[英]how to change drop down list based on gridview selection
I have a drop down list which will load up with a series of customer ID numbers. 我有一个下拉列表,其中将加载一系列客户ID号。 I then have a gridview control on my page with the select hyperlink.
然后,我的页面上有一个带有选择超链接的gridview控件。 When i click on the link to select the row in gridview i would like my dropdown to change to that number.
当我单击链接以选择gridview中的行时,我希望我的下拉菜单更改为该数字。
Below is what i have tried but doesn't work: 以下是我尝试过但无法使用的内容:
for (int i = 0; i < GridView1.Rows.Count; i++)
{
if (!GridView1.SelectedIndex.Equals(-1))
{
DropDownList ddl;
ddl = (DropDownList)form1.FindControl("ddl_Customers");
ddl.SelectedValue = (String)GridView1.SelectedDataKey.Values[0];
}
}
Handle the SelectedIndexChanged
event for GridView1
处理
GridView1
的SelectedIndexChanged
事件
void GridView1_SelectedIndexChanged(Object sender, EventArgs e) {
ddl_Customers.SelectedValue = GridView1.SelectedDataKey.Value.ToString();
}
You can directly use GridView1.SelectedValue.ToString()
for this. 您可以为此直接使用
GridView1.SelectedValue.ToString()
。 To use that, you should define a datakeyname
like this: <asp:Gridview DataKeyNames="CustomerID">
要使用,你应该定义一个
datakeyname
这样的: <asp:Gridview DataKeyNames="CustomerID">
Then all you need is this: 然后,您需要的是:
void GridView1_SelectedIndexChanged(Object sender, EventArgs e) {
ddl_Customers.SelectedValue = GridView1.SelectedValue.ToString();
}
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