我设置CausesValidation="false"为我的取消按钮，但是当我单击取消按钮时，exception(arrow)页面加载后显示几秒钟。我尝试了许多方法来禁用通过将组名添加到验证器和EnableClientScript property=false验证器但这些无法帮助我解决问题。即使我检查了很多线程，但没有人给出解决方案。如果有人遇到这个问题，请帮助我。
<form id="form1" runat="server" >
<div class="AdminContent">
<asp:Label ID="Label1" runat="server"
CssClass="BreadcrumbActiveBig" Text="Group Membership" />
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<br /><br />
<asp:HiddenField ID="HiddenFieldProfile" runat="server"
/>
<asp:FormView DefaultMode="Edit" ID="FormView1" runat="server"
DataSourceID="PermGroupObjectDataSource1" OnPreRender="FormView1_PreRender">
<EditItemTemplate>
<table>
<tr>
<td align="left" colspan="3">
<asp:Button ID="btnSave"
runat="server" OnClick="btnSave_Click" Text="Save" Width="67px"
CssClass="ButtonS1"/>
<asp:Button ID="btnCancel" runat="server" OnClick="btnCancel_Click"
Text="Cancel" CssClass="ButtonS1" CausesValidation="false" />
</td>
</tr>
<tr>
<td><asp:Label ID="lblGrpName"
runat="server" Text="Group Name:" Width="138px"/></td>
<td><asp:TextBox ID="GroupNameTextBox"
MaxLength="50" runat="server" Text='<%# Bind("GroupName") %>' Width="337px"
ReadOnly="false" />
<asp:RequiredFieldValidator ID="rqrgFldVldtr_GroupName"
ControlToValidate="GroupNameTextBox" Display="Dynamic" ErrorMessage="<"
meta:resourcekey="RequiredFieldValidator1Resource2"
runat="server" ></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td><asp:Label ID="lblGrpDescr"
runat="server" Text="Group Description:" Width="138px"/></td>
<td><asp:TextBox ID="GroupDescrTextBox"
MaxLength="255" runat="server" Text='<%# Bind("GroupDescr") %>' Width="337px"
ReadOnly="false" /></td>
</tr>
<tr>
<asp:Panel ID="managedByPanel" runat="server"
Visible="false">
<td><asp:Label ID="lblManagedByDescr"
runat="server" Text="Managed by:" Width="138px"/></td>
<td>
<asp:DropDownList
ID="managedByDropDownList" runat="server">
<asp:ListItem Value="0"
Text="Admin" />
<asp:ListItem Value="1" Text="AP Clerk admin & Admin" />
<asp:ListItem Value="2" Text="POC admin & Admin" />
</asp:DropDownList>
</td>
</asp:Panel>
</tr>
<tr>
<asp:Panel ID="lblFilterPanel" runat="server" Visible="false">
<td>
<asp:Label ID="LabelFilter" runat="server" Text="Exclude From Document Filter" Width="150px"/>
</td>
<td>
<asp:CheckBox ID="chbExcludefromDocFilter" runat="server"
Checked='<%# Bind("ExcludeFromUserFilter") %>' />
</td>
</asp:Panel>
</tr>
<tr>
<td valign="top">
<asp:Label ID="lblMembers" runat="server" Text="Members:" Width="80px"/>
</td>
<td>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div>
<asp:ListBox ID="lbxMembers" runat="server" style="overflow:auto; width:500px; height:150px;" DataSourceID="MembersObjectDataSource1" DataTextField='ListName' DataValueField="UName" SelectionMode="Multiple" /><br />
<asp:ObjectDataSource ID="MembersObjectDataSource1" runat="server" DataObjectTypeName="System.Collections.Generic.List`1[[Accenture.CSTPrague.eAPI.GroupMember, eAPI, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]]" SelectMethod="FetchGroupMembers" TypeName="Accenture.CSTPrague.eAPI.WebDB_Perm" UpdateMethod="StoreGroupMembers">
<SelectParameters>
<asp:SessionParameter Name="o" SessionField="oPermGroup" Type="Object" />
</SelectParameters>
</asp:ObjectDataSource>
</div>
<asp:Button ID="btnDeleteSelected" runat="server" OnClick="btnDeleteSelected_Click" Text="Delete Selected" Width="106px" CssClass="ButtonS1" Style="margin: 4px 0px 8px 2px;" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnDeleteSelected" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblUserName" runat="server" Text="User name:" Width="141px"/>
</td>
<td>
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
<asp:Panel ID="panel1" runat="server" DefaultButton="btnAdd">
<table>
<tr>
<td valign="top">
<accenture:lookupcontrol ID="UserLookup" runat="server"
LookupCommand="usr"
MaxLength="100"
ValidationGroup="addUser"
DisableValidation="true"
/>
</td>
<td>
<asp:CustomValidator ID="cuvUserName" runat="server" ValidationGroup="addUser"
Display="Dynamic" ErrorMessage="<" EnableClientScript="false" OnServerValidate="cuvUserName_ServerValidate"
ControlToValidate="UserLookup" ValidateEmptyText="true" />
</td>
<td valign="top">
<asp:Button ID="btnAdd" runat="server" OnClick="btnAdd_Click" Text="Add User" ValidationGroup="addUser" CausesValidation="true" CssClass="ButtonS1" Style="margin: 2px 0px 8px 2px;"/>
</td>
</tr>
</table>
</asp:Panel>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnAdd" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</td>
</tr>
<tr style="vertical-align:top">
<asp:Panel ID="queryConditionPanel" runat="server" Visible="false">
<td><asp:Label ID="lblQueryCondition" runat="server" Text="Query Condition:" Width="138px"/></td>
<td><accenture:LengthLimitedMultilineTextBox ID="txtQueryCondition" runat="server" Text='<%# Bind("QueryCondition") %>' style="width:500px" TextMode="MultiLine" MaxLength="1000" Height="100px" CssClass="txtbox" /></td>
</asp:Panel>
</tr>
</table>
</EditItemTemplate>
<InsertItemTemplate>
Gid: <asp:TextBox ID="GidTextBox" runat="server" Text='<%# Bind("Gid") %>' /><br />
GroupName: <asp:TextBox ID="GroupNameTextBox" MaxLength="50" runat="server" Text='<%# Bind("GroupName") %>' /><br />
Id: <asp:TextBox ID="IdTextBox" runat="server" Text='<%# Bind("Id") %>'></asp:TextBox><br />
GroupDescr: <asp:TextBox ID="GroupDescrTextBox" MaxLength="255" runat="server" Text='<%# Bind("GroupDescr") %>' /><br />
ExcludeFromUserFilter: <asp:CheckBox ID="chbExcludefromDocFilter" runat="server" Checked='<%# Bind("ExcludeFromUserFilter") %>' /><br />
Members: <asp:TextBox ID="MembersTextBox" runat="server" Text='<%# Bind("Members") %>' /><br />
<asp:LinkButton ID="InsertButton" runat="server" CausesValidation="True" CommandName="Insert" Text="Insert" />
<asp:LinkButton ID="InsertCancelButton" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancel" />
</InsertItemTemplate>
<ItemTemplate>
Gid: <asp:Label ID="GidLabel" runat="server" Text='<%# Bind("Gid") %>' /><br />
GroupName: <asp:Label ID="GroupNameLabel" runat="server" Text='<%# Bind("GroupName") %>' /><br />
Id: <asp:Label ID="IdLabel" runat="server" Text='<%# Bind("Id") %>' /><br />
GroupDescr: <asp:Label ID="GroupDescrLabel" runat="server" Text='<%# Bind("GroupDescr") %>' /><br />
<%--ExcludeFromUserFilter: <asp:Label ID="lblExcludefromDocFilter" runat="server" Text='<%# Bind("ExcludeFromUserFilter") %>' /><br />--%>
Members: <asp:Label ID="MembersLabel" runat="server" Text='<%# Bind("Members") %>' /><br />
<asp:LinkButton ID="EditButton" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" />
</ItemTemplate>
</asp:FormView>
<asp:Label ID="lblMsg" runat="server" ForeColor="Red" />
<asp:ObjectDataSource ID="PermGroupObjectDataSource1" runat="server" DataObjectTypeName="Accenture.CSTPrague.eAPI.PermGroup" SelectMethod="FetchPermGroupFromDB" TypeName="Accenture.CSTPrague.eAPI.WebDB_Perm" UpdateMethod="StorePermGroupToDB" OnUpdating="PermGroupObjectDataSource1_Updating">
<SelectParameters>
<asp:SessionParameter Name="o" SessionField="oPermGroup" Type="Object" />
</SelectParameters>
</asp:ObjectDataSource>
</div>
</form>