我有一个网页上有网格。单击“编辑”时，将打开一个弹出模式窗口。在弹出模式窗口中，有一个网格，下面是一个下拉列表和保存按钮。单击“保存”时，所选值将插入位于模态窗口中的网格中。
第一次一切正常，但是如果你已经关闭了模态窗口并且你碰巧再次完成了这个过程（点击第一个网格上的编辑＆gt;模态窗口显示＆gt;选择ddl上的项目＆gt ;点击保存按钮）发生回发错误。我使用更新面板，我还在模态窗口内的添加按钮添加了一个postbacktrigger ..
Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
第一个网格的编辑按钮中的代码（这会调用模态窗口打开）
protected void grd_depreciation_RowEditing(object sender, GridViewEditEventArgs e)
{
Guid DepID = new Guid(grd_depreciation.DataKeys[e.NewEditIndex].Values[0].ToString());
//Show the Depreciation Modal Popup
EditModalDepPopup.Show();
//btnModalDepreciation_Click(sender,e);
//checks the type of depreciation.. Network or Equipment
DropDownList ddldescriptiondep = (DropDownList)(grd_depreciation.Rows[e.NewEditIndex].Cells[0].FindControl("ddlDescriptionDep"));
var incotype = (ddldescriptiondep.SelectedItem).ToString();
populategrd_Editdepreciation(DepID, incotype);
}
这是模态窗口内的添加按钮中的代码（导致错误的代码）：
MarginAnalysi checkmarginanalysisid = MarginAnalysisAssumption_worker.get(a => a.ProjectCode == lbl_projectCode.Text).SingleOrDefault();
DepreciationMatrix tblDepreciationMatrix = new DepreciationMatrix();
tblDepreciationMatrix.DepMatrixID = Guid.NewGuid();
tblDepreciationMatrix.DepID = new Guid(ViewState["DepID"].ToString());
tblDepreciationMatrix.IncCapexOpexID = new Guid(ddDepreciationModalEmpty.SelectedValue);
DepreciationMatrix_worker.insert(tblDepreciationMatrix);
DepreciationMatrix_worker.submit();
EditModalDepPopup.Show();
populategrd_Editdepreciation(new Guid(ViewState["DepID"].ToString()), ViewState["incotype"].ToString());
在模态窗口上填充网格的代码：
//Populate Edit Depreciaiton Grid on Modal
public void populategrd_Editdepreciation(Guid DepID, string incotype)
{
ViewState["DepID"] = DepID;
ViewState["incotype"] = incotype;
var x = from a in DepreciationMatrix_worker.get(a => a.DepID == DepID)
select new { a.DepMatrixID, a.IncCapexOpexID };
grd_Editdepreciation.DataSource = x;
grd_Editdepreciation.DataBind();
//Populate dropdownlist on edit depreciation modal
MarginAnalysi checkmarginanalysisid = MarginAnalysisAssumption_worker.get(a => a.ProjectCode == lbl_projectCode.Text).SingleOrDefault();
//Selects eithers Equipment or Network Depreciation
string test = incotype.ToUpper();
if (test.Contains("EQUIPMENT"))
{
var dropdowndepreciationmodal = from a in tblIncCapexOpex_worker.get(a => a.MarginAnalysisID == checkmarginanalysisid.MarginAnalysisID && a.IncCoTypeID == "CAPEX" && a.DepreciationTypeID == "EQUIPMENT")
select new { text = a.Description, value = a.IncCapexOpexID };
populateDropdownlist(ddDepreciationModalEmpty, dropdowndepreciationmodal, true);
}
else
{
var dropdowndepreciationmodal = from a in tblIncCapexOpex_worker.get(a => a.MarginAnalysisID == checkmarginanalysisid.MarginAnalysisID && a.IncCoTypeID == "CAPEX" && a.DepreciationTypeID == "NETWORK")
select new { text = a.Description, value = a.IncCapexOpexID };
populateDropdownlist(ddDepreciationModalEmpty, dropdowndepreciationmodal, true);
}
}
模态弹出的Aspx代码。此代码位于updatepanel标记内。
<asp:Button ID="btnModalDepreciation" CssClass="popup_ButtonsHide" runat="server"
Text="Click here to show the modal" /><cc1:ModalPopupExtender BehaviorID="test4"
ID="EditModalDepPopup" BackgroundCssClass="ModalPopupBG" runat="server" TargetControlID="btnModalDepreciation"
PopupControlID="DivEditDepTab" Drag="True" PopupDragHandleControlID="DepPopupHeader"
DynamicServicePath="" Enabled="True">
</cc1:ModalPopupExtender>
<div id="DivEditDepTab" style="display: none;" class="popupConfirmation2">
<div class="popup_Container">
<div class="popup_Titlebar" id="DepPopupHeader">
<div class="TitlebarLeft">
Depreciation Items</div>
<div class="TitlebarRight">
</div>
</div>
<div class="popup_Body">
Depreciation Details
<br />
<asp:Table ID="Table25" runat="server" Width="400px">
<asp:TableRow>
<asp:TableCell>
<asp:GridView ID="grd_Editdepreciation" runat="server" AutoGenerateColumns="False"
Width="100%" OnRowCancelingEdit="grd_Editdepreciation_RowCancelingEdit" OnRowDeleting="grd_Editdepreciation_RowDeleting"
OnRowEditing="grd_Editdepreciation_RowEditing" OnRowUpdating="grd_Editdepreciation_RowUpdating"
OnRowDataBound="grd_Editdepreciation_RowDataBound" DataKeyNames="DepMatrixID">
<Columns>
<asp:TemplateField HeaderText="Depreciation" SortExpression="Depreciation">
<EditItemTemplate>
<asp:DropDownList ID="ddDepreciationModal" runat="server" Width="100%">
</asp:DropDownList>
<asp:HiddenField ID="hiddenIncCapexOpexID" runat="server" Value='<%# Bind("IncCapexOpexID") %>' />
</EditItemTemplate>
<ItemTemplate>
<asp:DropDownList ID="ddDepreciationModal" runat="server" Enabled="False" Width="100%">
</asp:DropDownList>
<asp:HiddenField ID="hiddenIncCapexOpexID" runat="server" Value='<%# Bind("IncCapexOpexID") %>' />
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ShowHeader="False">
<EditItemTemplate>
<asp:LinkButton ID="btnUpdateDepModal" runat="server" CausesValidation="True" CommandName="Update"
Text="Update"></asp:LinkButton> <asp:LinkButton ID="LinkButton2" runat="server"
CausesValidation="False" CommandName="Cancel" Text="Cancel"></asp:LinkButton></EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="btnEditDepModal" runat="server" CausesValidation="False" CommandName="Edit"
Text="Edit"></asp:LinkButton> <asp:LinkButton ID="btnDeleteDepModal" runat="server"
CausesValidation="False" CommandName="Delete" Text="Delete"></asp:LinkButton>
<%-- <cc1:ConfirmButtonExtender ID="confirm1" TargetControlID ="btnDeleteDepModal" ConfirmText="Are you sure you want to delete this?" runat="server">
</cc1:ConfirmButtonExtender>--%>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
No Data Found</EmptyDataTemplate>
</asp:GridView>
</asp:TableCell></asp:TableRow>
</asp:Table>
<asp:Table ID="Table26" runat="server" Width="400px">
<asp:TableRow>
<asp:TableHeaderCell>Depreciation</asp:TableHeaderCell></asp:TableRow>
<asp:TableRow>
<asp:TableCell Width="70%">
<asp:DropDownList ID="ddDepreciationModalEmpty" runat="server" Width="100%">
</asp:DropDownList>
</asp:TableCell><asp:TableCell Width="30%">
<asp:Button ID="btnAddDepreciationItem" runat="server" Text="Add" Height="26px" OnClick="btnAddDepreciationItem_Click"
Width="70%" /></asp:TableCell></asp:TableRow>
</asp:Table>
<asp:ValidationSummary ID="ValidationSummary22" runat="server" ValidationGroup="AddDepreciationModal" />
<asp:ValidationSummary ID="ValidationSummary23" runat="server" ValidationGroup="DeleteDepreciationModal" />
</div>
<div class="popup_Buttons">
<asp:Button ID="btnCancelDepreciationModal" runat="server" Text="Close" OnClick="CancelDepreciationItem_Click" /></div>
</div>
</div>
答案 0 :(得分：0)
看看我对这个问题的回答，以便了解出了什么问题。
https://stackoverflow.com/a/8572928/168371
问题不在您的代码中，而是在更新面板内并且在标记中具有旧值的某些控件。
请评论任何进一步的帮助。