C#
求救高手们DataGrid里DropDownList问题！！！
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我也要 关注 + 加入社区用模版列放置一个DropDownList，希望动态变换：如，其中一行选1，那其他行的DropDownList显示2。
代码如下：
private void MaterialGrid_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if( e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
DropDownList ddl = e.Item.FindControl("ddlMainSubstitute") as DropDownList;
ddl.SelectedIndexChanged += new EventHandler(DDL_SelectedIndexChanged);
}
}
void DDL_SelectedIndexChanged(object sender,EventArgs e)
{
DropDownList ddl = (DropDownList)sender;
DataGridItem dgi = (DataGridItem)ddl.Parent.Parent;
if(ddl.SelectedItem.Value == "1")
{
foreach(System.Web.UI.WebControls.DataGridItem oItem in MaterialGrid.Items)
{
DropDownList ddl2 = oItem.FindControl("ddlMainSubstitute") as DropDownList;
if(oItem!=dgi)
ddl2.Items.FindByValue("2").Selected = true;
}
}
}
报错：DropDownList不能多选ITEMS！
求高手解决方法！
代码如下：
private void MaterialGrid_ItemCreated(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
if( e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
DropDownList ddl = e.Item.FindControl("ddlMainSubstitute") as DropDownList;
ddl.SelectedIndexChanged += new EventHandler(DDL_SelectedIndexChanged);
}
}
void DDL_SelectedIndexChanged(object sender,EventArgs e)
{
DropDownList ddl = (DropDownList)sender;
DataGridItem dgi = (DataGridItem)ddl.Parent.Parent;
if(ddl.SelectedItem.Value == "1")
{
foreach(System.Web.UI.WebControls.DataGridItem oItem in MaterialGrid.Items)
{
DropDownList ddl2 = oItem.FindControl("ddlMainSubstitute") as DropDownList;
if(oItem!=dgi)
ddl2.Items.FindByValue("2").Selected = true;
}
}
}
报错：DropDownList不能多选ITEMS！
求高手解决方法！
...全文
