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4 answers
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I can't seem to get rid of the extra space around RadVerticalLinearGauge. Is this a bug or am I missing a property?

Try this code:

<Grid>
    <Border Background="#FF1B1B1F" CornerRadius="0">
        <telerik:RadVerticalLinearGauge OuterBorderThickness="0" OuterBorderBrush="Green" Background="Red" telerik:StyleManager.Theme="Green">
            <telerik:VerticalLinearScale MajorTickBackground="DeepSkyBlue" MiddleTickBackground="DeepSkyBlue" MinorTickBackground="DeepSkyBlue" MajorTickOffset="-10" MiddleTickOffset="-10" MinorTickOffset="-10" Min="0" Max="100" LabelLocation="Inside" MajorTickLocation="Inside" MinorTickLocation="Inside" MiddleTickLocation="Inside" MiddleTicks="2" MinorTicks="1" LabelFormat="{}{0:F0} %" FontSize="20" Foreground="#FF9EABAA" Fill="{x:Null}">
                <telerik:VerticalLinearScale.Indicators>
                    <telerik:BarIndicator BorderBrush="{x:Null}" Value="100" Background="#FF323232"/>
                    <telerik:BarIndicator BorderBrush="{x:Null}" Value="70" Background="DeepSkyBlue"/>
                </telerik:VerticalLinearScale.Indicators>
            </telerik:VerticalLinearScale>
        </telerik:RadVerticalLinearGauge>
    </Border>
</Grid>

 

There is a black extra space around the red gauge object. Margin is 0 so that's not the culprit. I added OuterBorderThickness and OuterBorderBrush for demonstration purpose. If I set OuterBorderThickness to 10 the green border is drawn over the black area. Not sure if they are related but something to start with.

Shouldn't the red area fill the entire border object with the above property values? Especially if you remove both OuterBorderThickness and OuterBorderBrush property values from the code.

 

 

Sia
Telerik team
 answered on 15 Feb 2018
1 answer
127 views

In my application I bind the value of a textbox to properties of the selected item of a grid.

When do something like (note: grdParts is defined elsewhere and has the default SelectionUnit = FullRow)

<TextBox Text="{Binding ElementName=grdParts, Path=SelectedItem.OrderCode}" />

the error list shows the error 'SelectedItem' is not accessible. But the application compiles fine and works as intended. My biggest problem is that these 'fake' errors obscure real problems.

A while ago I tackled this problem by adding the ElementName in the Path, but recently (because I updated to the newest Telerik version?) this stopped working, so I had to revert back to this way of binding.

What is wrong with this binding?

Boardy
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Veteran
 answered on 15 Feb 2018
1 answer
115 views

Hi,

I'm trying to apply the RowReorderBehavior (example xaml-sdk) in a hierarchical-gridview and wondering how to enable to childgrid for drah-and-drop.

 <controls:GridView
          x:Name="GridView"
          ItemsSource="{Binding Items}">
          <telerik:RadGridView.ChildTableDefinitions>
            <telerik:GridViewTableDefinition />
          </telerik:RadGridView.ChildTableDefinitions>
          <telerik:RadGridView.HierarchyChildTemplate>
            <DataTemplate>
              <controls:GridView
                x:Name="ChildGrid"
                AllowDrop="True"
                Drop="UIElement_OnDrop"
                ItemsSource="{Binding InvoiceLines}"
                RowIndicatorVisibility="Visible"
                SelectedItem="{Binding CurrentChild, Mode=TwoWay}">
                <controls:GridView.Resources>
                  <DataTemplate x:Key="DraggedItemTemplate">
                    <StackPanel>
                      <StackPanel Orientation="Horizontal">
                        <TextBlock Text="Dragging:" />
                        <TextBlock FontWeight="Bold" Text="{Binding CurrentDraggedItem}" />
                      </StackPanel>
                      <StackPanel Orientation="Horizontal">
                        <TextBlock
                          MinWidth="45"
                          FontWeight="Bold"
                          Text="{Binding CurrentDropPosition}" />
                        <TextBlock Foreground="Gray" Text=", (" />
                        <TextBlock Text="{Binding CurrentDraggedOverItem}" />
                        <TextBlock Foreground="Gray" Text=")" />
                      </StackPanel>
                    </StackPanel>
                  </DataTemplate>
                </controls:GridView.Resources>
                <controls:GridView.RowStyle>
                  <Style TargetType="telerik:GridViewRow">
                    <Setter Property="telerik:DragDropManager.AllowDrag" Value="True" />
                    <Setter Property="telerik:DragDropManager.TouchDragTrigger" Value="TapAndHold" />
                  </Style>
                </controls:GridView.RowStyle>

 

in the code behind is want to enable the childgrid like: RowReorderBehavior.SetIsEnabled(childgrid, isEnabled);

My problem is how to find the dependencyobject for the childgrid. Trying something like this...

this.GridView.HierarchyChildTemplate.FindName("ChildGrid", ????)

JKattestaart
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 answered on 15 Feb 2018
5 answers
948 views
I am trying to bind a dynamically generated menu. I have set up the following style:


<
Style x:Key="MenuItemStyle" TargetType="telerik:RadMenuItem">
        <Setter Property="Header" Value="{Binding Header}" />
        <Setter Property="IsCheckable" Value="{Binding IsCheckable}" />
         
        <Setter Property="IsSeparator" Value="{Binding IsSeparator}" />
        <Setter Property="IsChecked" Value="{Binding IsChecked}" />
        <Setter Property="Icon" Value="{Binding IconUrl}" />
         
        <Setter Property="ItemsSource" Value="{Binding SubMenuItems}" />
        <Setter Property="Command" Value="{Binding MenuItemClicked}" />
        <Setter Property="CommandParameter" Value="{Binding RelativeSource={RelativeSource Self}}" />
      
        <Setter Property="IconTemplate" >
            <Setter.Value>
                <DataTemplate>
                    <Image Source="{Binding}" Stretch="Fill"/>
                </DataTemplate>
            </Setter.Value>
        </Setter>
 
    </Style>
</Window.Resources>
This Generates the menus just fine and they appear exactly as I expect HOWEVER the command does nothing ()i.e. the MENUCLICKED. I have set up the command MenuItemClicked in the ViewModel and correct instantiated it as an ICOMMAND but it never fires the command. What am I missing??. The command is set up as follows:
public ICommand MenuItemClicked { get; set; }
 
MenuItemClicked = new Command<RadMenuItem>(c =>
          {
              ....executesomeciodec);
          });
 I must have missed something but for the life of me I cannot see what. I know it is bound correctly as the menus are getting populated with the correct properties, icons and layouts.

Please advise - thank you


​
Vladimir Stoyanov
Telerik team
 answered on 14 Feb 2018
1 answer
78 views

Hi Progress Telerik,

I have selected an GanttTask in GanttView. The selection is OK. But while exporting the whole GanttArea it is showing with different Task Selection. Please find the attachment for a clear understanding and kindly provide me the solution. I have used the below code which is available in https://github.com/telerik/xaml-sdk/tree/master/GanttView/PrintingAndExporting

 

var exportSettings = new ImageExportSettings(new Size(816, 1056), true, GanttArea.AllAreas);

using (var export = ganttView.ExportingService.BeginExporting(exportSettings))
{
    exportImages = export.ImageInfos.ToList().Select(info => info.Export());
}

 

Thanks and Regards,

Muhammad Azhar Shah

MSC Technology

Martin Ivanov
Telerik team
 answered on 14 Feb 2018
1 answer
195 views

I am getting a null reference exception whenever assigning to the RadPdfViewer FixedDocumentPresenter property. The last line of code below is where an exception is thrown. I have also tried to set the FixedDocumentPresenter property by using pdfViewer.GetRegisteredPresenter(), but I get the same exception. I need the presenter to be set so I can get coordinates of the PDF but the value is null.

            pdfViewer = new RadPdfViewer();
            string pdfFilePath = "C:\\temp\\GeneratedDocument.pdf";
            MemoryStream stream = new MemoryStream();
            using (Stream input = File.OpenRead(pdfFilePath))
            {
                input.CopyTo(stream);
            }
            FormatProviderSettings settings = new FormatProviderSettings(ReadingMode.OnDemand);
            PdfFormatProvider provider = new PdfFormatProvider(stream, settings);
            RadFixedDocument doc = provider.Import();
            pdfViewer.Document = doc;
            pdfViewer.MouseDoubleClick += PdfViewer_MouseDoubleClick;

            var myPresenter = new FixedDocumentSinglePageViewPresenter();
            pdfViewer.FixedDocumentPresenter = myPresenter;

 

EXCEPTION:Error Message: Object reference not set to an instance of an object.

   at Telerik.Windows.Controls.FixedDocumentViewerBase.InitializeFixedDocumentPresenter(IFixedDocumentPresenter releasedPresenter, IFixedDocumentPresenter presenter)
   at Telerik.Windows.Controls.FixedDocumentViewerBase.set_FixedDocumentPresenter(IFixedDocumentPresenter value)

 

Polya
Telerik team
 answered on 14 Feb 2018
1 answer
105 views
Is there a way to customize FilterControls on a per column basis?

Thanks in advance,
Steve 
Martin
Telerik team
 answered on 14 Feb 2018
2 answers
84 views

Would it be possible to reorder the columns by dragging as in the GridView?

Thanks in advance,
Steve

Martin
Telerik team
 answered on 14 Feb 2018
1 answer
627 views

Hi!

I have RadGridView, and I need to get Header cell for all columns. How to get header cells (not content) in RadGridView.

Thanks.

Dinko | Tech Support Engineer
Telerik team
 answered on 14 Feb 2018
3 answers
175 views

Hello,

I am new to both XAML and Telerik. I am trying to implement some functionality to an existing application that will allow me to drag and drop a tree node item to a data grid. I have been looking at the example here (https://github.com/telerik/xaml-sdk/tree/master/TreeView/DragDropTreeViewToControls) and it seems very similar to what I need except a data grid instead of a list box. It should behave in the following way:

1) Allow drag and drop of tree node items ONLY to the left column cell(s) of an adjacent data grid (the other column will be prepopulated with data)

2) DISABLE drap and drop (and reorder, etc) within the RadTreeView itself.

 

If possible, please attach an example solution in a zip file.

Thank you in advance.

Bardon
Top achievements
Rank 1
 answered on 14 Feb 2018
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