datagrid鼠标双击事件wpf

Question

我已经使用 WPF 创建了一个应用程序。我已经在数据网格中显示了一些数据。目前，我使用选择更改事件从数据网格中获取数据。我有以下代码

private void datagrid1_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            DataGrid dg = sender as DataGrid;
            DataRowView dr = dg.SelectedItem as DataRowView;
            if (dr != null)
            {
                int id = Convert.ToInt32(dr["Id"].ToString());
           }
}

我只需要在用户双击数据网格时获取数据。怎么可能？

Answer 1

XAML:

<DataGrid MouseDown="datagrid1_MouseDown"></DataGrid>

后面的代码：

private void datagrid1_MouseDown(object sender, MouseButtonEventArgs e)
{
    if (e.ChangedButton == MouseButton.Left && e.ClickCount == 2)
    {
        DataGrid dg = sender as DataGrid;
        DataRowView dr = dg.SelectedItem as DataRowView;
        if (dr != null)
        {
            int id = Convert.ToInt32(dr["Id"].ToString());
        }
    }
}

P.S。您可以使用 null 传播来使您的代码更健壮：

var idStr = ((sender as DataGrid)?.SelectedItem as DataRowView)?["Id"]?.ToString();
if (idStr != null)
{
    int id = Convert.ToInt32(idStr);
}

Answer 2

在XAML中：

<datagrid name="datagrid1" ... mousedoubleclick="datagrid1_MouseDoubleClick"></datagrid>

并使用此代码：

private void datagrid1_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
    DataGrid dg = sender as DataGrid;

   if (dg!= null && dg.SelectedItems != null && dg.SelectedItems.Count == 1)
   {
       DataRowView dr = dg.SelectedItem as DataRowView;
       int id = Convert.ToInt32(dr["Id"].ToString());
   }
}

希望对你有所帮助

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