First take a DataTable to put the data of The Dataset
DataTable table = dataSet.Tables[0];
and then
you can create a DataView of your Datatable and then bind the drop down list to that. Your code will be like this then
DataView dvlist = new DataView(table);
dvlist.Sort = "Description";
ddllist.DataSource = dvlist;
ddllist.DataTextField = "Description";
ddllist.DataValueField = "Id";
ddllist.DataBind();
hope you find your solution now
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solved how can we sort the list items in drop down list in asp.net programatically [closed]