ASP.NET中通過GRIDVIEW選擇按鈕將數據顯示到TEXTBOX中

HTML代碼:

<asp:GridView   ID="GridView1" runat="server" DataKeyNames="ckdh" Height="183px" Style="left: 0px; position: relative;
           top: -18px; font-size: small;" Width="864px" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" DataSourceID="SqlDataSource1"
            AutoGenerateSelectButton="True" CellPadding="4" ForeColor="#333333" GridLines="None"  OnSelectedIndexChanging="GridView1_SelectedIndexChanging" EmptyDataText="未錄入">
           <PagerStyle HorizontalAlign="Right" BackColor="#FFCC66" ForeColor="#333333" />
           <PagerSettings Mode="NextPreviousFirstLast" FirstPageText="第一頁" PreviousPageText="上一頁" NextPageText="下一頁" LastPageText="最後一頁"  />
           <Columns>
               <asp:BoundField  DataField="ckdh" HeaderText="出庫單號" SortExpression="ckdh"  />
               <asp:BoundField  DataField="ckkb" HeaderText="出庫庫別" SortExpression="ckkb"  />
               <asp:BoundField  DataField="ypqx" HeaderText="藥品去向" SortExpression="ypqx"  />
               <asp:BoundField  DataField="ypbh" HeaderText="藥品編號" SortExpression="ypbh"  />
               <asp:BoundField  DataField="ypmc" HeaderText="藥品名稱" SortExpression="ypmc"  />
               <asp:BoundField  DataField="gg" HeaderText="藥品規格" SortExpression="gg"  />
               <asp:BoundField  DataField="dw" HeaderText="藥品單位" SortExpression="dw"  />
               <asp:BoundField  DataField="sj" HeaderText="出庫價格" SortExpression="sj"  />
               <asp:BoundField  DataField="sl" HeaderText="出庫數量" SortExpression="sl"  />
           </Columns>
           <SelectedRowStyle ForeColor="Navy" BackColor="#FFCC66" Font-Bold="True"  />
           <RowStyle ForeColor="#333333" BackColor="#FFFBD6"  />
           <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White"  />
           <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="White"  />
           <AlternatingRowStyle BackColor="White"  />
       </asp:GridView>

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C#後台代碼:

protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs a)
    {
        TextBox1.Text = GridView1.Rows[a.NewSelectedIndex].Cells[1].Text.ToString();
        TextBox2.Text = GridView1.Rows[a.NewSelectedIndex].Cells[2].Text.ToString();
        TextBox3.Text = GridView1.Rows[a.NewSelectedIndex].Cells[3].Text.ToString();
        TextBox4.Text = GridView1.Rows[a.NewSelectedIndex].Cells[4].Text.ToString();
        TextBox5.Text = GridView1.Rows[a.NewSelectedIndex].Cells[5].Text.ToString();
        TextBox6.Text = GridView1.Rows[a.NewSelectedIndex].Cells[6].Text.ToString();
        TextBox7.Text = GridView1.Rows[a.NewSelectedIndex].Cells[7].Text.ToString();
        TextBox8.Text = GridView1.Rows[a.NewSelectedIndex].Cells[8].Text.ToString();
        TextBox9.Text = GridView1.Rows[a.NewSelectedIndex].Cells[9].Text.ToString();
        Session["shuliang"] = Convert.ToInt32( TextBox9.Text);
        //TextBox10.Text = GridView1.Rows[e.NewSelectedIndex].Cells[10].Text.ToString();
        //TextBox11.Text = GridView1.Rows[e.NewSelectedIndex].Cells[11].Text.ToString();
        // TextBox1.Text = GridView1.Rows[e.NewSelectedIndex].Cells[1].Text.ToString();
        //Response.Write("<h1>" + sl + "</h1>");
    
        //bh = GridView1.Rows[e.NewSelectedIndex].Cells[2].Text.ToString(); //得到選中行第二個單元格的文本
    
    }