Questions on UI for WPF Forum

1 answer

110 views

Rad DatePicker is not working in latest built

Hi,
I have updated all the new referneces and lost date picker, and string formatters. Also there is an issue in Rad Girdview . Should I revert back to previous version?

DatePicker

answered on 08 Sep 2010

1 answer

138 views

Binding error using RadDateTimePicker

When i put a datetimepicker on my window,
I see following error appearing in my output window :

System.Windows.Data Error: 4 : Cannot find source for binding with reference 'ElementName=PART_DropDownButton'. BindingExpression:Path=IsMouseOver; DataItem=null; target element is 'ButtonChrome' (Name='ButtonChrome'); target property is 'RenderMouseOver' (type 'Boolean')

once for every raddatetimepicker I use, this appears to be an telerik - interal error, since i didnt do any binding on the control yet.

I am using Telerik build 2010.2.714.40

DateTimePicker

answered on 08 Sep 2010

9 answers

493 views

GridViewComboBoxColumn Selected Value

Hi,
is there Selected Value in the GridViewComboBoxColumn ?
Best regards
Ehud

GridView

answered on 08 Sep 2010

1 answer

231 views

Virtialized ComboBox TextSearch Filtering does not work

I have a RadComboBox that is bound to a collection of about 1500 items. The ComboBox is searchable with filtering.

Everything was working as expected, except it was really slow to load.

I Added the VirtualizingStackPanel and this gave me the speed required for the app and text searching is working. However, the ComboBox is no longer filtering the results.

Here is my code:

<telerik:RadComboBox Grid.Column="1"

IsEditable="True"

TextSearchMode="StartsWith"

telerik:TextSearch.TextPath="Description"

IsFilteringEnabled="True"

OpenDropDownOnFocus="True"

ItemsSource="{Binding Fields}"

SelectedItem="{Binding SelectedField.Field, Mode=TwoWay}">

<telerik:RadComboBox.ItemsPanel>

<ItemsPanelTemplate>

<VirtualizingStackPanel />

</ItemsPanelTemplate>

</telerik:RadComboBox.ItemsPanel>

</telerik:RadComboBox>

I'm using the latest version of the control (Q2 2010 SP1).

Any help would be greatly appreciated.

ComboBox

answered on 08 Sep 2010

3 answers

664 views

Text Filtering and item Selection

I'm using a RadComboBox with text filtering, it works fine except for one small case.

When I start typing into the combo box to filter its items, if I use the keyboard to highlight and press enter on an item, the text that I typed will be replaced with the complete text of the item that I selected. This does not happen though in a particular case. If I partially type in the text of an item and then use the mouse to click on the item I want in the resulting filtered list, the text in the combo box will remain the partially typed in value that I entered, instead of being replaced with the complete text from the item I selected.

How do I get the combo box to behave the same in both cases (mouse & keyboard) so that the text of the selected item always replaces the text the user typed in?

Here's how I'm setting up my combo box in case I'm simply lacking a proper setting. I was able to duplicate this behavior on the Telerik online demo's page.

<telerik:RadComboBox Grid.Column="1" Grid.Row="1" Margin="5,1,5,1"

ItemsSource="{Binding AvailableLookupGroups}"

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

CanAutocompleteSelectItems="True"

CanKeyboardNavigationSelectItems="True"

IsEditable="True"

IsFilteringEnabled="True"

TextSearchMode="Contains"

EmptyText="Select a lookup..."

OpenDropDownOnFocus="True"

ClearSelectionButtonVisibility="Visible"

ClearSelectionButtonContent="Clear"

DisplayMemberPath="LookupName"/>

ComboBox

answered on 07 Sep 2010

1 answer

82 views

zooming and scrolling.

Hi,
Is zooming and scrolling is available only if series mapping is used? I am not able to get it working. Here is my code.

Thank you

        ChartArea3.DefaultView.ChartArea.DataSeries.Clear()
 
 
        For Each itm As ItemSumm In itemsList
            Dim series As New DataSeries()
            series.Definition = New LineSeriesDefinition()
            series.Definition.ShowItemLabels = True
            series.Definition.ShowItemToolTips = True
            series.Add(New DataPoint() With {.YValue = Math.Abs(itm.Amount), .XCategory = Format(itm.aptDate, "dd-MMM"), .LegendLabel = itm.aptCode})
            series.LegendLabel = itm.aptCode
            series.Definition.ItemLabelFormat = "#Y{C2}"
            series.Definition.ItemToolTipFormat = "#LEGENDLABEL" & Chr(13) & "#Y{C2}" & Chr(13) & "#XCAT"
            ChartArea3.DefaultView.ChartArea.DataSeries.Add(series)
        Next
        Dim zoomSettings As New ZoomScrollSettings()
        ChartArea3.SamplingSettings.SamplingThreshold = 10
        zoomSettings.MinZoomRange = 10
        zoomSettings.RangeEnd = 30
        zoomSettings.RangeStart = 20
        zoomSettings.ScrollMode = ScrollMode.ScrollAndZoom
        ChartArea3.DefaultView.ChartArea.ZoomScrollSettingsX = zoomSettings

Chart

answered on 07 Sep 2010

1 answer

226 views

Hide frame and headers

How can I hide (and show) frame and headers by code. See attached picture.

I want my usercontrols to be "movable" but not showing the frame of Docking control (more than when app is is in "move controls mode")

Docking

answered on 07 Sep 2010

1 answer

86 views

Unable to build soultionn Q2 2010

I am using VS 2010 and am unable to build the Q2 2010 ExamplesCS_WPF solution.
Attached is an image of the errors

General Discussions

answered on 07 Sep 2010

3 answers

459 views

How To Hide CheckBox For Specific Rows

Hi

I have a GridViewCheckBox column which is created dynamically at runtime. I need to hide the checkboxes for particular rows based on a condition. I have seen some samples using cell template in XAML but I did not find any sample to do it using code behind or which suits this scenario. Here is the code

GridViewCheckBoxColumn tempCheckBoxColumn;

foreach (PermissionValue permissionValue in employeeRecords.FirstOrDefault().RolePermission)

{

tempCheckBoxColumn = new GridViewCheckBoxColumn()

{

Header = permissionValue.PermissionTypeDescription

,

UniqueName = permissionValue.PermissionTypeDescription

,

DataMemberBinding = new Binding("RolePermission[" + i + "].Value") { Mode = BindingMode.TwoWay }

,

DataType = typeof(bool)

};

tempDataColumn.IsReadOnly = false;

this.grid.Columns.Add(tempCheckBoxColumn);

i++;

}

I need to hide the checkbox for some rows based on permissionValue.IsVisible value.

Regards
Kiran

GridView

answered on 07 Sep 2010

6 answers

185 views

[Solved] SelfReference Hierarchy Problem With Dynamic Columns

Hi

I am implementing self reference hierarchy and i have used the code below which works fine for default columns.

<telerik:RadGridView x:Name="RadGridView1"

DataLoading="RadGridView1_DataLoading" RowLoaded="RadGridView1_RowLoaded" GridLinesVisibility="Horizontal"

CanUserFreezeColumns="False" IsReadOnly="True" AutoGenerateColumns="False" Margin="10">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding TaskId}" />

<telerik:GridViewDataColumn Header="Task Name" DataMemberBinding="{Binding TaskName}" />

<telerik:GridViewDataColumn Header="Read">

<telerik:GridViewColumn.CellTemplate>

<DataTemplate>

<CheckBox x:Name="checkBoxRead" IsChecked="{Binding Read}" />

</DataTemplate>

</telerik:GridViewColumn.CellTemplate>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn Header="Write">

<telerik:GridViewColumn.CellTemplate>

<DataTemplate>

<CheckBox x:Name="checkBoxWrite" IsChecked="{Binding Write}" />

</DataTemplate>

</telerik:GridViewColumn.CellTemplate>

</telerik:GridViewDataColumn>

</telerik:RadGridView.Columns>

<telerik:RadGridView.FilterDescriptors>

<telerik:FilterDescriptor Member="ParentTaskId" Operator="IsEqualTo" Value="0"/>

</telerik:RadGridView.FilterDescriptors>

<telerik:RadGridView.ChildTableDefinitions>

<telerik:GridViewTableDefinition>

<telerik:GridViewTableDefinition.Relation >

<telerik:TableRelation IsSelfReference="True" >

<telerik:TableRelation.FieldNames>

<telerik:FieldDescriptorNamePair

ParentFieldDescriptorName="TaskId"

ChildFieldDescriptorName="ParentTaskId" />

</telerik:TableRelation.FieldNames>

</telerik:TableRelation>

</telerik:GridViewTableDefinition.Relation>

</telerik:GridViewTableDefinition>

</telerik:RadGridView.ChildTableDefinitions>

</telerik:RadGridView>

I have a problem when I add dynamic columns columns are showing at rool level but does not get added at child node level. If you notice in the screenshot RolePermissions[0], RolePermissions[1], RolePermissions[2] are dynamic columns. I have attached the screenshot. Is there a simple way to fix it please suggest.

Regards
Kiran

GridView

answered on 07 Sep 2010