Question

WPF怎么让datagrid的某个cell下的模板控比如textBox，获取焦点？要光标一闪一闪的效果，便于用户输入

不要单纯的选中，需要光标一闪一闪的那种效果，才能方便用户输入。以下代码是获得cell的焦点（但只是选中了某个cell）
int i = 0;
private void button1_Click(object sender, RoutedEventArgs e)
{
if (i < this.dataGrid.Items.Count)
{
DataGridRow dr = (DataGridRow)this.dataGrid.ItemContainerGenerator.ContainerFromIndex(i);
DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(dr);
DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(0); //取第0列每行单元格
cell.Focus();
i++;
}
else
{
i = 0;
}
public static T GetVisualChild<T>(Visual parent) where T : Visual
{
T child = default(T);
int numVisuals = VisualTreeHelper.GetChildrenCount(parent);
for (int i = 0; i < numVisuals; i++)
{
Visual v = (Visual)VisualTreeHelper.GetChild(parent, i);
child = v as T;
if (child == null)
{
child = GetVisualChild<T>(v);
}
if (child != null)
{
break;
}
}
return child;
}

Answer 1

给cell内的TextBox添加 Loaded事件
XAML
<DataGridTemplateColumn Header="数量">
<DataGridTemplateColumn.CellEditingTemplate>
<DataTemplate>
<TextBox Text="{Binding 数量}" BorderBrush="{x:Null}" Background="{x:Null}" BorderThickness="0" Loaded="TextBox_Loaded" />
</DataTemplate>
</DataGridTemplateColumn.CellEditingTemplate>
</DataGridTemplateColumn>

cs
private void TextBox_Loaded(object sender, RoutedEventArgs e)
{
TextBox testTB = sender as TextBox;
testTB.Focus();
}

Answer 2

试试这句呢：

cell.IsEditing = true;

追问

不行，cell里放的textBox本来就是IsEditing = true

追答

你自定义了列模板没有？

追问

我自定义了的

追答

能否共享源码看调试下？