问题:按enter键时将焦点设置为DataGridTemplateColumn子控件
答案:在WPF中,如果想要在按下Enter键时将焦点设置为DataGridTemplateColumn的子控件,可以通过以下步骤实现:
以下是一个示例代码:
<DataGrid ItemsSource="{Binding Data}" IsReadOnly="False">
<DataGrid.Columns>
<DataGridTemplateColumn>
<DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate>
<TextBox KeyDown="TextBox_KeyDown" Text="{Binding Value}" />
</DataTemplate>
</DataGridTemplateColumn.CellEditingTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
private void TextBox_KeyDown(object sender, KeyEventArgs e)
{
if (e.Key == Key.Enter)
{
TextBox textBox = (TextBox)sender;
DataGridCell cell = FindVisualParent<DataGridCell>(textBox);
DataGridRow row = FindVisualParent<DataGridRow>(cell);
DataGrid dataGrid = FindVisualParent<DataGrid>(row);
int columnIndex = dataGrid.Columns.IndexOf(cell.Column);
int rowIndex = dataGrid.Items.IndexOf(row.Item);
if (rowIndex < dataGrid.Items.Count - 1)
{
DataGridRow nextRow = dataGrid.ItemContainerGenerator.ContainerFromIndex(rowIndex + 1) as DataGridRow;
DataGridCell nextCell = dataGrid.Columns[columnIndex].GetCellContent(nextRow).Parent as DataGridCell;
TextBox nextTextBox = FindVisualChild<TextBox>(nextCell);
if (nextTextBox != null)
{
Keyboard.Focus(nextTextBox);
}
}
}
}
private T FindVisualParent<T>(DependencyObject child) where T : DependencyObject
{
DependencyObject parent = VisualTreeHelper.GetParent(child);
if (parent == null)
return null;
T parentT = parent as T;
return parentT ?? FindVisualParent<T>(parent);
}
private T FindVisualChild<T>(DependencyObject parent) where T : DependencyObject
{
int childCount = VisualTreeHelper.GetChildrenCount(parent);
for (int i = 0; i < childCount; i++)
{
DependencyObject child = VisualTreeHelper.GetChild(parent, i);
T childT = child as T;
if (childT != null)
return childT;
T foundChild = FindVisualChild<T>(child);
if (foundChild != null)
return foundChild;
}
return null;
}
这样,当用户在DataGridTemplateColumn的子控件中按下Enter键时,焦点将自动设置为下一行的相同列的单元格的子控件上。请注意,这只是一个示例代码,您可能需要根据您的具体需求进行适当的修改和调整。
腾讯云相关产品和产品介绍链接地址:
请注意,以上链接仅供参考,具体的产品选择应根据实际需求和情况进行评估和决策。
没有搜到相关的沙龙
领取专属 10元无门槛券
手把手带您无忧上云