![](https://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
protected void DDLAnnex_SelectedIndexChanged(object sender, EventArgs e)
{
DropDownList drp = sender as DropDownList; // 触发事件的 DropDownList
GridViewRow row = drp.NamingContainer as GridViewRow; // GridView 当前行
row.Style.Add(HtmlTextWriterStyle.BackgroundColor, drp.SelectedValue);
int CurRow = row.RowIndex;
}