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Passing Gridview SelectedValue ID to RadDataForm in a Childwindow

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Almond asked on 15 Jul 2011, 08:23 AM

MainForm1.png

ChildWindowForGrid2.png

Dear Telerik Gurus,

Good afternoon. I would just like to ask for your help on how to pass a value from the selecteditem of the RadGridView to a RadDataForm which is inside a childwindow. Basically, i have my main form wherein I have 2 RadDataGrid with 1 to many relationship. I have successfuly managed to add data to the 1st GridView and on the 2nd GridView. However, for the saving of data for the 2nd GridView, I need to include the KeyIDNo value from the 1st GridView for them to have a valid relationship.

I am using the following query from the DomainService of the application.

public void InsertTbl_rsdtls(tbl_rsdtls tbl_rsdtls)

{

tbl_rsdtls.rsdtls_date =DateTime.Now;

tbl_rsdtls.rsdtls_encodedby = "Place Username Here";

tbl_rsdtls.rsdtls_encodeddate = DateTime.Now;

tbl_rsdtls.rsdtls_modifiedby ="Place User Who Modified Record Here";

tbl_rsdtls.rsdtls_modifieddate = DateTime.Now;

if ((tbl_rsdtls.EntityState != EntityState.Detached))

{

this.ObjectContext.ObjectStateManager.ChangeObjectState(tbl_rsdtls, EntityState.Added);

}

else

{

this.ObjectContext.tbl_rsdtls.AddObject(tbl_rsdtls);

}

As you can see, I am also inserting additional details through this function call.

Now my question is, what is the best way to past the KeyIDNo of the SelectedItem from the 1st GridView to the RadDataForm in the Childwindow and then, how will I be able to save it. I am currently implementing a EF with a DomainServices.

Please also see attached screenshots.

Thanks in advance and hope someone can help me with my problem.

almond

14 Answers, 1 is accepted

answered on 17 Jul 2011, 05:26 AM

Hello Valentinem

Much thanks for your reply.

I forgot to say that I am a newbie with SL.

I would just like clarify that what i only need in the ParentGrid is the KeyID and all other information from the Childwindow will be saved in a Child/Detail table.I have also binded the other objects in TwoWay mode on the Child/Detail table as i will also be using the same ChildWindow in editting the record/s.

would it be alright if you can show me some codes or point me out where can i find a sample close to what I want to implement?

In some forums they are suggtesting to use View Model approach however as a newbie as I am, I am having a hard time understanding the View Model approach.

Thanks and hope someone can help me out with my problem.

regards,
almond

answered on 17 Jul 2011, 06:24 AM

Hi Almond

Instead of binding your dataform to a collection (setting the ItemsSource property) you can bind it to a single item (setting the CurrentItem property):

<telerik:RadDataForm CurrentItem="{Binding}" />

When a user clicks to add detail object, you create this detail in code and set its parent property to the selected item from the parent grid. Then you just set this detail to the DataContext property of the childwindow (the dataform will bind to this detail).

TheParent parent = parentGrid.SelectedItem as TheParent;
TheDetail detail = new TheDetail();
detail.TheParent = parent; //the detail already knows who its parent and gets parent id
YourChildWindow window = new YourChildWindow();
window.DataContex = detail;
window.Show();

And when a user clicks to edit an existing detail you don't have to create it. Just get it from the details grid:

TheDetail detail = detailsGrid.SelectedItem as TheDetail;
YourChildWindow window = new YourChildWindow();
window.DataContex = detail;
window.Show();

answered on 17 Jul 2011, 07:26 AM

Thanks again Valentine.

Please see attached forms from the project.

By the way I am using a MySQL as database.

I cant seem to attached the project, please see my codes below:

DataSource Declarations for the Parent/Master Grid and the Details/Child Grid:

<telerik:RadDomainDataSource x:Name="rsDS" AutoLoad="True" QueryName="GetTbl_rsIncByCompStatus" DomainContext="{StaticResource aimsDC}"

PageSize="10" Margin="15,10,320,12" Grid.Row="1" Grid.Column="1"

LoadedData="OnRSDataSourceLoadedData">

<telerik:RadDomainDataSource.SortDescriptors>

<telerikData:SortDescriptor Member="rs_idno"

SortDirection="Descending"/>

</telerik:RadDomainDataSource.SortDescriptors>

<telerik:RadDomainDataSource.QueryParameters>

<telerik:QueryParameter ParameterName="rsComp"

Value="{Binding ElementName=CompanyText, Path=Text}"/>

</telerik:RadDomainDataSource.QueryParameters>

</telerik:RadDomainDataSource>

<telerik:RadDomainDataSource x:Name="rsDtlsDS" AutoLoad="False" QueryName="GetTbl_rsdtlsByIdNo" DomainContext="{StaticResource aimsDC}"

PageSize="10" Margin="15,10,320,12" Grid.Row="1" Grid.Column="1">

<telerik:RadDomainDataSource.QueryParameters>

<telerik:QueryParameter ParameterName="rsIDNo" Value="{Binding SelectedItem.rs_idno, ElementName=rsGridView}"/>

</telerik:RadDomainDataSource.QueryParameters>

</telerik:RadDomainDataSource>

For the Parent Window with 2 RadDataFor Grid:

Here's the Declaration of the the Parent/Master Grid:

<telerik:RadGridView x:Name="rsGridView" MinHeight="200" MinWidth="160"

CanUserFreezeColumns="False" RowIndicatorVisibility="Collapsed"

ItemsSource="{Binding DataView, ElementName=rsDS}"

IsReadOnly="True" ShowGroupPanel="False" AutoGenerateColumns="False"

Margin="0,1,0,0" OpacityMask="Black" AlternationCount="2"

AlternateRowBackground="#5AE8E8E8" Grid.Column="1"

SelectionChanged="OnMasterGridViewSelectionChanged" Height="Auto"

VerticalAlignment="Top" AutoGeneratingColumn="OnRadGridViewAutoGeneratingColumn"

FontFamily="Verdana" FontSize="11">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn UniqueName="rs_idno" HeaderCellStyle="{StaticResource gridHdrStyle}"

HeaderTextAlignment="Center" Header="ID"

DataMemberBinding="{Binding rs_idno}" IsVisible="False" />

<telerik:GridViewDataColumn UniqueName="rs_date" Width="90" HeaderCellStyle="{StaticResource gridHdrStyle}"

HeaderTextAlignment="Center" DataFormatString="{}{0:dd-MMM-yy}"

Header="DATE" DataMemberBinding="{Binding rs_date}" TextAlignment="Right" />

<telerik:GridViewDataColumn UniqueName="rs_company" Width="110" HeaderCellStyle="{StaticResource gridHdrStyle}"

HeaderTextAlignment="center" Header="COMPANY"

DataMemberBinding="{Binding tbl_company.comp_abbr}" TextAlignment="Right" />

<telerik:GridViewDataColumn UniqueName="rs_purpose" Width="250" HeaderCellStyle="{StaticResource gridHdrStyle}"

HeaderTextAlignment="Center" Header="PUPRPOSE"

DataMemberBinding="{Binding rs_purpose}" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

Then for the code behind for the OnMasterGridViewSelectionChanged of the Parent/Master Grid i added the code below:

private void OnMasterGridViewSelectionChanged(object sender, Telerik.Windows.Controls.SelectionChangeEventArgs e)

{

this.rsDtlsDS.AutoLoad = true;

}

So that the changes for the Child/Details Grid can be seen below:

<telerik:RadGridView x:Name="rsDtlsGridView" MinHeight="200" MinWidth="200" CanUserFreezeColumns="False" RowIndicatorVisibility="Collapsed"

ItemsSource="{Binding DataView, ElementName=rsDtlsDS}" FontFamily="Verdana" FontSize="11"

IsReadOnly="True" ShowGroupPanel="False" AutoGenerateColumns="False" Margin="1,1,0,0"

OpacityMask="Black" AlternationCount="2" AlternateRowBackground="#5AE8E8E8"

Grid.Column="1" AutoGeneratingColumn="OnRadGridViewAutoGeneratingColumn" Height="200" VerticalAlignment="Top">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn HeaderCellStyle="{StaticResource gridHdrStyle}" HeaderTextAlignment="Center" Header="ID" DataMemberBinding="{Binding rs_idno}" IsVisible="False" />

<telerik:GridViewDataColumn HeaderCellStyle="{StaticResource gridHdrStyle}" HeaderTextAlignment="Center" Header="ID" DataMemberBinding="{Binding rsdtls_idno}" IsVisible="False" />

<telerik:GridViewDataColumn Width="60" HeaderCellStyle="{StaticResource gridHdrStyle}" HeaderTextAlignment="Center" Header="QTY" DataMemberBinding="{Binding rsdtls_qty}" TextAlignment="Right"/>

<telerik:GridViewDataColumn Width="70" HeaderCellStyle="{StaticResource gridHdrStyle}" HeaderTextAlignment="Center" Header="UNITS" DataMemberBinding="{Binding tbl_units.unt_desc}" TextAlignment="Right" />

<telerik:GridViewDataColumn Width="400" HeaderCellStyle="{StaticResource gridHdrStyle}" HeaderTextAlignment="Center" Header="DESCRIPTION" DataMemberBinding="{Binding rsdtls_desc}" TextAlignment="Right" />

</telerik:RadGridView.Columns>

</telerik:RadGridView>

For the Parent/Master Grid. I have succesuflly implemented the add, edit and delete functionality. For the Child/Details Grid, I have also implemented the same if i dont take into consideration teh Parent/Master Grid's KeyID, but I need to save that ID in order for me to get the relationship of the two tables and have the Master Detail functionality to work.

Please see how I do my Childwindow Call for the addButton click of the Child/Detail Grid below:

private void addNewRSDtls_Click(object sender, RoutedEventArgs e)

{

//MessageBox.Show(rsGridView.SelectedItem.ToString());

RequisitionDtlsDataEntry addRsDtls = new RequisitionDtlsDataEntry("A");

addRsDtls.rsIDNoHldr = rsGridView.SelectedItem.ToString();

addRsDtls.Closed += new EventHandler(addNewRSDtls_Closed);

addRsDtls.Show();

}

void addNewRSDtls_Closed(object sender, EventArgs e)

{

//EmployeeRegistrationWindow emp = (EmployeeRegistrationWindow)sender;

RequisitionDtlsDataEntry rsDtls = (RequisitionDtlsDataEntry)sender;

//code can be deleted if it will not work.

if (rsDtls.newRsDtls != null)

{

aimsSysContext _aimsDomainContext = (aimsSysContext)(rsDtlsDS.DomainContext);

_aimsDomainContext.tbl_rsdtls.Add(rsDtls.newRsDtls);

this.rsDtlsDS.SubmitChanges();

}

Then, here my CodeBehind for the the ChildWindow:

namespace aimsSys2011.Views

{

public partial class RequisitionDtlsDataEntry : ChildWindow

{

public string rsIDNoHldr { get; set; }

public tbl_rsdtls newRsDtls { get; set; }

public string entryMode = "";

public RequisitionDtlsDataEntry(string _mode)

{

InitializeComponent();

entryMode = _mode;

switch (entryMode)

{

case "A":

newRsDtls = new tbl_rsdtls();

radDataFormRSDtls.CurrentItem = newRsDtls;

break;

case "E":

break;

case "D":

break;

default:

break;

}

radDataFormRSDtls.BeginEdit();

}

private void radDataFormRSDtls_EditEnded(object sender, Telerik.Windows.Controls.Data.DataForm.EditEndedEventArgs e)

{

if (e.EditAction == Telerik.Windows.Controls.Data.DataForm.EditAction.Commit)

{

radDataFormRSDtls.CommitEdit();

this.DialogResult = true;

}

else if (e.EditAction == Telerik.Windows.Controls.Data.DataForm.EditAction.Cancel)

{

radDataFormRSDtls.CancelEdit();

this.DialogResult = false;

}

private void radDataFormRSDtls_EditEnding(object sender, Telerik.Windows.Controls.Data.DataForm.EditEndingEventArgs e)

{

if (e.EditAction == Telerik.Windows.Controls.Data.DataForm.EditAction.Commit)

{

switch (MessageBox.Show("Are You Sure You Want to Save this New Record?", "Saving Requisition Details", MessageBoxButton.OKCancel))

{

case MessageBoxResult.OK:

try

{

if (((sender as RadDataForm).CurrentItem as tbl_rsdtls).rsdtls_itemcategory == null || ((sender as RadDataForm).CurrentItem as tbl_rsdtls).rsdtls_subcategory == null ||

((sender as RadDataForm).CurrentItem as tbl_rsdtls).rsdtls_type == null)

{

MessageBox.Show("Please Insert Values to Required Requisition Details.");

e.Cancel = true;

}

catch (Exception ex)

{

MessageBox.Show(ex.Message, "Alert!", MessageBoxButton.OK);

}

break;

}

else if (e.EditAction == Telerik.Windows.Controls.Data.DataForm.EditAction.Cancel)

{

switch (MessageBox.Show("Are You Sure You Want to Cancel Adding/Editing Requisition Details?", "Cancelling Adding/Editing Requisition Details", MessageBoxButton.OKCancel))

{

case MessageBoxResult.OK:

try

{

switch (entryMode)

{

case "A":

newRsDtls = null;

break;

case "E":

//Console.WriteLine("Case 2");

break;

case "D":

//Console.WriteLine("Case 2");

//this.addSuppDataForm.ItemsSource = "{{Binding}}";

break;

default:

//Console.WriteLine("Default case");

break;

}

catch (Exception ex)

{

MessageBox.Show(ex.Message, "Alert!", MessageBoxButton.OK);

}

break;

}

private void itemCategoryCbo_SelectionChanged(object sender, Telerik.Windows.Controls.SelectionChangedEventArgs e)

{

MessageBox.Show(rsIDNoHldr.ToString());

}

Then for my ChildWindow UI which contains a RadDataForm please see my Code Below:

<telerik:RadDataForm HorizontalAlignment="Left" Margin="2,44,2,0" Name="radDataFormRSDtls" VerticalAlignment="Top" CurrentItem="{Binding}" AutoCommit="False" AutoEdit="True" AutoGenerateFields="False" CommandButtonsVisibility="Commit, Cancel" Background="{StaticResource Windows7RowBackground}" EditEnding="radDataFormRSDtls_EditEnding" EditEnded="radDataFormRSDtls_EditEnded" Height="340" Width="862">

<telerik:RadDataForm.EditTemplate>

<DataTemplate>

<StackPanel>

<Grid x:Name="DataFormGrid" Margin="2">

<Grid.RowDefinitions>

<RowDefinition Height="40" />

</Grid.RowDefinitions>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="107" />

<ColumnDefinition Width="96" />

<ColumnDefinition Width="56" />

<ColumnDefinition Width="125" />

<ColumnDefinition Width="12" />

<ColumnDefinition Width="127" />

<ColumnDefinition Width="330*" />

</Grid.ColumnDefinitions>

<sdk:Label Content="Item Category: " Height="28"

HorizontalAlignment="Right"

Name="lblCompany" VerticalAlignment="Center"

Width="89" />

<sdk:Label Content="Item Type: " Height="28"

HorizontalAlignment="Right"

Name="lblPurpose" VerticalAlignment="Center"

Width="66" Grid.Row="1" />

<sdk:Label Content="Priority Details: " Height="28"

HorizontalAlignment="Right" Margin="0,13,6,12"

Name="lblRequestedBy" VerticalAlignment="Center"

Width="91" Grid.Row="2" />

<sdk:Label Content="Item Description: " Height="28"

HorizontalAlignment="Right"

Name="lblApprovedBy" VerticalAlignment="Center"

Width="117" Grid.Row="3" />

<sdk:Label Content="Quantity: " Height="28"

HorizontalAlignment="Right"

Name="lblNotedBy" VerticalAlignment="Center"

Width="57" Grid.Row="4" />

<sdk:Label Content="Status: " Height="28"

HorizontalAlignment="Right"

Name="lblPurchasingPer" VerticalAlignment="Center"

Width="45" Grid.Row="5" />

<sdk:Label Content="Miscellaneous: "

Name="lblPurchasingPer_Copy" Grid.Row="6"

VerticalAlignment="Center"

HorizontalAlignment="Right" Height="16" />

<sdk:Label Content="Units: "

HorizontalAlignment="Right" Margin="0,12,0,13"

Name="lblNotedBy_Copy" Width="56" Grid.Column="2"

Grid.Row="4" />

<sdk:Label Content="For PO: " HorizontalAlignment="Right"

Margin="0,11,0,16" Name="lblNotedBy_Copy1" Width="56"

Grid.Column="2" Grid.Row="6" Height="13" />

<sdk:Label Content="Item Sub Category: "

HorizontalAlignment="Right" Margin="0,10,0,14"

Name="lblCompany_Copy" Grid.Column="5" />

<sdk:Label Content="Priority: " HorizontalAlignment="Right"

Margin="0,13,0,11" Name="lblPurpose_Copy1"

Grid.Column="5" Grid.Row="1" />

<sdk:Label Content="Remarks: " HorizontalAlignment="Right"

Margin="0,12,0,13" Name="lblPurpose_Copy2"

Grid.Column="5" Grid.Row="4" />

<ex:ComboBoxDataSource x:Name="CategoryDataSource" DomainContext="{StaticResource aimsDC}" OperationName="GetTbl_itemcategoryQuery" Margin="518,429,68,12" />

<!--<ex:ComboBoxDataSource x:Name="subCategoryDataSource" DomainContext="{StaticResource aimsDC}" OperationName="GetTbl_itemsubcategoryQuery" Margin="578,429,12,12">

</ex:ComboBoxDataSource>-->

<ex:ComboBoxDataSource x:Name="subCategoryDataSource" DomainContext="{StaticResource aimsDC}" OperationName="GetTbl_itemsubcategoryByIDQuery" Margin="578,429,12,12">

<ex:ComboBoxDataSource.Parameters>

<ex:Parameter ParameterName="subCatItemIDNo" Value="{Binding SelectedIndex, ElementName=itemCategoryCbo}" />

</ex:ComboBoxDataSource.Parameters>

</ex:ComboBoxDataSource>

<dataForm:DataField Grid.ColumnSpan="3" Label="" Margin="3,3,0,2"

Grid.Column="1" Grid.Row="1">

<telerik:RadComboBox x:Name="itemTypeCbo" DisplayMemberPath="type_desc"

FlowDirection="LeftToRight"

Grid.Column="5" Grid.Row="0" Height="23"

HorizontalContentAlignment="Left"

ItemsSource="{Binding DataView, ElementName=itemTypeDS}"

Margin="1,0,0,0"

SelectedValue="{Binding rsdtls_type, Mode=TwoWay}"

SelectedValuePath="type_idno"

ex:ComboBox.Mode="AsyncEager"

/>

</dataForm:DataField>

<dataForm:DataField Label="" Margin="3,3,0,2" Grid.Column="6" Grid.Row="1">

<telerik:RadComboBox x:Name="priorityCbo" DisplayMemberPath="priority_desc"

FlowDirection="LeftToRight"

Grid.Column="5" Grid.Row="0"

Height="23" HorizontalContentAlignment="Left"

ItemsSource="{Binding DataView, ElementName=priorityDS}"

Margin="1,0,0,0"

SelectedValue="{Binding rsdtls_priority, Mode=TwoWay}"

SelectedValuePath="priority_idno"

ex:ComboBox.Mode="AsyncEager"

/>

</dataForm:DataField>

<dataForm:DataField Grid.ColumnSpan="6" Label="" Margin="3,6,6,4"

Grid.Column="1" Grid.Row="2">

<telerik:RadMaskedTextBox EmptyContent="Please Input Priority Details Here..."

HorizontalAlignment="Stretch" MaskType="None"

Name="radMaskedPrioDtlsTxt" SelectionOnFocus="Default"

UpdateValueEvent="PropertyChanged"

Value="{Binding rsdtls_prioritydtls, Mode=TwoWay}" />

</dataForm:DataField>

<dataForm:DataField Grid.ColumnSpan="6" Label="" Margin="3,5,6,6"

Grid.Column="1" Grid.Row="3">

<telerik:RadMaskedTextBox EmptyContent="Please Input Description Here..."

HorizontalAlignment="Stretch"

MaskType="None" Name="radMaskedDescTxt"

SelectionOnFocus="Default"

Value="{Binding rsdtls_desc, Mode=TwoWay}" />

</dataForm:DataField>

<dataForm:DataField Label="" Margin="3,5,0,0"

Grid.Column="1" Grid.Row="4">

<telerik:RadMaskedTextBox EmptyContent="Qty."

HorizontalAlignment="Stretch"

MaskType="None"

Name="radMaskedNotedByTxt"

ValueChanging="radMaskedNotedByTxt_ValueChanging"

SelectionOnFocus="Default"

Value="{Binding rsdtls_qty, Mode=TwoWay}" />

</dataForm:DataField>

<dataForm:DataField Label="" Margin="3,5,0,0"

Grid.Column="3" Grid.Row="4">

<telerik:RadComboBox x:Name="unitsCbo" DisplayMemberPath="unt_desc"

FlowDirection="LeftToRight"

Grid.Column="5" Grid.Row="0" Height="23"

HorizontalContentAlignment="Left"

ItemsSource="{Binding DataView, ElementName=unitsDS}"

Margin="1,0,0,0"

SelectedValue="{Binding rsdtls_units, Mode=TwoWay}"

SelectedValuePath="unt_idno"

ex:ComboBox.Mode="AsyncEager"

/>

</dataForm:DataField>

<dataForm:DataField Grid.ColumnSpan="3" Label=""

Margin="3,1,0,3" Grid.Column="1"

Grid.Row="5">

<telerik:RadComboBox x:Name="statusCbo" DisplayMemberPath="rs_stat_desc"

FlowDirection="LeftToRight"

Grid.Column="5" Grid.Row="0"

Height="23"

HorizontalContentAlignment="Left"

ItemsSource="{Binding DataView, ElementName=rsDtlsStatusDS}"

Margin="1,0,0,0"

SelectedValue="{Binding rsdtls_status, Mode=TwoWay}"

SelectedValuePath="rs_stat_id"

ex:ComboBox.Mode="AsyncEager"

/>

</dataForm:DataField>

<telerik:DataFormCheckBoxField DataMemberBinding="{Binding rsdtls_pogen, Converter={StaticResource MiscConverter}, Mode=TwoWay}"

FlowDirection="LeftToRight" HorizontalAlignment="Left"

HorizontalContentAlignment="Stretch"

Label="" LabelPosition="Beside" Margin="0"

Name="forPOCheckBox" Padding="0"

VerticalAlignment="Center"

VerticalContentAlignment="Stretch"

Grid.Column="3" Grid.Row="6" />

<telerik:DataFormCheckBoxField DataMemberBinding="{Binding rsdtls_misc, Mode=TwoWay, Converter={StaticResource MiscConverter}}"

FlowDirection="LeftToRight"

HorizontalAlignment="Left" HorizontalContentAlignment="Center"

Label="" LabelPosition="Beside" Margin="0"

Name="miscCheckBox" Padding="0"

VerticalAlignment="Center"

VerticalContentAlignment="Center"

Grid.Column="1" Grid.Row="6" />

<dataForm:DataField Grid.RowSpan="3" Label=""

Margin="3,3,6,8" Grid.Column="6" Grid.Row="4">

<telerik:RadMaskedTextBox EmptyContent="Please Input Remarks Here..."

HorizontalAlignment="Stretch"

Margin="1,-40,3,-41"

MaskType="None"

Name="radMaskedNotedByTxt2"

SelectionOnFocus="Default"

UpdateValueEvent="PropertyChanged"

Value="{Binding rsdtls_remarks, Mode=TwoWay}"

VerticalContentAlignment="Stretch" Padding="2" />

</dataForm:DataField>

<dataForm:DataField Label="" Margin="3,3,0,2" Height="36"

VerticalAlignment="Top"

Grid.Column="6" Grid.RowSpan="2">

<telerik:RadComboBox x:Name="itemSubCategoryCbo" DisplayMemberPath="subcat_desc"

FlowDirection="LeftToRight" Grid.Column="5" Grid.Row="0" Height="23"

HorizontalContentAlignment="Left"

ItemsSource="{Binding Data, ElementName=subCategoryDataSource}"

Margin="1,0,0,0"

SelectedValue="{Binding rsdtls_subcategory, Mode=TwoWay}"

SelectedValuePath="subcat_idno"

ex:ComboBox.Mode="AsyncEager"

/>

</dataForm:DataField>

<dataForm:DataField Label="" Margin="3,6,5,4"

Grid.Column="5" Grid.Row="5"

IsEnabled="False">

<telerik:RadMaskedTextBox x:Name="radMaskedRsIDNoTxt"

HorizontalAlignment="Stretch" MaskType="None"

SelectionOnFocus="Default"

UpdateValueEvent="PropertyChanged"

Value=

"{Binding rsIDNoHldr, Mode= OneWay, NotifyOnValidationError=True, ValidatesOnExceptions=True, ValidatesOnDataErrors=True}"

/>

</dataForm:DataField>

<dataForm:DataField Label="" Margin="3,3,0,2" Grid.Column="1"

Grid.ColumnSpan="3">

<telerik:RadComboBox x:Name="itemCategoryCbo" DisplayMemberPath="cat_desc"

FlowDirection="LeftToRight" Grid.Column="5" Grid.Row="0"

Height="23" HorizontalContentAlignment="Left"

ItemsSource="{Binding Data, ElementName=CategoryDataSource}"

Margin="1,0,0,0"

SelectedValue="{Binding rsdtls_itemcategory, Mode=TwoWay}"

SelectedValuePath="cat_idno"

ex:ComboBox.Mode="AsyncEager" SelectionChanged="itemCategoryCbo_SelectionChanged"

/>

</dataForm:DataField>

</Grid>

</StackPanel>

</DataTemplate>

</telerik:RadDataForm.EditTemplate>

</telerik:RadDataForm>

Actually, my project doesn't really have any errors. What I really need is how to inlcude the value of rsIDNoHldr to be included when I hit the Ok button to save the values that I entered in the data form in the ChildWindow.

Hope you can help me and thanks in advance.

almond

Accepted

answered on 18 Jul 2011, 04:13 AM

Hello Valentine,

Thank you so much for your help.

I was able to solve my problem basing on the code you sent.

As a newbie as I am, I found out with the help of your code that I can assign values to fields in the _Close function before I execute the .SubmitChanges

Basically I just added the code below:

rsDtls.newRsDtls.rs_idno = MyRSIDNoHldr;

and I was able to save the value of the KeyIDNo from the Parent/Master Grid. The MyRSIDNoHldr is a variable which I declared as long and was extracted from the rsGridView.SelectedItem.

For those who might have the same problem. Just message me and I'll be glad to help :)

Thanks again for your help.

answered on 12 Mar 2012, 08:08 AM

Hello Almond,

Thank you so much for your prompt reply. The problem as I mentioned before is that the combobox field of the dataform in the childwindow is always blank and the correct Client Type is not selected eventhough the combobox is populated with with all Client Types. Here is my code wishing you can provide any help or advice.

Your help is much appreciated.

Public Sub pop_closed(sender As Object, e As EventArgs)

Dim chl As ClientSdfChild = CType(sender, ClientSdfChild)

If chl.DialogResult = True Then

CType(Me.LayoutRoot.DataContext, ClassClientContainer).Save()

Else

CType(Me.LayoutRoot.DataContext, ClassClientContainer).Cancel()

End If

End Sub

Private Sub RadBtnEdit_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles RadButton1.Click

Dim obj As New ClientSdf

obj = CType(ClientSdfGrid.SelectedItem, ClientSdf)

Dim pop As New ClientSdfChild(obj.qClientCode, obj.qClientType)

AddHandler pop.Closed, AddressOf pop_closed

CType(pop.FindName("childWindow"), Grid).DataContext = Me.LayoutRoot.DataContext

pop.Show()

End Sub

Private Sub ClientSdfGrid_SelectionChanged(sender As Object, e As Telerik.Windows.Controls.SelectionChangeEventArgs) Handles ClientSdfGrid.SelectionChanged

CType(Me.LayoutRoot.DataContext, ClassClientContainer).CurrentClient = CType(CType(sender, RadGridView).SelectedItem, ClientSdf)

End Sub



<controls:ChildWindow x:Class="UnitReg.ClientSdfChild"
           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
           xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
           xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls"
           xmlns:data="clr-namespace:UnitReg"
           Width="540" Height="658"
           Title="Client Details" xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk" mc:Ignorable="d" xmlns:riaControls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.DomainServices" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:my="clr-namespace:UnitReg" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation">
    <controls:ChildWindow.Resources>
        <data:ClassClientContainer x:Key="ClassClientContainer"/>
    </controls:ChildWindow.Resources>
    <Grid Name="childWindow" Width="518" Height="618" DataContext="{Binding Source={StaticResource ClassClientContainer}, Path=CurrentClient}">
        <Grid.Resources>
            <DataTemplate x:Key="MyTemplate">
                <Grid>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition/>
                        <ColumnDefinition/>
                    </Grid.ColumnDefinitions>
                    <Grid.RowDefinitions>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                        <RowDefinition/>
                    </Grid.RowDefinitions>
                    <telerik:DataFormDataField Grid.Row="0" Label="Client Code" DataMemberBinding="{Binding qClientCode, Mode=TwoWay}" />
                    <telerik:DataFormComboBoxField Grid.Column="1" Grid.Row="0" Label="Client Type" DataMemberBinding="{Binding qClientType, Mode=TwoWay}" ItemsSource="{Binding Source={StaticResource ClassClientContainer}, Path=ClientTypes}" DisplayMemberPath="Description"   SelectedValuePath="qClientType" >
                        </telerik:DataFormComboBoxField>
                    <telerik:DataFormDataField Grid.Row="1" Label="Acc Name" DataMemberBinding="{Binding ClientAccName, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Column="1" Grid.Row="1" Label="Bank Acc. No." DataMemberBinding="{Binding BankAccountNo, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="2" Label="First Name" DataMemberBinding="{Binding Firstname, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="2" Grid.Column="1" Label="Last Name" DataMemberBinding="{Binding Surname, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="3" Grid.Column="1" Label="Client Category" DataMemberBinding="{Binding ClientCategory, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="3" Grid.Column="0" Label="Salutation" DataMemberBinding="{Binding Salutation, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="4" Grid.Column="1" Label="Other Name" DataMemberBinding="{Binding OtherName, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="4" Grid.Column="0" Label="IC Number" DataMemberBinding="{Binding ICNumber, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="5" Grid.Column="1" Label="Occupation" DataMemberBinding="{Binding Occupation, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="5" Grid.Column="0" Label="Tel" DataMemberBinding="{Binding Tel, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="6" Grid.Column="1" Label="Mobile" DataMemberBinding="{Binding Mobile, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="6" Grid.Column="0" Label="Email" DataMemberBinding="{Binding Email, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="7" Grid.Column="1" Label="Address" DataMemberBinding="{Binding Address, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="7" Grid.Column="0" Label="MailingAddress" DataMemberBinding="{Binding MailingAddress, Mode=TwoWay}" />
                    <telerik:DataFormDataField Grid.Row="8" Grid.Column="1" Label="RiskProfile" DataMemberBinding="{Binding RiskProfile, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="8" Grid.Column="0" Label="Password" DataMemberBinding="{Binding Password, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="9" Grid.Column="1" Label="Signature" DataMemberBinding="{Binding Signature, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="9" Grid.Column="0" Label="EPF Code" DataMemberBinding="{Binding EPFInvestmentCode, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="10" Grid.Column="1" Label="Client Status" DataMemberBinding="{Binding ClientStatus, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="10" Grid.Column="0" Label="MailingAddress" DataMemberBinding="{Binding MailingAddress, Mode=TwoWay}"/>
                    <telerik:DataFormDateField Grid.Row="11" Grid.Column="1" Label="Date of Birth" DataMemberBinding="{Binding DateOfBirth, Mode=TwoWay}"/>
                    <telerik:DataFormDateField Grid.Row="11" Grid.Column="0" Label="LastKeyInDate" DataMemberBinding="{Binding LastKeyInDate, Mode=TwoWay}"/>
                    <telerik:DataFormDateField Grid.Row="12" Grid.Column="0" Label="LastAppDate" DataMemberBinding="{Binding LastApprovedDate, Mode=TwoWay}"/>
                    <telerik:DataFormDataField Grid.Row="12" Grid.Column="1" Label="LastApprovedBy" DataMemberBinding="{Binding LastApprovedBy, Mode=TwoWay}"/>
                     
 
 
 
 
                </Grid>
            </DataTemplate>
        </Grid.Resources>
 
 
        <telerik:RadDataForm HorizontalAlignment="Left" Margin="12,12,0,0" Name="DF" VerticalAlignment="Top" Height="593" Width="494" AutoEdit="True" AutoGenerateFields="False"
                             ReadOnlyTemplate="{StaticResource MyTemplate}"
                             EditTemplate="{StaticResource MyTemplate}"
                             NewItemTemplate="{StaticResource MyTemplate}" CurrentItem="{Binding Path=CurrentClient}">
             



        
        </telerik:RadDataForm>
    </Grid>
</controls:ChildWindow>

Public

Class ClassClientContainer

Implements INotifyPropertyChanged

Private _Context As SdfDomainContext

Public Sub New()

_Context = New SdfDomainContext

Clients = _Context.ClientSdfs

ClientTypes = _Context.ClientTypes

FilteredClients = _Context.ClientSdfs

End Sub

Public Event PropertyChanged(sender As Object, e As System.ComponentModel.PropertyChangedEventArgs) Implements System.ComponentModel.INotifyPropertyChanged.PropertyChanged

Protected Overridable Sub OnPropertyChanged(ByVal propName As String)

RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propName))

End Sub

Private _Clients As EntitySet(Of ClientSdf)

Public Property Clients() As EntitySet(Of ClientSdf)

Get

_Context.Load(_Context.GetClientSdfsQuery)

_Clients = _Context.ClientSdfs

Return _Clients

End Get

Set(value As EntitySet(Of ClientSdf))

If _Clients IsNot value Then

_Clients = value

OnPropertyChanged("Clients")

End If

End Set

End Property

Private _ClientTypes As EntitySet(Of ClientType)

Public Property ClientTypes() As EntitySet(Of ClientType)

Get

_Context.Load(_Context.GetClientTypesQuery)

_ClientTypes = _Context.ClientTypes

Return _ClientTypes

End Get

Set(value As EntitySet(Of ClientType))

If _ClientTypes IsNot value Then

_ClientTypes = value

OnPropertyChanged("ClientTypes")

End If

End Set

End Property

Private _CurrentClient As ClientSdf

Public Property CurrentClient As ClientSdf

Get

Return _CurrentClient

End Get

Set(value As ClientSdf)

If _CurrentClient IsNot value Then

_CurrentClient = value

OnPropertyChanged("CurrentClient")

'FilterTypesByClient()

End If

End Set

End

Property

answered on 12 Mar 2012, 09:26 AM

have you tried the link that i showed you? I am also a newbie but the link i sent you totally helped me alot in implementing the combobox. I am running a project wiht Entity Framework over a MySQL database and it works fine.

Please see how I implemented the

Add Reference:

xmlns:ex="clr-namespace:ComboBoxExtensions;assembly=ComboBoxExtensions"

Then add a DataSource:

<ex:ComboBoxDataSource x:Name="itemTypeDS" DomainContext="{StaticResource aimsDC}" OperationName="GetTbl_itemtypeQuery" Margin="518,429,68,12" />

Then add the Rad Combo Box:

<dataForm:DataField Label="" Margin="3,3,0,2" Grid.Column="1">
<telerik:RadComboBox x:Name="itemTypeCbo" DisplayMemberPath="type_desc" FlowDirection="LeftToRight" Margin="1,0,0,0" Grid.Column="5" Grid.Row="0" Height="23" HorizontalContentAlignment="Left" ItemsSource="{Binding Data, ElementName=itemTypeDS}"

SelectedValue="{Binding rsdtls_type, Mode=TwoWay}"

SelectedValuePath="type_idno" TabIndex="1"

ex:ComboBox.Mode="AsyncEager" />
</dataForm:DataField>

Please always remember to place ex:ComboBox.Mode at the last part of declaration of the combobox.
Also, take note that the SelectedValuePath is the index of your Parent table related to a child table. On my side my parent table is the itemType with the index of type_idno which is related to the field rsdtls_type in my child table rsDtls. Then you will notice that in the DisplayMemberPath, I declared the type_desc field from the itemType table which will then display the description of the item type that was saved table.

Hope the code above will help you.

answered on 12 Mar 2012, 09:30 AM

Hi Nafez,
In the resources section of your child window you create a new ClassClientContainer object and it is different from that you pass to the grid's datacontext property in code. So you bind itemssource of your combobox to the wrong object.
I'm not sure if it will work, but you can try binding itemssource like this:

<telerik:DataFormComboBoxField

DataMemberBinding="{Binding qClientType, Mode=TwoWay}"

ItemsSource="{Binding DataContext.ClientTypes, RelativeSource={RelativeSource AncestorType=Grid, AncestorLevel=2}}"

DisplayMemberPath="Description"

SelectedValuePath="qClientType" />

And I just noticed that you set the DataContext property of the grid both in XAML and in code... Set it in code only.

answered on 12 Mar 2012, 10:09 AM

ClientDetails-OK.jpg

ClientDetails-ERROR.jpg

Hi Valentin,

Thank you for your help. I tried the way you mentioned but it didn't work. I think the problem is not in the ItemsSource but in the DataMemberBinding. Because in my scenario sometimes when the childwindow first loads it shows the ClientType correctly but sometimes not and the validation for that combobox will be fired. I attached two screenshots of the both scenarios so you can understand my case.

Deeply appreciate your help.

answered on 12 Mar 2012, 11:23 AM

I have one more code that might be useful to you Nafez, please see below code:

<telerik:RadDomainDataSource Name="serviceTypeStatusDS" QueryName="GetTbl_servicetypestatusQuery" AutoLoad="True" DomainContext="{StaticResource fsdbDC}">

</telerik:RadDomainDataSource>

<TextBlock Text="Status: " Margin="2,0" FontWeight="Bold" Grid.Row="3" Grid.Column="1" HorizontalAlignment="Right" VerticalAlignment="Center" Foreground="#C14B4B4B" />

<dataForm:DataField Label="" Grid.Column="2" Grid.Row="3" Margin="3,3,0,3" HorizontalAlignment="Left" VerticalAlignment="Center" Width="191">

<telerik:RadComboBox Width="161" Height="23" x:Name="servTypeStatCbo" SelectedValue=

"{Binding servicetype_status, Mode=TwoWay, NotifyOnValidationError=true, ValidatesOnExceptions=true, TargetNullValue=''}"

ItemsSource="{Binding DataView, ElementName=serviceTypeStatusDS}" SelectedValuePath="servtypestat_idno" DisplayMemberPath="servtypestat_desc" FlowDirection="LeftToRight" HorizontalContentAlignment="Left" Margin="0" Padding="2,0" />

</dataForm:DataField>

You might want to check the relationship of your table as well.

Hope code above helps :)