使用ModalPopupExtender编辑GridView行值并在GridView中保存值

Question

我使用ModalPopUpExtender来显示GridView中某个项目的详细信息，在编辑Popup中的行后，我似乎无法使其工作，回到页面，它也将随着任何数据库访问而改变。

ASPX形式

<asp:GridView runat="server" ID="gridview" CssClass="table-hover" AutoGenerateColumns="true" HeaderStyle-BackColor="CornflowerBlue" BackColor="White" BorderWidth="5" BorderColor="CornflowerBlue" OnSelectedIndexChanged="gridview_SelectedIndexChanged" CellPadding="10" 
    CellSpacing="0" Width="100%"> 
    <HeaderStyle BackColor="CornflowerBlue"></HeaderStyle> 
    <Columns> 
     <asp:TemplateField ItemStyle-Width="30px" HeaderText="Details"> 
      <ItemTemplate> 
       <asp:ImageButton ID="lnkEdit" runat="server" ImageUrl="~/Images/Icons/Modify.png" OnClick="Edit" /> 
       <%--<asp:LinkButton ID="lnkEdit" runat="server" Text="Edit" OnClick="Edit"></asp:LinkButton>--%> 
      </ItemTemplate> 
     </asp:TemplateField> 
    </Columns> 
</asp:GridView> 
       <asp:Panel ID="pnlAddEdit" runat="server" CssClass="modal-content modal-body"> 
       <asp:Label Font-Bold ="true" runat="server" ID ="lblDetails" Text="Details"></asp:Label> 
       <br /> 
       <table align ="center"> 
        <tr> 
         <td> 
          <asp:Label ID="label1" runat="server" Text ="Type"></asp:Label> 
         </td> 
         <td> 
          <asp:TextBox ID ="typetxt" CssClass="form-control" runat="server"></asp:TextBox> 
         </td> 
        </tr> 
        <tr> 
         <td> 
          <asp:Label ID="label2" runat="server" Text ="Model"></asp:Label> 
         </td> 
         <td> 
          <asp:TextBox ID ="modeltxt" CssClass="form-control" runat="server"></asp:TextBox> 
         </td> 
        </tr> 
        <tr> 
         <td> 
          <asp:Label ID="label3" runat="server" Text ="Quantity"></asp:Label> 
         </td> 
         <td> 
          <asp:TextBox ID ="quantxt" CssClass="form-control" runat="server"></asp:TextBox> 
         </td> 
        </tr> 
        <tr> 
         <td> 
          <asp:Label ID="label4" runat="server" Text ="Unit"></asp:Label> 
         </td> 
         <td> 
          <asp:TextBox ID ="txtunit" CssClass="form-control" runat="server"></asp:TextBox> 
         </td> 
        </tr> 
        <tr> 
         <td> 
          <asp:Label ID="label5" runat="server" Text ="Description"></asp:Label> 
         </td> 
         <td> 
          <asp:TextBox ID ="descritxt" CssClass="form-control" runat="server"></asp:TextBox> 
         </td> 
        </tr> 
        <tr> 
         <td> 
          <asp:Label ID="label6" runat="server" Text ="Remarks"></asp:Label> 
         </td> 
         <td> 
          <asp:TextBox ID ="remarkstxt" CssClass="form-control" runat="server"></asp:TextBox> 
         </td> 
        </tr> 
        <tr> 
         <td> 
          <asp:Label ID="label7" runat="server" Text ="Date"></asp:Label> 
         </td> 
         <td> 
          <asp:TextBox ID ="target" CssClass="form-control" runat="server"></asp:TextBox> 
         </td> 
        </tr> 
        <tr> 
         <td> 
          <asp:Button ID ="btnSave" runat="server" Text="Save" OnClick="Save" /> 
         </td> 
         <td> 
          <asp:Button ID ="btnCancel" runat="server" Text="Cancel" OnClientClick ="return Hidepopup()" /> 
         </td> 
        </tr>       
       </table>     
      </asp:Panel> 


<asp:LinkButton ID="lnkFake" runat="server"></asp:LinkButton> 
      <cc1:ModalPopupExtender ID="modal" runat="server" DropShadow="true" PopupControlID="pnlAddEdit" TargetControlID="lnkFake" BackgroundCssClass="modalBackground"> 
      </cc1:ModalPopupExtender> 
      </ContentTemplate> 
     <Triggers> 
      <asp:AsyncPostBackTrigger ControlID ="gridview" /> 
      <asp:AsyncPostBackTrigger ControlID ="btnSave" /> 
     </Triggers> 
     </asp:UpdatePanel> 
    </div> 

aspx.cs形式

protected void Edit(object sender, EventArgs e) 
    { 
     using (GridViewRow row = (GridViewRow)((ImageButton)sender).Parent.Parent) 
     { 
      typetxt.Text = row.Cells[1].Text; 
      modeltxt.Text = row.Cells[2].Text; 
      quantxt.Text = row.Cells[3].Text; 
      txtunit.Text = row.Cells[4].Text; 
      descritxt.Text = row.Cells[5].Text; 
      remarkstxt.Text = row.Cells[6].Text; 
      target.Text = row.Cells[7].Text; 
      modal.Show(); 
     } 

    } 

    protected void Save(object sender, EventArgs e) 
    { 
     //what will i put here 
    } 

Answer 1

你能挽救像这样使用实体Framwork（示例代码）：

protected void Save(object sender, EventArgs e) 
{ 
    using (var context = new EntityModelNAme()) 
     { 
      int Pid = Convert.ToInt32(Label13.Text);// Get your Primary Id value 
      DBTableName Obj = (from c in context.DBTableName 
           where c.ID == Pid 
           select c).FirstOrDefault();// Match the Id with Database 

      Obj.Type = typetxt.Text;   
      Obj.Model = modeltxt.Text; 
      Obj.Quant = quantxt.Text; 
      // Like Above write your code 
      context.SaveChanges();   
     } 
     this.BindGrid(); 

}