文本菜单中的上下文菜单粘贴未更新绑定元素值

Question

I'm binding a text box to a textblock, but it is not updated when I paste something using the context menu.

Following there is the XAML code for element binding:

<uc:CustomTextBox x:Name="txtBoxLastName"
                  Grid.Row="3"
                  Grid.Column="1"
                  Width="80"
                  Height="25"
                  HorizontalAlignment="Left" />

<TextBlock Grid.Row="4"
           Grid.Column="1"
           Width="100"
           Height="100"
           Text="{Binding Text,
                          ElementName=txtBoxLastName}" />

Context menu paste code:

this.SelectedText = Clipboard.GetText();

What's wrong with this code? Is there any other way to do the same ?

Regards.

Answer 1

Using the common Silverlight controls, the text pasted in the TextBox control is automatically pasted also in the TextBlock control.

I think the problem is in the code you're using to paste the text stored in the Clipboard, because you're setting the property SelectedText , when instead your TextBlock's Text property is bound to the Text property of the TextBox.

You can change the line from:

this.SelectedText = Clipboard.GetText();

to:

this.Text = Clipboard.GetText();

or, as second option, change the binding in your textblock from this:

Text="{Binding Text, ElementName=txtBoxLastName}"

to this:

Text="{Binding SelectedText, ElementName=txtBoxLastName}"