how to bind data in checkedlistbox in window application

First, do not concatenate values directly to an SQL statement. Use parameters instead, see: SqlParameter[^].

About the binding use the DisplayMember[^] and ValueMember[^] properties to define the fields your binding should use.

Addition:

I think you should have a comma in your SQL statement. Try:

SqlDataAdapter da = new SqlDataAdapter("SELECT NAME, AC_CODE FROM AccountM where compcode='" + Compcls.Gcomp_cd + "'", con);

And remember to add parameter to your query:

SqlDataAdapter da = new SqlDataAdapter("SELECT NAME, AC_CODE FROM AccountM where compcode=@compcode", con);
...

check this blog
http://msdn.microsoft.com/en-us/library/system.windows.forms.checkedlistbox.aspx[^]
--NDK

Try

private void FillCheckedListBox (CheckedListBox chkListBox, string sSql, string displayMember, string valueMember)
        {
            try {
                SqlConnection con = new SqlConnection(DaoCodeGCommon.GetConstring());
                con.Open();
                DataTable accTable = new DataTable();
                SqlCommand cmd = new SqlCommand(sSql, con);
                SqlDataAdapter adpObj = new SqlDataAdapter(cmd);
                accTable.TableName = "tbl";
                adpObj.Fill(accTable);
                con.Close();
                chkListBox.DataSource = accTable;
                chkListBox.ValueMember = valueMember;
                chkListBox.DisplayMember = displayMember;
            }
            catch (Exception ex) {

                throw ex;
            }
        }

private void FillCheckedListBox (CheckedListBox chkListBox, string sSql, string displayMember, string valueMember)
{
try {
SqlConnection con = new SqlConnection(DaoCodeGCommon.GetConstring());
con.Open();
DataTable accTable = new DataTable();
SqlCommand cmd = new SqlCommand(sSql, con);
SqlDataAdapter adpObj = new SqlDataAdapter(cmd);
accTable.TableName = "tbl";
adpObj.Fill(accTable);
con.Close();
chkListBox.DataSource = accTable;
chkListBox.ValueMember = valueMember;
chkListBox.DisplayMember = displayMember;
}
catch (Exception ex) {

throw ex;
}
}