按字母顺序排列下拉列表 [英] arrange dropdown list in alphabetical order

问题描述

  public   void  drop_department（）
 {
 dt = bl.bl_drop_department（）; 
 ddl_department.DataSource = dt; 
 ddl_department.DataTextField =   CHILD_DESC; 
 ddl_department.DataValueField =   CHILD_ID; 
 ddl_department.DataBind（）; 
 ddl_department.Items.Insert（ 0 ， 选择）; 
 
 
} 

能帮帮我吗如何按字母顺序排列下拉列表，使用上面的代码我绑定数据库中的下拉列表。

解决方案

在绑定之前对DataTable进行排序。

 dt.DefaultView.Sort =   CHILD_DESC ASC; 

public void drop_department()
        {
            dt = bl.bl_drop_department();
            ddl_department.DataSource = dt;
            ddl_department.DataTextField ="CHILD_DESC";
            ddl_department.DataValueField ="CHILD_ID";
            ddl_department.DataBind();
            ddl_department.Items.Insert(0, "Select");


    }

Could you please help me, how to arrange the dropdown in alphabetical order , using the code above I am binding the dropdown from the database.

解决方案

Sort the DataTable before binding.

dt.DefaultView.Sort = "CHILD_DESC ASC"; 

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