void ColumnsBind()
{
ColumnBLL columnBLL = new ColumnBLL();
string command = "select ID,Title from XK_Column where 1=1 ";
var Columns = columnBLL.GetDataByCommandString(command, string.Empty);
ddlColumns.DataValueField = "ID";
ddlColumns.DataTextField = "Title";
ddlColumns.DataSource = Columns;
ddlColumns.DataBind();
}
