WPF DataGrid使用 自动显示行号、全选、三级联动、拖拽

1.DataGrid的使用自动显示行号(修复删除行时行号显示不正确)

View Code

private void cbbCountyName_Loaded(object sender, RoutedEventArgs e)
{
var cbbCountyName = sender as ComboBox;
var rowData = source.ElementAt(rowIndex);
if (rowData != null)
{
e.Handled = true;
return;
}
if (String.IsNullOrEmpty(rowData.ProvinceName))
{
MessageBox.Show("请先选择省");
e.Handled = true;
return;
}
else
{
if (string.IsNullOrEmpty(rowData.CityName))
{
MessageBox.Show("请先选择市");
e.Handled = true;
return;
}
else
{

cbbCountyName.ItemsSource = countySource;
cbbCountyName.DisplayMemberPath = "CountyName";
cbbCountyName.SelectedValuePath = "CountyNo";

}
}
}

private void cbbCountyName_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var cbbCountyName = sender as ComboBox;
var rowData = source.ElementAt(rowIndex);
if (cbbCountyName != null && cbbCountyName.SelectedValue != null)
rowData.CountyNo = int.Parse(cbbCountyName.SelectedValue.ToString());
}

5.DataGrid的拖拽

总结：以上纯属个人的理解，对于有些地方觉得还是理解不是很深，有不足之处和错误的地方希望大家帮我指出。谢谢