我有一个带有项目模板和编辑模板的网格视图。问题是，每当我单击编辑按钮时，编辑模板都不会出现。
这是我的页面代码：
<asp:GridView
ID="RoutesGridView"
runat="server"
CssClass="table table-striped table-hover"
GridLines="None"
AutoGenerateColumns="False"
DataKeyNames="RouteId,LocationId,ConcurrencyId"
AllowPaging="true"
EmptyDataText="No Information Retrieved">
<Columns>
<asp:TemplateField Visible="false">
<EditItemTemplate>
<asp:Label id="RouteIdLB" runat="server" Text='<%# Bind("RouteId") %>'></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label id="RouteIdLB" runat="server" Text='<%# Bind("RouteId") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Name" SortExpression="Name">
<EditItemTemplate>
<asp:TextBox ID="NameTB" runat="server" Text='<%# Bind("Name") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="NameLB" runat="server" Text='<%# Bind("Name") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description" SortExpression="Description" >
<EditItemTemplate>
<asp:TextBox ID="DescriptionTB" runat="server" Text='<%# Bind("Description") %>'></asp:TextBox>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="DescriptionLB" runat="server" Text='<%# Bind("Description") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Time Zone" SortExpression="TimeZoneCode">
<EditItemTemplate>
<asp:DropDownList ID="TimeZoneDDL" runat="server" DataSource="<%# GetTimeZones() %>" AppendDataBoundItems="true" DataTextField="TimeZoneCode" DataValueField="TimeZoneId" SelectedValue='<%# Bind("TimeZoneId") %>'>
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Bind("TimeZoneCode") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Is Active" SortExpression="IsActive" HeaderStyle-CssClass="textCenterAlign" ItemStyle-CssClass="textCenterAlign">
<EditItemTemplate>
<asp:CheckBox ID="IsActiveCB" runat="server" Checked='<%# Bind("IsActive") %>' />
</EditItemTemplate>
<ItemTemplate>
<%# IIf(Eval("IsActive").Equals(True), "<i class='icon-ok'></i>", " ")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Is Deleted" SortExpression="IsDeleted" HeaderStyle-CssClass="textCenterAlign" ItemStyle-CssClass="textCenterAlign">
<EditItemTemplate>
<asp:CheckBox ID="IsDeletedCB" runat="server" Checked='<%# Bind("IsDeleted") %>' Enabled="False" />
</EditItemTemplate>
<ItemTemplate>
<%# IIf(Eval("IsDeleted").Equals(True), "<i class='icon-ok'></i>", " ")%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Actions" ItemStyle-CssClass="actions">
<EditItemTemplate>
<asp:LinkButton ID="SaveButton" runat="server" CssClass="btn btn-mini btn-primary hiddenButton" CommandName="Update" Visible="True" Enabled="True" ToolTip="Save pending changes" CommandArgument='<%# CType(Container, GridViewRow).RowIndex %>'><i class="icon-ok icon-white"></i>Save</asp:LinkButton>
<asp:LinkButton ID="CancelButton" runat="server" CssClass="btn btn-mini btn-danger hiddenButton" CommandName="Cancel" Visible="True" Enabled="True" ToolTip="Cancel pending changes" CommandArgument='<%# CType(Container, GridViewRow).RowIndex %>'><i class="icon-ban-circle icon-white"></i>Cancel</asp:LinkButton>
</EditItemTemplate>
<ItemTemplate>
<asp:LinkButton ID="EditButton" runat="server" CssClass="btn btn-mini btn-primary hiddenButton" CommandName="Edit" Visible="True" Enabled="True" ToolTip="Edit this entry" CommandArgument='<%# CType(Container, GridViewRow).RowIndex %>'><i class="icon-edit icon-white"></i>Edit</asp:LinkButton>
<asp:LinkButton ID="DeleteButton" runat="server" CssClass="btn btn-mini btn-danger hiddenButton" CommandName="Delete" Visible="True" Enabled="True" ToolTip="Delete this entry" CommandArgument='<%# CType(Container, GridViewRow).RowIndex %>' OnClientClick='return confirm("Are you certain that you want to delete this entry?");'><i class="icon-trash icon-white"></i>Delete</asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
后面的VB代码：
Protected Sub RoutesGridView_RowEditing(ByVal sender As System.Object, ByVal e As GridViewEditEventArgs) Handles RoutesGridView.RowEditing
Dim gv As GridView = CType(sender, GridView)
Dim row As GridViewRow = gv.Rows(e.NewEditIndex)
Dim RouteId As Integer = CInt(CType(row.FindControl("RouteIdLB"), Label).Text)
_Route = RouteManager.GetItem(RouteId, _dftIdentity)
gv.EditIndex = e.NewEditIndex
RoutesGridView_DataBind()
End Sub
Protected Sub RoutesGridView_RowCancelingEdit(ByVal sender As System.Object, ByVal e As GridViewCancelEditEventArgs) Handles RoutesGridView.RowCancelingEdit
_Route = Nothing
RoutesGridView.EditIndex = -1
RoutesGridView_DataBind()
End Sub
Protected Sub RoutesGridView_RowUpdating(ByVal sender As System.Object, ByVal e As System.Web.UI.WebControls.GridViewUpdateEventArgs) Handles RoutesGridView.RowUpdating
Try
Dim gv As GridView = CType(sender, GridView)
Dim row As GridViewRow = gv.Rows(e.RowIndex)
With _Route
.Name = CType(row.FindControl("NameTB"), TextBox).Text
.TimeZoneId = CType(row.FindControl("TimeZoneDDL"), DropDownList).SelectedValue
.IsActive = CType(row.FindControl("IsActiveCB"), CheckBox).Checked
End With
RouteManager.Update(_Route, _dftIdentity)
_Route = Nothing
gv.EditIndex = -1
RoutesGridView_DataBind()
Catch ex As Exception
ProcessException(ex)
End Try
End Sub