DropDownList in GridView index selected

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Hallo, I need help in setting the selected index in the DropDownList when the page is opened from a different page, the problem is I don't know how to do this with the DropDownList in the GridView. Can anyone show me how to do this please?

Posted 4-Mar-10 23:04pm

jellybeannn

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lipson4u · Answer 1 · 2010-03-04T23:56:00

Solution 1

Refer the below links

http://www.aspnettutorials.com/tutorials/controls/dropdownlist-gridview-csharp.aspx[^]

http://programming.top54u.com/post/Gridview-DropDownList-SelectedValue-in-ASP-Net.aspx[^]

http://www.codeproject.com/KB/webforms/DropdownInsideGridview.aspx[^]

Posted 4-Mar-10 23:56pm

lipson4u

Updated 6-Apr-10 2:59am

v2

Mohd Arshad Malik · Answer 2 · 2010-04-06T02:09:00

Hi there...

At the page where your GridView and DropDownList in it exists....

... I suppose your GridView Id is gdvUser and DropDownList id is drpUser... put these line to set index... and you're binding only one record to the GridView...

C#

DropDownList drpL = (DropDownList) gdvUser.Rows[0].FindControl("drpUser");
drpL.SelectedIndex = 0; // I set 0 you can set it to any existing index

In above code, I supposed you're filling only one record so I targeted Row at position 0 in GridView. You can target any row as per your requirement. In case you want to set DropDownList index for all records in GridView, you can use for loop...

C#

for(int i=0;i<gdvUser.Rows.Count;i++)
{
   DropDownList drpL = (DropDownList) gdvUser.Rows[i].FindControl("drpUser");
   drpL.SelectedIndex = 0; // I set 0 you can set it to any existing index
}

Also you can find an Item of dropdown list using Text or Value properties of item.

Examples:

C#

DropDownList drpL = (DropDownList) gdvUser.Rows[0].FindControl("drpUser");
drpL.clearSelection();
drpL.Items.FindByText("SomeText").Selected = true;

C#

DropDownList drpL = (DropDownList) gdvUser.Rows[0].FindControl("drpUser");
drpL.clearSelection();
drpL.Items.FindByValue("SomeValue").Selected = true;

C#

DropDownList drpL = (DropDownList) gdvUser.Rows[0].FindControl("drpUser");
ListItem li = new ListItem("SomeText","SomeValue");
drpL.clearSelection();
drpL.Items[li].Selected = true;

Note: In above three examples it's important to clear the selection before programmatically selecting a new item, otherwise an error will be shown about no more than a ListItem can be selected at a time.

I hope you got the solution of your query. Good Luck! :)