read data from database and show on a multiselect dropdown
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here i m showing data from database and showing on textbox...there is  also a multiselect dropdown using multidropdown.dll. I m successfully showing data in the textboxes but what method should i use to show data in the multidropdown.
what code should i use to show data in the multidropdown instead of .........
multiselect dropdown has following code:





    

code to read data from database and showing in textbox and multidropdown:

  
<multidropdownLib:multidropdown id="multidropdown1"runnat="server"/>
     sqldatareader dr =cmd.executereader();`while(dr.read())
{
textbox1.text=dr["column_name"].tostring();

multidropdown1................=dr["column_name"].....
}`




    