gridView绑定 命令

 protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)   //各按钮方法
    {
        if (e.CommandName == "Editer")                                 //编辑
        {
            int Rowindex = Convert.ToInt32(e.CommandArgument);
            int strid = Convert.ToInt32(this.GridView1.Rows[Rowindex].Cells[0].Text);
            Response.Write("<script language='JavaScript'>window.location='Edit.aspx?id="+strid+"';</script>");
        }
protected void GridView1_RowBound(object sender, GridViewRowEventArgs e)
    {

        SqlCommand sqlComm;
        sqlComm = new SqlCommand();
        sqlComm.Connection = sqlConn;
        if (e.Row.RowType == DataControlRowType.DataRow)
        {//绑定DropDownList
           
            DropDownList ddlModel = (DropDownList)e.Row.FindControl("ddlModel");  //先绑定dropdownlist
            strSQL = "SELECT * FROM tModel";
            sqlComm.CommandText = strSQL;
            sqlComm.Connection.Open();
            SqlDataAdapter sda = new SqlDataAdapter();
            sda.SelectCommand = sqlComm;
            DataSet ds = new DataSet();
            sda.Fill(ds, "tModel");
            ddlModel.DataSource = ds.Tables["tModel"];
            ddlModel.DataTextField = "MText";
            ddlModel.DataValueField = "ID";
            ddlModel.DataBind();
            sqlComm.Connection.Close();  
        }
    }