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我有一個Panel可見= false。我有邏輯，應該使面板可見如果條件得到滿足。 我找不到面板我猜這是因爲它不可見。也許我會嘗試另一個事件，看看我是否應該讓面板可見。像Databound事件？找不到Gridview事件中的formview編輯模式的面板控制
更新**************** 根據以下關於使用顯示器的註釋：無 極好的建議。我確信它會解決我的問題。然而，在做了幾件事情之後，我無法獲得面板樣式=「display：none」甚至隱藏面板。我知道我在編輯的正確面板上，因爲我在裏面改變了文字。
我已經做了幾件事情，比如禁用viewstate，在代碼前面板中對代碼樣式進行硬編碼，在itemcommand事件的頂部添加屬性（「樣式」，塊），放入testPanel中，以某種方式覆蓋能見度....
UPDATE＃2 *************** 我完全難住...這一切應該工作...所以，我做了一些進一步的谷歌搜索。現在我可能已經遺漏了一些不知道它重要的重要信息。 - 我有一個網格視圖 - 下面是由selectedIndex事件 生產的形式 - 我試着從下面的帖子，但沒有喜悅 I cannot change control's visibility on C# code
測試結果來實現： - edit命令是越來越正常解僱 - 我刪除了這個太平洋之外的任何控件 - 面板外面的更新面板可以更改 - 我更改了更新面板「更新模式」以有條件地確保沒有其他東西被覆蓋 即使我知道此面板只存在於此因爲我剛添加它。
所以這是什麼與gridview？這是我加入它下面
的.aspx
<asp:Panel ID="pnlCollectionEventAll" runat="server">
<asp:GridView ID="gvCollectionEventDetail" runat="server" SkinID="annualReportGridview" AllowSorting="True"
AutoGenerateColumns="False" CellPadding="4" DataSourceID="odsMRWCollectionDetailByReportId" EnableSortingAndPagingCallbacks="false"
DataKeyNames="MRWCollectionReportDetailId" ForeColor="#333333" GridLines="Vertical" Width="720px"
ShowFooter="True" OnRowDataBound="gvCollectionEventDetail_RowDataBound" OnSelectedIndexChanged="gvCollectionEventDetail_SelectedIndexChanged">
<Columns>
<asp:CommandField ButtonType="button" ShowSelectButton="true" SelectText="Select"
ItemStyle-HorizontalAlign="Left" ControlStyle-ForeColor="#1A3B69" />
<asp:TemplateField HeaderText="Disposal Method" SortExpression="DisposalMethodCode"
FooterStyle-HorizontalAlign="Left" HeaderStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:Label ID="lblDisposalMethod" runat="server" Text='<%# Eval("DisposalMethodCode") %>'></asp:Label>
</ItemTemplate>
<ItemStyle HorizontalAlign="Left" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Qty disposed (lbs)" FooterStyle-HorizontalAlign="Left"
HeaderStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:Label ID="lblWasteQty" runat="server" Text='<%# Eval("WasteQuantity") %>'></asp:Label>
</ItemTemplate>
<ItemStyle HorizontalAlign="Left" />
</asp:TemplateField>
<asp:TemplateField HeaderText="Contractor" FooterStyle-HorizontalAlign="Left"
HeaderStyle-HorizontalAlign="Left">
<ItemTemplate>
County:<asp:Label ID="lblSourceCounty" runat="server" Text='<%# Eval("CountyName") %>'></asp:Label>
State:<asp:Label ID="lblSourceState" runat="server" Text='<%# Eval("StateCode") %>'></asp:Label>
Country:<asp:Label ID="lblSourceCountry" runat="server" Text='<%# Eval("CountryName") %>'></asp:Label> <br />
</ItemTemplate>
<ItemStyle HorizontalAlign="Left" />
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
No MRW Collection details have been entered for this report.
</EmptyDataTemplate>
</asp:GridView>
</asp:Panel>
<asp:Button ID="btn_addWasteCollectedRecord" runat="server" Text="Add a New Waste Collected Record" OnClick="btn_addWasteCollectedRecord_Click" />
<asp:Button ID="btn_addWasteCollectedRecordDone" runat="server" Text="Done Adding Waste Collected Records" Visible="false" OnClick="btn_addWasteCollectedRecordDone_Click" />
<br /><br />
<asp:FormView ID="fvWasteCollected" runat="server" SkinID="annualReportFormview" ViewStateMode="Disabled"
HeaderText="Selected Waste Collected Detail" DataKeyNames="MRWCollectionReportDetailId" DefaultMode="Insert"
DataSourceID="odsMRWWasteCollectedDetail" OnDataBound="fvWasteCollected_DataBound"
OnItemCommand="fvWasteCollected_ItemCommand" OnItemInserted="fvWasteCollected_ItemInserted"
OnItemUpdated="fvWasteCollected_ItemUpdated" OnItemDeleted="fvWasteCollected_ItemDeleted">
<EditItemTemplate>
<table class="detailstable">
<asp:Panel ID="pnlOtherContractor" runat="server" Visible="false">
<tr>
<th></th>
<td align="left">
Blah Blah
</td>
</tr>
</asp:Panel>
</table>
</EditItemTemplate>
aspx.cs
protected void gvCollectionEventDetail_SelectedIndexChanged(object sender, EventArgs e)
{
fvWasteCollected.ChangeMode(FormViewMode.ReadOnly);
fvWasteCollected.DataBind();
pnlMWRCOllectionForm.Visible = true;
//hide the compost produced add linkbutton
btn_addWasteCollectedRecord.Visible = false;
btn_addWasteCollectedRecordDone.Visible = false;
// hide the edit delete button on fvFeedstockDetail if the annual report already submitted
//and the logon user is not ecy staff authorized to edit report ##################################
Label myLblSubmitDate1 = (Label)fvRptHeader.FindControl("lblSubmitDate");
LinkButton lbtnWasteCollectedEdit = (LinkButton)fvWasteCollected.FindControl("lbtnWasteCollectedEdit");
LinkButton lbtnWasteCollectedDelete = (LinkButton)fvWasteCollected.FindControl("lbtnWasteCollectedDelete");
if (!String.IsNullOrEmpty(myLblSubmitDate1.Text.Trim()))
{
lbtnWasteCollectedEdit.Visible = false;
lbtnWasteCollectedDelete.Visible = false;
btn_addWasteCollectedRecord.Visible = false;
}
}
protected void fvWasteCollected_ItemCommand(object sender, FormViewCommandEventArgs e)
{
if (e.CommandName.Equals("Edit"))
{
ValidationSummaryWasteDetail.ValidationGroup = "WasteReceivedDetail";
fvWasteCollected.ChangeMode(FormViewMode.Edit);
gvCollectionEventDetail.Columns[0].Visible = false;
DataRowView rowView = (DataRowView)fvWasteCollected.DataItem;
DropDownList ddl = (DropDownList)fvWasteCollected.FindControl("ddl_MRWContractor");
//Tried Panel pnlOtherContractor = (Panel)fvWasteCollected.FindControl("pnlOtherContractor");
FormViewRow myFormRow = fvWasteCollected.Row;
Panel pnlOtherContractor = (Panel)myFormRow.FindControl("pnlOtherContractor");
var s_contractorId = rowView["MRWContractorId"].ToString();
if (s_contractorId == "0")
{
pnlOtherContractor.Visible = true;
}
}
}
，而不是'可見= TRUE;或我的支票'FALSE'設置面板來顯示'：none'和'顯示：塊' – 2014-09-19 18:35:13
更新我的帖子上面。 – MSW 2014-09-19 20:44:57
試試我發佈的內容 – 2014-09-20 20:07:13