/// <summary>开始编辑控件的名称,资源在控件加载完毕后才有效</summary>
public void HeaderEdit(CancelEditEventHandler EditHeaderClosing)
{
TextBox textBox = GetTemplateChild("PART_HeaderEdit") as TextBox;
if (textBox != null)
{
textBox.Visibility = Visibility.Visible;
textBox.Text = (string)Header;
textBox.SelectAll();
textBox.Focus();
Window parentWindow = Window.GetWindow(textBox);
MouseButtonEventHandler parentMouseDown = null;
parentMouseDown = (sender, e) =>
{
if (parentWindow.GetElementUnderMouse <TextBox>() != textBox)
{
textBox.Visibility = Visibility.Collapsed;
CancelEditEventArgs cancelEditEventArgs = new CancelEditEventArgs((string)Header, textBox.Text);
EditHeaderClosing?.Invoke(this, cancelEditEventArgs);
if (cancelEditEventArgs.Cancel == false)
{
Header = cancelEditEventArgs.NewValue;
}
parentWindow.PreviewMouseDown -= parentMouseDown;
}
};
parentWindow.PreviewMouseDown += parentMouseDown;
}
}
/// <summary>开始编辑控件的名称,资源在控件加载完毕后才有效</summary>
public void HeaderEdit(CancelEditEventHandler EditHeaderClosing)
{
TextBox textBox = GetTemplateChild("PART_HeaderEdit") as TextBox;
if (textBox != null)
{
textBox.Visibility = Visibility.Visible;
textBox.Text = (string)Header;
textBox.SelectAll();
textBox.Focus();
Window parentWindow = Window.GetWindow(textBox);
MouseButtonEventHandler parentMouseDown = null;
KeyEventHandler keyDown = null;
RoutedEventHandler lostFocus = null;
Action CloseHeaderEdit = () =>//关闭编辑器
{
textBox.Visibility = Visibility.Collapsed;
CancelEditEventArgs cancelEditEventArgs = new CancelEditEventArgs((string)Header, textBox.Text);
EditHeaderClosing?.Invoke(this, cancelEditEventArgs);
if (cancelEditEventArgs.Cancel == false)
{
Header = cancelEditEventArgs.NewValue;
}
textBox.KeyDown -= keyDown;
textBox.LostFocus -= lostFocus;
parentWindow.PreviewMouseDown -= parentMouseDown;
};
keyDown = (sender, e) =>
{
if (e.Key == Key.Enter)
{
CloseHeaderEdit();
}
};
parentMouseDown = (sender, e) =>
{
if (parentWindow.GetElementUnderMouse <TextBox>() != textBox)
{
CloseHeaderEdit();
}
};
lostFocus = (sender, e) =>
{
CloseHeaderEdit();
};
textBox.KeyDown += keyDown;
textBox.LostFocus += lostFocus;
parentWindow.PreviewMouseDown += parentMouseDown;
}
}
