Questions on UI for WPF Forum

4 answers

287 views

I have a WPF page with a RadGridView, and i want to change the column headers of this grid at runtime beacuse my application is bilingual, i tiried the following code but the headers dose not changed.

<

telerik:RadGridView Name="gvEmployees" Margin="2" telerik:StyleManager.Theme="Office_Blue" AutoGenerateColumns="False" HorizontalAlignment="Stretch" ColumnsWidthMode="Fill" ShowGroupPanel="False" IsReadOnly="True">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberPath="Employee_NO" Header="Employee NO."/>

<telerik:GridViewDataColumn DataMemberPath ="National_ID" Header="National ID"/>

<telerik:GridViewDataColumn DataMemberPath="Full_Name_Ar" Header="Name Ar"/>

<telerik:GridViewDataColumn DataMemberPath="Full_Name_En" Header="Name En"/>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

Private Sub gvEmployees_DataLoaded(ByVal sender As Object, ByVal e As System.EventArgs) Handles gvEmployees.DataLoaded

gvEmployees.Columns(0).Header =

"Test Change"

End Sub

GridView

answered on 05 Oct 2009

3 answers

66 views

Testpartner is unable to identify Telerik Tree view items.

We are using Telerik Tree control in our project. We are doing Automation by Testpartner Tool. Testpartner doesn't support directly to recognize Telerik Tree control. So we are using Telerik Tree view reference in Testpartner tool for accessing/fetching data from Tree view. By late binding unable to get tree items.
Need your suggestions forTestpartner to identify Telerik Tree view items.

TreeView

answered on 05 Oct 2009

1 answer

164 views

drag/drop crash, maybe a DragAndDropManager bug?

Hi

I think I found a bug involving drag/drop on the radscheduler.
The synopsis is with RadPanel and RadScheduler. I drag an item from the panel and drop it on the scheduler and build an Appointment
It's working fine in general.

But if I slowly move the drag cue on an existing Appointment, immediatly when the cursor moves on the text displayed, the DragAndDropManager crashes. It works fine if I don't display Appointment.Subject.

I was able to solve the issue by creating an appointment template like this:

</Border>

</DataTemplate>

But I can't see any reason this solves the problem.
Please find bellow the crash report provided par VS if it may help.

My system is .NET 3.5, Windows XP Pro French.
---------------------------------

System.NullReferenceException was unhandled by user code
Message="La référence d'objet n'est pas définie à une instance d'un objet."
Source="Telerik.Windows.Controls"
StackTrace:
       à Telerik.Windows.Controls.DragDrop.RadDragAndDropManager.<FindDropZones>b__2(HitTestResult el) dans c:\Builds\WPF_Scrum\Core_WPF_2009_Q2_SP1\Sources\Development\Core\Controls\DragDrop\RadDragAndDropManager.cs:ligne 1148
       à System.Windows.Media.Visual.HitTestPointInternal(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters hitTestParameters)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTestPoint(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, PointHitTestParameters pointParams)
       à System.Windows.Media.Visual.HitTest(HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, HitTestParameters hitTestParameters)
InnerException:

DragAndDrop

answered on 05 Oct 2009

3 answers

142 views

TextBoa with aggregate function in gridViewCell

I am trying to show textbox in grid cell performing aggregate function.
These underneath Xaml show textboxes but while editing value in textbox,textbox disappear on double-click and when done with editing it re-appear again.and aggregate functions seem to work sometime.

Please help me..hoe to achieve textboxes in a gridcell with aggrgate functionality for that datacolumn

<telerik:GridViewDataColumn Header="Term Leased" ToolTip="Term Leased" HeaderTextAlignment="Center" DataMemberBinding="{Binding TERM_LEASED}" IsReadOnly="False" >
<telerik:GridViewColumn.CellTemplate>
                                        <DataTemplate>
                                            <TextBox HorizontalAlignment="Center" VerticalAlignment="Top" Width="40" x:Name="TxtTermLeased" Margin="5,0" Text="{Binding TERM_LEASED}" >

                                            </TextBox>
                                        </DataTemplate>
                                    </telerik:GridViewColumn.CellTemplate>
                                    <telerik:GridViewDataColumn.AggregateFunctions>
                                        <telerik:SumFunction Caption="Term Leased: " SourceField="TERM_LEASED" />
                                    </telerik:GridViewDataColumn.AggregateFunctions>
                                </telerik:GridViewDataColumn>

GridView

answered on 05 Oct 2009

7 answers

511 views

Number of Rows

Is there a practical limit to the number of rows in a GridView? I tried putting 4k in and get a memory exception. If I limit to 1k rows it works but I can see the system memory take a steep rise each time I refresh the grid. I have a similar application in WinForms and I can load 4k rows easily with no impact on system performance.

GridView

answered on 02 Oct 2009

2 answers

434 views

[Solved] Custom Item Template and Data Table Binding

I am attempting to create a Custom Item Template for my carousel that is bound to a datatable. The problem is that when I do the below XAML code, it displays System.DataRow.View or something like that instead of the actual data. I think it has something to do with not defining my data type. What should I put in the DataType property for my DataTemplate in the case that it is bound to a datatable?

    
            <Grid.Resources> 
        
                        <DataTemplate DataType="">  
        
                            <Border Background="LightSlateGray" Padding="10">  
        
                                <Grid> 
        
                                    <Grid.ColumnDefinitions> 
        
                                        <ColumnDefinition Width="60" /> 
        
                                        <ColumnDefinition Width="*" /> 
        
                                    </Grid.ColumnDefinitions> 
        
                                    <Grid.RowDefinitions> 
        
                                        <RowDefinition Height="20" /> 
        
                                        <RowDefinition Height="*" /> 
        
                                    </Grid.RowDefinitions> 
        
                                    <TextBlock Grid.Column="0" Grid.Row="0" Text="DocumentMasterID">  
        
                                        <TextBlock.TextDecorations> 
        
                                            <TextDecoration Location="Underline" /> 
        
                                        </TextBlock.TextDecorations> 
        
                                    </TextBlock> 
        
                                    <TextBlock Grid.Column="0" Grid.Row="1" Text="{Binding Path=Data[DocumentMasterID]}" /> 
        
                                    <TextBlock Grid.Column="1" Grid.Row="0" Text="CleanLeadsID">  
        
                                        <TextBlock.TextDecorations> 
        
                                            <TextDecoration Location="Underline" /> 
        
                                        </TextBlock.TextDecorations> 
        
                                    </TextBlock> 
        
                                    <TextBlock Grid.Column="1" Grid.Row="1" Text="{Binding Path=Data[CleanLeadsID]}" /> 
        
                                </Grid> 
        
                            </Border> 
        
                        </DataTemplate> 
        
                    </Grid.Resources>

Carousel

answered on 02 Oct 2009

5 answers

708 views

[Solved] About SelectionChanged Event

Hi, I've been confused by a problem. First, I set RadGridView.ItemSource with a ObservableCollection and selected a row. Then I removed an item from ObservableCollection, the RadGridView.SelectedItem changed to null and did't trigger SelectionChanged Event. Is that by desgin? Thanks.

Version: Q2 2009.2.813.35

GridView

answered on 02 Oct 2009

1 answer

182 views

SelectionChanged and MouseLeftButtonUp event

Hello,

Version: 2009.2.911.35 .

I defined three events:

RadGridView1_SelectionChanged
RadGridView1_MouseLeftButtonUp
RadGridView1_MouseUp

Because the "SelectionChanged" event, left click does not fire the other two events (only right click).

Is this by design ?

Thanks.

GridView

answered on 02 Oct 2009

1 answer

94 views

Exporting GridView with columns created in code.

Hello,

I have a problem with exporting RadGridView using ToCsv() andToExcelML() methods.

While using AutoGenerateColumns property set to true everything works fine.

However, when I'm trying to create columns in code in such a way:

    
              Telerik.Windows.Controls.GridViewDataColumn c1 = new Telerik.Windows.Controls.GridViewDataColumn();
 
              c1.Header = "Name";
 
              c1.CellTemplate = (DataTemplate)this.Resources["NameColumnTemplate"];
 
              radGridView.Columns.Add(c1);

with DataTemplate defined in XAML:

    
              <DataTemplate x:Key="NameColumnTemplate">
 
              <TextBlock Text="{Binding Path=Name}"/>
 
              </DataTemplate>

In this case everything looks fine and RadGridView displays columns properly, but ToCsv() methods creates a string consist only of white spaces.

Is there any solution to this problem?

Regards

GridView

answered on 02 Oct 2009

1 answer

148 views

BringDataItemIntoView

Hi
I have a grid which I add rows to
when there is a vertical scroll
I want to see the added row
so I use

    
            gvSystemTables.SelectedItem = gvSystemTables.Items[System.Convert.ToInt32(gvSystemTables.Items.Count) - 1];  
        
            gvSystemTables.BringDataItemIntoView(gvSystemTables.Items[System.Convert.ToInt32(gvSystemTables.Items.Count) - 1]);

the problem is
when the grid does not have scroll
after I add a row the grid scrolls down
although there is enugh place and no need to scroll
any idea?

GridView

answered on 02 Oct 2009