7
我已經創建了一個從文本框擴展的自定義水印文本框。控制模板的相同如下所示。文本框有時會丟失光標
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type controls:WaterMarkTextBox}">
<ControlTemplate.Resources>
<Storyboard x:Key="Storyboard1">
<ThicknessAnimationUsingKeyFrames Storyboard.TargetProperty="(FrameworkElement.Margin)"
Storyboard.TargetName="PART_FieldTextBlock">
<SplineThicknessKeyFrame KeyTime="0:0:0.15"
Value="0,0,10,0" />
</ThicknessAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Storyboard2">
<ThicknessAnimationUsingKeyFrames Storyboard.TargetProperty="(FrameworkElement.Margin)"
Storyboard.TargetName="PART_FieldTextBlock">
<SplineThicknessKeyFrame KeyTime="0:0:0.25"
Value="0,0,-500,0" />
</ThicknessAnimationUsingKeyFrames>
</Storyboard>
</ControlTemplate.Resources>
<Grid x:Name="PART_GridControl"
ClipToBounds="True"
Height="{TemplateBinding Height}"
Width="{TemplateBinding Width}">
<TextBlock x:Name="PART_PlaceHolderTextBlock"
Style="{StaticResource SWMLightTextBlockStyle}"
Foreground="#BDBBBB"
FontSize="{StaticResource SmallFontSize}"
Text="{TemplateBinding PlaceHolderText}"
VerticalAlignment="Center"
Margin="20,0,10,0" />
<Border Name="border"
CornerRadius="0"
Padding="2"
BorderThickness="1"
BorderBrush="DeepSkyBlue">
<ScrollViewer x:Name="PART_ContentHost"/>
</Border>
<TextBlock x:Name="PART_FieldTextBlock"
HorizontalAlignment="Right"
Foreground="#BDBBBB"
Margin="0,0,-500,0"
Style="{StaticResource SWMLightTextBlockStyle}"
FontSize="{StaticResource SmallFontSize}"
TextWrapping="Wrap"
Text="{TemplateBinding FieldText}"
VerticalAlignment="Center" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
但同時打字文本框進入到其被不具有光標的狀態,但到它具有1/2 chars.I的概率發生,我們可以鍵入不知道它是如何發生的。任何人都知道它是如何發生的?