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Shahin Rawther
295
Allow Copy along with bubbling click event from textbox in a CellValuePresenter to Grid
posted

Hi,

I have a xamgrid with cell value presenter as posted below. 

I tried to use the inbuilt Copy functionality but it seems to copy the Content of the cell rather than the displayed value and it also doesn't allow selecting a part of the text and copying it to the clipboard. I achieved this for a selected cell by binding the CTRL+C gesture.

Since the above solution is not providing me the functionality i want, I changed the CellValue presenter to display the content using a textbox (styled liked a textblock) so that users can copy all or part of the presented data from the cell.

Now i can selectively copy text from the cell, but if i click on the textbox area of the cell, the click is not registered with the grid. Now i have to be careful as to where i am clicking to get the intended behavior like highlighting the record or firing an event to fetch child records as a result of the click. 

How can I implement a solution where

  • Users can copy and paste all or part of the data from a cell
  • Highlight the cell as selected (Show some visual adorner like a dotted rectangle)
  • Highlight the record as selected (So even if a user is clicking on a cell the entire row has to be high lighted in addition to the fact the cell also has an adorned showing that it is the selected cell)
  • Fire the SelectedItemsChanged event in the grid

My Current Cell Value Presenter style below. This cell value presenter is attached to a unbound field which is generated dynamically and added to the field layout. Any help is greatly appreciated.

<Style x:Key="DynamicBackgroundCellStyle" TargetType="{x:Type igDP:CellValuePresenter}">

      <Setter Property="OverridesDefaultStyle" Value="True"/>
      <Setter Property="Foreground" Value="{DynamicResource Foreground}"/>
      <Setter Property="Template">
        <Setter.Value>
          <ControlTemplate TargetType="{x:Type igDP:CellValuePresenter}">
            <Grid Margin="5,0,5,0">
              <Grid.RowDefinitions>
                <RowDefinition/>
                <RowDefinition/>
              </Grid.RowDefinitions>
                <Grid>
                  <ContentPresenter Panel.ZIndex="1"
                        Margin="4"
                        VerticalAlignment="Center"
                        x:Name="contentPresenter">
                  <ContentPresenter.Style>
                    <Style TargetType="{x:Type ContentPresenter}">
                      <Setter Property="HorizontalAlignment" Value="Left"/>
                      <Style.Triggers>
                        <Trigger Property="Content"  Value="-">
                          <Setter Property="HorizontalAlignment" Value="Center"/>
                        </Trigger>
                      </Style.Triggers>
                    </Style>
                  </ContentPresenter.Style>
                  <ContentPresenter.Content>
                      <MultiBinding Converter="{StaticResource BucketDataToUtilizationConverter}" ConverterParameter="$">
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" />
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="DataContext.DataItem" />
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Content" />
                      </MultiBinding>
                    </ContentPresenter.Content>

                  <ContentPresenter.ContentTemplate>

                    <DataTemplate>

                      <TextBox IsReadOnly="True" Background="Transparent" Foreground="{DynamicResource Foreground}"

                                                            BorderThickness="0" Text="{Binding Mode=OneWay}" />

                    </DataTemplate>

                  </ContentPresenter.ContentTemplate>

                </ContentPresenter>
                  <Border Panel.ZIndex="0" HorizontalAlignment="Left">
                    <Border.Width>
                      <MultiBinding Converter="{StaticResource BucketDataToCellBackgroundWidthConverter}" ConverterParameter="-10">
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" />
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="DataContext.DataItem" />
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Content"/>
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Field.CellWidthResolved" />
                      </MultiBinding>
                    </Border.Width>
                    <Border.Background>
                      <LinearGradientBrush>
                        <GradientStop Offset="0" >
                          <GradientStop.Color>
                            <MultiBinding Converter="{StaticResource BucketDataToAlertColorConverter}">
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" />
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="DataContext.DataItem" />
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Content"/>
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Field.CellWidthResolved" />
                            </MultiBinding>
                          </GradientStop.Color>
                        </GradientStop>
                        <GradientStop Offset="0.5" >
                          <GradientStop.Color>
                            <MultiBinding Converter="{StaticResource BucketDataToAlertColorConverter}">
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" />
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="DataContext.DataItem" />
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Content"/>
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Field.CellWidthResolved" />
                            </MultiBinding>
                          </GradientStop.Color>
                        </GradientStop>
                        <GradientStop Offset="1" >
                          <GradientStop.Color>
                            <MultiBinding Converter="{StaticResource BucketDataToAlertColorConverter}" ConverterParameter="fade">
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" />
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="DataContext.DataItem" />
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Content"/>
                              <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Field.CellWidthResolved" />
                            </MultiBinding>
                          </GradientStop.Color>
                        </GradientStop>
                      </LinearGradientBrush>
                    </Border.Background>
                  </Border>
                </Grid>
              <TextBlock Grid.Row="1"
                    Margin="5,0,5,5"
                    Foreground="{DynamicResource Foreground}"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center">
                    <TextBlock.Text>
                      <MultiBinding Converter="{StaticResource HighWaterMarkConverter}" ConverterParameter="$">
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" />
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="Content" />
                        <Binding RelativeSource="{RelativeSource TemplatedParent}" Path="DataContext.DataItem" />
                      </MultiBinding>
                    </TextBlock.Text>
              </TextBlock>
            </Grid>
          </ControlTemplate>
        </Setter.Value>
      </Setter>
    </Style>

Thanks

Shahin