Questions on UI for ASP.NET AJAX Forum

4 answers

203 views

Hi,

I have a dynamically created RadGrid. Now on expanding the child tables in the Grid, I want to get the name of the tableView on "grv_ItemCommand" event. Here is my code:

private void BindData()

{

clickedType = Session["type"].ToString();

int id = ParentEntity.ParentEntityId;

GridTableView tableView = new GridTableView(grv);

switch (clickedType)

{

case "All Categories":

using (SpaceCategoriesService.SpaceCategoriesServiceClient s = new SpaceCategoriesService.SpaceCategoriesServiceClient())

{

grv.DataSource = s.GetCategoryTable();

tableView.Name = "Buildings";

tableView.DataMember = "Buildings";

}

break;

case "SpaceCategories":

using (SpaceBuildingsService.SpaceBuildingsServiceClient s = new SpaceBuildingsService.SpaceBuildingsServiceClient())

{

grv.DataSource = s.GetBuildingByCategoryId(id);

tableView.Name = "Floors";

tableView.DataMember = "Floors";

}

break;

case "SpaceBuildings":

using (SpaceFloorService.SpaceFloorServiceClient s = new SpaceFloorService.SpaceFloorServiceClient())

{

grv.DataSource = s.GetFloorsByBuildingId(id);

tableView.Name = "Rooms";

tableView.DataMember = "Rooms";

}

break;

case "SpaceFloors":

using (SpaceRoomService.SpaceRoomServiceClient s = new SpaceRoomService.SpaceRoomServiceClient())

{

grv.DataSource = s.GetRoomByFloorId(id);

}

break;

default:

throw new Exception("Unable to identify Entity.");

}

grv.MasterTableView.DetailTables.Clear();

grv.MasterTableView.DetailTables.Add(tableView);

GridTableView tab = new GridTableView(grv);

switch (tableView.Name)

{

case "Buildings":

tab.DataMember = "Floors";

tab.Name = "Floors";

tableView.DetailTables.Clear();

tableView.DetailTables.Add(tab);

break;

case "Floors":

tab.DataMember = "Rooms";

tab.Name = "Rooms";

tableView.DetailTables.Clear();

tableView.DetailTables.Add(tab);

break;

default:

break;

}

if (tableView.Name == "Buildings")

{

GridTableView subTab = new GridTableView(grv);

if (tab.Name == "Floors")

{

subTab.DataMember = "Rooms";

subTab.Name = "Rooms";

tab.DetailTables.Clear();

tab.DetailTables.Add(subTab);

}

grv.DataBind();

}

protected void grv_ItemCommand(object sender, GridCommandEventArgs e)

{

BindDetails(ParentEntity.ParentEntityId);

HttpContext.Current.Session["id"] = ParentEntity.ParentEntityId;

switch (Session["type"].ToString())

{

case "All Categories":

FormExtenderControl1.EntityType = new BaseEntities(BaseEntities.SpaceCategories);

break;

case "SpaceCategories":

FormExtenderControl1.EntityType = new BaseEntities(BaseEntities.SpaceBuildings);

break;

case "SpaceBuildings":

FormExtenderControl1.EntityType = new BaseEntities(BaseEntities.SpaceFloors);

break;

case "SpaceFloors":

FormExtenderControl1.EntityType = new BaseEntities(BaseEntities.SpaceRooms);

break;

default:

throw new Exception("Unable to identify Entity.");

}

clickedType = Session["type"].ToString();

if (e.CommandName == "Modify")

{

btnSave.CommandName = "Modify";

int id = GetID();

FormExtenderControl1.EntityPrimaryKeyId = id;

FormExtenderControl1.DataBind();

mdlPopup.Show();

}

if (e.CommandName == "Delete")

{

int id = GetID();

FormExtenderControl1.Delete(id);

BindData();

}

if (e.CommandName == "Add")

{

btnSave.CommandName = "Add";

FormExtenderControl1.EntityPrimaryKeyId = -1;

FormExtenderControl1.DataBind();

mdlPopup.Show();

}

private Int32 GetID()

{

foreach (GridDataItem dataItem in grv.MasterTableView.DetailTables.OwnerGrid.Items)

{

if (dataItem.Selected == true)

{

Int32 ID = Int32.Parse(dataItem["Id"].Text);

return ID;

}

throw new ArgumentNullException("Id Not found");

}

Please assist me....

thanks
Rohan

Grid

answered on 20 Jan 2011

2 answers

86 views

RadGrid code not working after upgrade

Here is the code that worked previously and is throwing an exception now. Its purpose is to set the column header based on a datasets caption property. I think I went from Q1 2010 to current. I will also show some strange debug watch results.

Private Sub RadGrid_ColumnCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridColumnCreatedEventArgs) Handles RadGrid.ColumnCreated

Dim field As String

Try

field = e.Column.HeaderText

If Not field = Nothing And field <> "" Then

If DataSet.Tables(TableName).Columns(field).ColumnName = "ID" Then

'e.Column.Display = False ' this causes some strange formatting problems

ElseIf DataSet.Tables(TableName).Columns(field).Caption() = _

DataSet.Tables(TableName).Columns(field).ColumnName Then

e.Column.Visible = False

Else

e.Column.HeaderText = DataSet.Tables(TableName).Columns(field).Caption()

e.Column.HeaderStyle.Wrap = False

End If

Catch ex As Exception

End Try

End Sub

The exception is being caught when trying to evaluate:DataSet.Tables(TableName).Columns(field).ColumnName

Here are the watch results on one of the passes. The field xx_tablename is expected. I am setting field = e.Column.HeaderText early on.

DataSet.Tables(TableName).Columns(0).ColumnName	xx_tablename	String
e.Column.HeaderText	xx_ tablename	String
DataSet.Tables(TableName).Columns("xx_tablename").ColumnName	xx_tablename	String
field	xx_ tablename	String
DataSet.Tables(TableName).Columns(field).ColumnName	Referenced object 'Item' has a value of 'Nothing'.
ex.message	Object reference not set to an instance of an object.	String

If I hard code variable field to "xx_tablename" in the beginning it does not error out and I get the result I want.

Grid

answered on 20 Jan 2011

6 answers

98 views

Why RadEditor Lite for WSS 3?

Currently I am looking for another rich text editor to replace the default one in WSS 3 and I came across radeditor!

When the comparison chart for Native MS Editor for MOSS vs Telerik RadEditor Lite for ASP.Net showing both can and cannot do exactly the same stuff, so what is the purpose of using Telerik RadEditor Lite then? Or did I miss out something? Pardon a novice like me if that's the case :~)
(http://www.telerik.com/documents/RadEditorMOSS_Feature_Comparison.pdf)

Hope to get any suggestion or advice from you guys, thanks.

Michelle

WebParts for SharePoint

answered on 20 Jan 2011

6 answers

129 views

Telerik.web.ui and xmlreader issue?

Hello;
I have a SharePoint site provisioning process that creates a site from a particular template and adds (imports) webparts to that site. None of the webparts or the entire site provisioning process uses any Telerik. I recently deployed rad editor to my SharePoint web application. Ever since then the site provisioning process breaks. In particular it breaks when i'm trying to read any dwp file before i import it to the page using the splimitedwebpartmanager.Importwebpart.. method. '

As soon as i remove the safe controls lines from the web config, the site provisioning process works again.

Why is this happening?

thanks
Charles

Ajax

answered on 20 Jan 2011

2 answers

98 views

accessing combobox from a different frame

Hello
I'm trying to automate a combobox selection from a different frame then the one that contains the control.
For standard HTML controls just write parent.rightFrame.document.getElementbyId.....
However whem I try parent.rightFrame.document.$find("<%= radcombobox.ClientID %>") I get an error saying that object doesn't suppot this method.
I'm not at all familiar with the radcontrols and i;m not sure I'm doing this right. I got the control ID from the following html element:
<div class="RadComboBox RadComboBox_WebBlue" id="ctl00_CPH1_GridView1_gvReceivingTransactions_ctl03_gvSkidWeights_ctl02_ddlLocation" > and i tried:

var tbLocation = parent.rightFrame.document.$find("<%= ctl00_CPH1_GridView1_gvReceivingTransactions_ctl03_gvSkidWeights_ctl02_ddlLocation.ClientID %>");

Is my syntax incorrect or is the problem that I'm accesing the control from a different frame. If that's the problem what can I do to work around it?

Thanx. I Hope someone can help me.

ComboBox

answered on 19 Jan 2011

10 answers

762 views

Radgrid Drop Down Column

I may be wrong but it seems to me that the only way to populate a drop down column in a grid is with databinding. Is there a way to poopulate the items as follows:

combobox.items.add("First Item");
combobox.items.add("Second Item");
etc.

I don't need to populate from tables for each drop down column.

Regards, Lee

Grid

answered on 19 Jan 2011

1 answer

70 views

Edit cells with merged header.

Hi!
I'm having a problem with the templateColumn. I can have a merged header, but for some reason, there's no way I can edit the value of the items under that column. I've been reading as many post as I could, but no answer so far.
I've tried different approaches, but the last best I could do was this:

<telerik:RadGrid ID="RadGrid1" EnableAJAX="True" ShowStatusBar="true" runat="server" Skin="Default" BorderColor="#97A222" Width="95%"

AutoGenerateColumns="False" PageSize="16" AllowSorting="True" AllowMultiRowSelection="False"

AllowAutomaticDeletes="True" AllowAutomaticUpdates="True"

AllowPaging="False" AllowScroll = "True" GridLines="None" OnDetailTableDataBind="RadGrid1_DetailTableDataBind" OnNeedDataSource="RadGrid1_NeedDataSource">

<MasterTableView Width="100%" DataKeyNames="Name" AllowMultiColumnSorting="True">

<DetailTables>

<telerik:GridTableView DataKeyNames="Name" DataMember="Details" Width="100%" GridLines="Horizontal"

AllowAutomaticDeletes="True" AllowAutomaticUpdates="True"

Style="border-color: #d5b96a" CssClass="RadGrid2">

<Columns>

<telerik:GridEditCommandColumn UpdateText="Update" UniqueName="EditCommandColumn" CancelText="Cancel"

EditText="Edit">

<HeaderStyle Width="85px"></HeaderStyle>

</telerik:GridEditCommandColumn>

<telerik:GridBoundColumn SortExpression="Name" HeaderText="Name" ReadOnly = "True" HeaderButtonType="TextButton"

DataField="Name">

</telerik:GridBoundColumn>

<telerik:GridTemplateColumn UniqueName="TemplateColumn">

<HeaderTemplate>

<table id="Table1" cellspacing="1" cellpadding="1" width="300" border="1">

<tr>

<td colspan="2" align="center"><b>Revenue Growth Strategy</b></TD>

</tr>

<tr>

<td width="50%"><b>Drive organic growth</b></TD>

<td width="50%"><b>Global expansion</b></TD>

</TR>

</TABLE>

</HeaderTemplate>

<ItemTemplate>

<table id="Table2" cellspacing="1" cellpadding="1" width="300" border="1">

<tr>

<td width="50%"><%# DataBinder.Eval(Container.DataItem , "Drive organic growth")%></TD>

<td width="50%"><%# DataBinder.Eval(Container.DataItem, "Global expansion")%></TD>

</tr>

</table>

</ItemTemplate>

</telerik:GridTemplateColumn>

<telerik:GridBoundColumn SortExpression="Drive organic growth" HeaderText="Drive organic growth" HeaderButtonType="TextButton"

DataField="Drive organic growth">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn SortExpression="Global expansion" HeaderText="Global expansion" HeaderButtonType="TextButton"

DataField="Global expansion">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn SortExpression="Market new products and services" HeaderText="Market new products and services" HeaderButtonType="TextButton"

DataField="Market new products and services">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn SortExpression="Operational improvement" HeaderText="Operational improvement" HeaderButtonType="TextButton"

DataField="Operational improvement">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn SortExpression="Technology initiatives" HeaderText="Technology initiatives" HeaderButtonType="TextButton"

DataField="Technology initiatives">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn SortExpression="Customer convenience" HeaderText="Customer convenience" HeaderButtonType="TextButton"

DataField="Customer convenience">

</telerik:GridBoundColumn>

</Columns>

</telerik:GridTableView>

</DetailTables>

<Columns>

<telerik:GridBoundColumn SortExpression="Name" HeaderText="Name" HeaderButtonType="TextButton"

DataField="Name">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

I'll appreciate any help.

Grid

answered on 19 Jan 2011

20 answers

516 views

Error when building custom RadFilterDataFieldEditor

When creating an custom DataFieldEditor an error is thrown upon postback.
The custom class looks like (same implementation as the RadFilterTextFieldEditor)

    
            Public Class RadFilterMyTextFieldEditor  
        
                Inherits RadFilterDataFieldEditor  
        
                Protected Overrides Sub CopySettings(ByVal baseEditor As RadFilterDataFieldEditor)  
        
                    MyBase.CopySettings(baseEditor)  
        
                    Dim editor As RadFilterTextFieldEditor = TryCast(baseEditor, RadFilterTextFieldEditor)  
        
                    If (Not editor Is Nothing) Then  
        
                        Me.TextBoxWidth = editor.TextBoxWidth  
        
                    End If  
        
                End Sub  
        
                Public Overrides Function ExtractValues() As ArrayList  
        
                    Dim list As New ArrayList  
        
                    list.Add(Me._textBoxControl.Text)  
        
                    If Not MyBase.IsSingleValue Then  
        
                        list.Add(Me._secondTextBoxControl.Text)  
        
                    End If  
        
                    Return list  
        
                End Function  
        
                Public Overrides Sub InitializeEditor(ByVal container As Control)  
        
                    Me._textBoxControl = New TextBox  
        
                    Me._textBoxControl.CssClass = "rfText" 
        
                    Me._textBoxControl.Width = Unit.Pixel(Me.TextBoxWidth)  
        
                    container.Controls.Add(Me._textBoxControl)  
        
                    If Not MyBase.IsSingleValue Then  
        
                        MyBase.AddBetweenDelimeterControl(container)  
        
                        Me._secondTextBoxControl = New TextBox  
        
                        Me._secondTextBoxControl.CssClass = ("rfText")  
        
                        Me._secondTextBoxControl.Width = Unit.Pixel(Me.TextBoxWidth)  
        
                        container.Controls.Add(Me._secondTextBoxControl)  
        
                    End If  
        
                End Sub  
        
                Public Overrides Sub SetEditorValues(ByVal values As ArrayList)  
        
                    If (Not values Is Nothing) Then  
        
                        If (Not values.Item(0) Is Nothing) Then  
        
                            Me._textBoxControl.Text = (values.Item(0).ToString)  
        
                        End If  
        
                        If (Not MyBase.IsSingleValue AndAlso (Not values.Item(1) Is Nothing)) Then  
        
                            Me._secondTextBoxControl.Text = values.Item(1).ToString  
        
                        End If  
        
                    End If  
        
                End Sub  
        
                <DefaultValue("120"), NotifyParentProperty(True)> _  
        
                Public Property TextBoxWidth() As Integer  
        
                    Get  
        
                        Dim obj2 As Object = MyBase.ViewState.Item("TextBoxWidth")  
        
                        If (obj2 Is Nothing) Then  
        
                            Return 120  
        
                        End If  
        
                        Return CInt(obj2)  
        
                    End Get  
        
                    Set(ByVal value As Integer)  
        
                        MyBase.ViewState.Item("TextBoxWidth") = value  
        
                    End Set  
        
                End Property  
        
                ' Fields  
        
                Private _secondTextBoxControl As TextBox  
        
                Private _textBoxControl As TextBox  
        
            End Class

When using this on a web form like

    
                Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init  
        
                    Dim oMyTextFilter As New RadFilterMyTextFieldEditor  
        
                    oMyTextFilter.FieldName = "Company" 
        
                    RadFilter1.FieldEditors.Add(oMyTextFilter)  
        
                End Sub

The following error is thrown upon postback

    
            Exception Details: System.ArgumentNullException: Value cannot be null.  
        
            Parameter name: item  
        
            Source Error:   
        
            An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.    
        
            Stack Trace:   
        
            [ArgumentNullException: Value cannot be null.  
        
            Parameter name: item]  
        
               Telerik.Web.UI.RadFilterDataFieldEditorCollection.InsertInternal(Int32 index, RadFilterDataFieldEditor item) +77  
        
               Telerik.Web.UI.RadFilterDataFieldEditorCollection.Add(RadFilterDataFieldEditor item) +40  
        
               Telerik.Web.UI.RadFilterDataFieldEditorCollection.System.Web.UI.IStateManager.LoadViewState(Object state) +602  
        
               Telerik.Web.UI.RadFilter.LoadViewState(Object savedState) +155  
        
               System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +183  
        
               System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134  
        
               System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221  
        
               System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +134  
        
               System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +221  
        
               System.Web.UI.Page.LoadAllState() +312  
        
               System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1661

What goes wrong?
My intention is to create a custom editor with dropdown list boxes in stead of the regular text edits

Filter

answered on 19 Jan 2011

9 answers

464 views

How to avoid whole page postback when click the node of treeview in ComboBox

Code in aspx:

    
            <asp:UpdatePanel ID="upComboBox" runat="server">  
        
                            <ContentTemplate> 
        
                                <telerik:RadComboBox ID="rcb" runat="server" SkinID="Larger" Height="200px">  
        
                                    <ItemTemplate> 
        
                                        <telerik:RadTreeView ID="rtv" runat="server" OnNodeClick="rtv_NodeClick" 
        
                                            CausesValidation="false">  
        
                                        </telerik:RadTreeView> 
        
                                    </ItemTemplate> 
        
                                    <Items> 
        
                                        <telerik:RadComboBoxItem Selected="true" /> 
        
                                    </Items> 
        
                                </telerik:RadComboBox> 
        
                            </ContentTemplate> 
        
            </asp:UpdatePanel>

Code in aspx.cs

    
             protected void rtv_NodeClick(object sender, RadTreeNodeEventArgs e)  
        
             {  
        
                 rcb.Items[0].Value = e.Node.Value;  
        
                 rcb.Items[0].Text = e.Node.Text;  
        
             }

This method won't stop whole page postback when you trigger the rtv_NodeClick event

There somebody said, should put the updatepanel inside ComboBox like follows

    
              <telerik:RadComboBox ID="rcbConsigned" runat="server" SkinID="Larger" Height="200px">  
        
                                    <ItemTemplate> 
        
                                        <asp:UpdatePanel ID="up" runat="server">  
        
                                            <ContentTemplate> 
        
                                                <telerik:RadTreeView ID="rtvSubcon" runat="server" OnNodeClick="rtvSubcon_NodeClick" 
        
                                                    CausesValidation="false">  
        
                                                </telerik:RadTreeView> 
        
                                            </ContentTemplate> 
        
                                        </asp:UpdatePanel> 
        
                                    </ItemTemplate> 
        
                                    <Items> 
        
                                        <telerik:RadComboBoxItem Selected="true" /> 
        
                                    </Items> 
        
                                </telerik:RadComboBox>

This method can stop the whole page postback, but as ajax method, it won't change the value of radcombox.

As we were told ms-help://telerik.aspnetajax.radcontrols.2009.Q1/telerik.aspnetajax.radajax.2009.Q1/3rdparty.html

Controls that Are Not Compatible with RadAjaxManager Control

The following ASP.NET controls are not compatible with partial-page updates, and are therefore not supported as initiating or updated controls:

TreeView and Menu controls.
Web Parts controls. For more information, see ASP.NET Web Parts Controls.
FileUpload controls when they are used to upload files as part of an asynchronous postback.
GridView and DetailsView controls when their EnableSortingAndPagingCallbacks property is set to true. The default is false.
Login, PasswordRecovery, ChangePassword, and CreateUserWizard controls whose contents have not been converted to editable templates.
The Substitution control.

ComboBox

answered on 19 Jan 2011

1 answer

79 views

Formview/RadUpload

Do you have good example of RadUpload controls inside Formview Control with server side API?
When i upload file , i can find the control but when i save i could not find posted file.

Thanks,

Upload (Obsolete)

answered on 19 Jan 2011