前台設計部分截圖如下:
請看到上圖“編輯”這一列,就是今天所說的內容。通過點擊編輯鏈接,將GridView控件這一行的數據加載到編輯頁面中,而后就可以進行您所需要的修改了。編輯列,前台代碼示例如下:
<asp:TemplateField HeaderText="編輯" runat="server"> <ItemTemplate> <asp:LinkButton ID="LinkButtonUpdate" CommandName="cmdUpdate" runat="server" CommandArgument='<%#Eval("id")+","+Eval("name")+","+Eval("tname")+","+Eval("ip")+","+Eval("port")+","+Eval("time")+","+Eval("location")+","+Eval("misc")%>'>編輯</asp:LinkButton> </ItemTemplate> </asp:TemplateField>
編輯鏈接的屬性CommandArgument有多個參數,其實就是GridView控件中各個列的值。利用GridView控件的RowCommand事件將值傳到編輯界面。
/// <summary> /// 獲取GridView當前數據的行 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> protected void GridView_RowCommand(object sender, GridViewCommandEventArgs e) { if (e.CommandName.Equals("cmdUpdate")) { string[] estr = e.CommandArgument.ToString().Split(','); string ID = Convert.ToString(estr[0]); string NAME = Convert.ToString(estr[1]); string TNAME = Convert.ToString(estr[2]); string IP = Convert.ToString(estr[3]); string PORT = Convert.ToString(estr[4]); string TIME = Convert.ToString(estr[5]); string LOCATION = Convert.ToString(estr[6]); //string INSTALLTIME = Convert.ToString(estr[6]); string MISC = Convert.ToString(estr[7]); Response.Redirect("Modify_Registration.aspx?id=" + ID + "&name=" + NAME + "&tname=" + TNAME + "&ip=" + IP + "&port=" + PORT + "&time=" + TIME + "&location=" + LOCATION + "&misc=" + MISC, false); } }
上面的代碼就是將GridView控件的行數據值綁定到后台,通過Response.Redirect()跳轉再將值傳到編輯頁面中的各個控件中。需要在編輯頁面的后台代碼Page_Load()方法中加載這些被傳過來的數據,
protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { if (Request.QueryString["id"] != null && Request.QueryString["id"].ToString().Trim() != "") { this.txtid.Text = Request.QueryString["id"].ToString().Trim(); this.txtname.Text = Request.QueryString["name"].ToString().Trim(); this.DropDownList_tname.Text = Request.QueryString["tname"].ToString().Trim(); this.txtip.Text = Request.QueryString["ip"].ToString().Trim(); this.txtport.Text = Request.QueryString["port"].ToString().Trim(); this.txttime.Text = Request.QueryString["time"].ToString().Trim(); this.txtlocation.Text = Request.QueryString["location"].ToString().Trim(); //this.Calendarinstalltime.NextMonthText = Request.QueryString["installtime"].ToString().Trim(); this.txtmisc.Text = Request.QueryString["misc"].ToString().Trim(); } BindData_TypeName(); } }
如點擊編號為“19”的那一行數據,在編輯頁面的顯示效果為,
這就是今天所講的效果,值傳過來之后,就可以按自己的需求更改,將數據更新到后台數據庫中。。。
一家之言,僅供參考!!!