Question

我有一个带有此控件的窗口。

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition />
        <RowDefinition />
        <RowDefinition />
    </Grid.RowDefinitions>
    ///elemnts in row 0
    <StackPanel Grid.Row="1">
        <ToolBar x:Name="Toolbar">
            <Label Content="TextPattern" />
            <ComboBox></ComboBox>
            <Button  Command="{Binding ScanCommand}">
                <Image Source="/Images/sacn.png"></Image>
            </Button>
            <Button Command="{Binding FaxCommand}" x:Name="FaxButton" PreviewKeyDown="FaxButton_PreviewKeyDown">
                <Image Source="/Images/fax.png"></Image>
            </Button>
        </ToolBar>
        <TextBox Width="{Binding ElementName=Toolbar,Path=ActualWidth}" x:Name="BodyTextBox" Focusable="True" TextWrapping="Wrap" AcceptsReturn="True" Text="{Binding Body}"></TextBox>
    </StackPanel>
    <StackPanel Orientation="Horizontal" Grid.Row="2" >
        <Button Content="Save" Command="{Binding SaveCommand}"></Button>
        <Button Content="Cancel" Command="{Binding CancelCommand}"></Button>
    </StackPanel>
</Grid>

当我使用tab键获得焦点时，它会在按下传真按钮后转到保存按钮。但我想去BodyTextbox。

我使用PreviewKeyDown进行设定焦点。

 private void FaxButton_PreviewKeyDown(object sender, KeyEventArgs e)
    {
        if(e.Key==Key.Tab)
        {
            BodyTextBox.Focus();
            BodyTextBox.SelectAll();
            FocusManager.SetFocusedElement(this, BodyTextBox);
        }
    }

但不要设置焦点。

Answer 1

加载UserControl或Windowcontrol时：请在UserCOntrol_Load事件中写下这个：

Dispatcher.BeginInvoke（System.Windows.Threading.DispatcherPriority.Input，

                      new Action(delegate ()

                      {
                          BodyTextBox.Focus();  // Set Logical Focus

                      Keyboard.Focus(BodyTextBox); // Set Keyboard Focus

                  }));

它会自动对焦n你也可以在没有按任何标签的情况下从键盘上写内容..

希望这对你有用..

谢谢，普利文

Answer 2

删除PreviewKeyDown事件并在工具栏中添加KeyboardNavigation.TabNavigation =“Continue”

 <ToolBar x:Name="Toolbar" KeyboardNavigation.TabNavigation="Continue">

如何将焦点设置为文本框

2 个答案: