[PsychoCoder]

In my web application I have a DropDownList that is populated from a DataSet. Once the DropDownList is bound Im attempting to sort it using the following code, but it isnt working, and I cant figure out why

//first we bind the DropDwnList
DataSet domains = util.BuildDataSet(Server.MapPath("supported_domains.txt"), "Domains", "\t");
supported_domain.DataSource = domains;
supported_domain.DataTextField = domains.Tables[0].Columns[0].ToString();
supported_domain.DataValueField = domains.Tables[0].Columns[0].ToString();
supported_domain.DataBind();

//now we will sort the DropDownList
ListItem[] sorted = new ListItem[supported_domain.Items.Count];
//Response.Write(sorted.Length);
for (int i = 0; i < sorted.Length; i++)
{
    sorted[i] = supported_domain.Items[i];
}
Array.Sort(sorted);
supported_domain.Items.Clear();
supported_domain.Items.AddRange(sorted);

[Nayana]

It's probably something to do with the data binding, so you can't your own entries to it.

Have you tried setting the Sorted property to true? (assuming the DropDownList supports it).

This post has been edited by Nayana: 28 February 2008 - 11:28 PM

[PsychoCoder]

A DropDownList doesn't support sorting. Guess I can try to sort the items before adding them to the DataSet, but that just seems like a ton of work.

Well the code works on a non data bound DropDownList, so back to the drawing board lol

[Nayana]

I don't actually have ASPX to play around with, so bear with me...

Would it be possible to unbind the DropDownList, then copy the array items back into it?

Does the array even get the items in the first place?

[PsychoCoder]

Yeah the Array gets the items, I had it print out it's length and it was the correct length