Setting dropdownlist selecteditem programmatically

Question

I want to set the selecteditem attribute for an ASP.Net dropdownlist control programmatically.

So I want to pass a value to the dropdownlist control to

Answer 1

Well if I understood correctly your question. The Solution for setting the value for a given dropdownlist will be:

dropdownlist1.Text="Your Value";

This will work only if the value is existing in the data-source of the dropdownlist.

Answer 2

Here is the code I was looking for :

DDL.SelectedIndex = DDL.Items.IndexOf(DDL.Items.FindByText("PassedValue"));

Or

DDL.SelectedIndex = DDL.Items.IndexOf(DDL.Items.FindByValue("PassedValue"));

Answer 3

ddlData.SelectedIndex will contain the int value To select the specific value into DropDown :

ddlData.SelectedIndex=ddlData.Items.IndexOf(ddlData.Items.FindByText("value"));

return type of ddlData.Items.IndexOf(ddlData.Items.FindByText("value")); is int.

Answer 4

Just Use this oneliner:

divisions.Items.FindByText("Some Text").Selected = true;
divisions.Items.FindByValue("some value").Selected = true;

where divisions is a dropdownlist control.

Hope it helps someone.

Answer 5

var index = ctx.Items.FirstOrDefault(item => Equals(item.Value, Settings.Default.Format_Encoding));
ctx.SelectedIndex = ctx.Items.IndexOf(index);

OR

foreach (var listItem in ctx.Items)
  listItem.Selected = Equals(listItem.Value as Encoding, Settings.Default.Format_Encoding);

Should work.. especially when using extended RAD controls in which FindByText/Value doesn't even exist!

Answer 6

If you need to select your list item based on an expression:

foreach (ListItem listItem in list.Items)
{
    listItem.Selected = listItem.Value.Contains("some value");
}