C# 在 WPF 应用程序中按下 Return 时，如何模拟 Tab 键按下？
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How do I simulate a Tab key press when Return is pressed in a WPF application?
提问by Dante1986
In a WPF application, i have a window that has a lot of fields. When the user uses the TAB key after filling each field, windows understands that it moves on to the next. This is pretty know behavior.
在 WPF 应用程序中，我有一个包含很多字段的窗口。当用户在填写每个字段后使用 TAB 键时，windows 会理解它会移动到下一个。这是非常熟悉的行为。
Now what I want to to, is make it simulate the TAB key, when in fact the RETURN gets hit.
So in my WPF xaml I added imply KeyDown="userPressEnter"
现在我想要做的是让它模拟 TAB 键，而实际上 RETURN 被击中。所以在我的 WPF xaml 中，我添加了暗示KeyDown="userPressEnter"
And in the code behind it:
在它背后的代码中：
private void userPressEnter(object sender, KeyEventArgs e)
{
if (e.Key == Key.Return)
{
e.Key = Key.Tab // THIS IS NOT WORKING
}
}
Now, obviously this is not working. But what I don't know is, how DO I make this work?
现在，显然这是行不通的。但我不知道的是，我如何使这项工作？
EDIT 1 ==> FOUND A SOLUTION
编辑 1 ==> 找到解决方案
I found something that helped me out =)
我找到了一些帮助我的东西 =)
private void userPressEnter(object sender, KeyEventArgs e)
{
if (e.Key == Key.Return)
{
TraversalRequest request = new TraversalRequest(FocusNavigationDirection.Next);
MoveFocus(request);
}
}
This way the Focus moves on the the next it can find :)
这样，焦点就会移动到它可以找到的下一个:)
采纳答案by Nick Bray
You can look at a post here: http://social.msdn.microsoft.com/Forums/en/wpf/thread/c85892ca-08e3-40ca-ae9f-23396df6f3bd
您可以在此处查看帖子：http: //social.msdn.microsoft.com/Forums/en/wpf/thread/c85892ca-08e3-40ca-ae9f-23396df6f3bd
Here's an example:
下面是一个例子：
private void textBox1_PreviewKeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
TraversalRequest request = new TraversalRequest(FocusNavigationDirection.Next);
request.Wrapped = true;
((TextBox)sender).MoveFocus(request);
}
}
回答by Kevin
I think you should use that to simulate TAB :
我认为你应该用它来模拟 TAB ：
SendKeys.Send("{TAB}");
Instead of
代替
e.Key = Key.Tab
Sources : http://msdn.microsoft.com/en-us/library/system.windows.forms.sendkeys.send.aspx
来源：http: //msdn.microsoft.com/en-us/library/system.windows.forms.sendkeys.send.aspx
回答by ecklerpa
protected override bool ProcessDialogKey(Keys keyData)
{
System.Diagnostics.Debug.WriteLine(keyData.ToString());
switch (keyData)
{
case Keys.Enter:
SendKeys.Send("{TAB}");
break;
}
base.ProcessDialogKey(keyData);
return false;
}
回答by sasch
Use Method SelectNextControl of your Form
使用 Form 的 SelectNextControl 方法
回答by stuicidle
SendKeys.Send or SendKeys.SendWait will not work in a WPF application, so to answer the original question
SendKeys.Send 或 SendKeys.SendWait 在 WPF 应用程序中不起作用，因此要回答原始问题
if (e.Key == Key.Return)
{
KeyEventArgs tabPressEventArgs = new KeyEventArgs(Keyboard.PrimaryDevice, Keyboard.PrimaryDevice.ActiveSource, 0, Key.Tab) { RoutedEvent = Keyboard.KeyDownEvent };
InputManager.Current.ProcessInput(tabPressEventArgs);
}
回答by ???
How about make SendKeys Class Working like Winforms.SendKeys
如何让 SendKeys 类像 Winforms.SendKeys 一样工作
public static class SendKeys
{
public static void Send(Key key)
{
if (Keyboard.PrimaryDevice != null) {
if (Keyboard.PrimaryDevice.ActiveSource != null) {
var e1 = new KeyEventArgs(Keyboard.PrimaryDevice, Keyboard.PrimaryDevice.ActiveSource, 0, key) { RoutedEvent = Keyboard.KeyDownEvent };
InputManager.Current.ProcessInput(e1);
}
}
}
}
回答by Saad Lembarki
I think the best solution is:
我认为最好的解决办法是：
var ue = e.OriginalSource as FrameworkElement;
if (e.Key == Key.Return)
{
e.Handled = true;
ue.MoveFocus(new TraversalRequest(FocusNavigationDirection.Next));
}
