adminTeacherDetails.aspx.cs

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using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class adminTeacherDetails : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            GridViewBind();
        }
    }
    //GridView绑定数据方法
    private void GridViewBind()
    {
        string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
        string SqlStr = "SELECT Teacher.*,Depart.* FROM Teacher ,Depart where Teacher.teaDepart=Depart.departID order by Teacher.teaDepart";
        DataSet ds = new DataSet();
        SqlConnection conn = new SqlConnection(connStr);
        try
        {
            if (conn.State.ToString() == "Closed")
                conn.Open();
            SqlDataAdapter da = new SqlDataAdapter(SqlStr, conn);
            da.Fill(ds);

            GridView1.DataSource = ds.Tables[0].DefaultView;
            GridView1.DataBind();
        }
        catch (Exception ex)
        {
            Response.Write("数据库错误，错误原因：" + ex.Message);
            Response.End();
        }
        finally
        {
            if (conn.State.ToString() == "Open")
                conn.Close();
        }
    }

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (((DropDownList)e.Row.FindControl("ddlDepart")) != null)
        {
            DropDownList ddldepart = (DropDownList)e.Row.FindControl("ddlDepart");

            //  生成 DropDownList 的值，绑定数据
            string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
            string SqlStr = "SELECT * from Depart";
            DataSet ds = new DataSet();