当asp.net编辑模板验证控件运行时，c# IsVaild不会翻转为False，应该返回False
本文关键字：False 翻转 asp 返回 IsVaild 编辑 验证 控件 运行时 net | 更新日期: 2023-09-27 18:10:27
我有一个为我们的人力资源系统跟踪公司假期的页面，但是现在，如果您尝试编辑假期的结束日期，并且用户不小心输入了在开始日期之前的结束日期，它仍然验证为真，并允许将编辑写入数据库表。
我错过了什么，使页面总是验证为True?我在这个页面上也有一个DetailsView，它使用了一组验证控件，它正在工作，当某些东西没有通过验证时，它将验证为false。
protected void HolidaysDS_Updated(object sender, SqlDataSourceStatusEventArgs e)
{
if (e.Exception != null)
{
lblNullUpdate.Text = "One of your updated fields is invalid. Your update did not occur.";
lblNullUpdate.Visible = true;
e.ExceptionHandled = true;
}
}
protected void gvHolidays_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
Page.Validate("EditValidationControls");
if (Page.IsValid == false)
{
e.Cancel = true;
}
lblNullUpdate.Visible = false;
}
这是我当前的c#处理异常，如果用户在更新中传递null，以及应该验证页面并检查是否所有内容都有效的事件。
<h2>Holidays</h2>
<asp:Label ID="lblHolidayYear" runat="server" Text="Holiday Year:" AssociatedControlID="ddlHolidayYears"></asp:Label>
<asp:DropDownList ID="ddlHolidayYears" runat="server" AutoPostBack="True"
DataSourceID="HolidayYearDS" DataTextField="HYear" DataValueField="HYear">
</asp:DropDownList>
<asp:GridView ID="gv_Holidays" runat="server" AutoGenerateColumns="False"
DataKeyNames="HolidayID"
DataSourceID="HolidaysDS"
AllowSorting="True"
CssClass="gvhours"
HeaderStyle-CssClass="header"
AlternatingRowStyle-CssClass="alternating"
SortedAscendingHeaderStyle-CssClass="sortasc-header"
SortedDescendingHeaderStyle-CssClass="sortdesc-header"
CommandRowStyle-CssClass="command"
PagerStyle-CssClass="page"
OnRowUpdating="gvHolidays_RowUpdating">
<AlternatingRowStyle CssClass="alternating" />
<Columns>
<asp:CommandField ShowEditButton="true"
ValidationGroup="EditValidationControls" />
<asp:BoundField DataField="HolidayID" HeaderText="HolidayID" InsertVisible="False"
ReadOnly="True" SortExpression="HolidayID" Visible="False"
ShowHeader="False" />
<asp:BoundField DataField="HYear" HeaderText="Year" SortExpression="HYear" Visible="false" />
<asp:BoundField DataField="HStartDate" DataFormatString="{0:MM/dd/yyyy}"
HeaderText="Start Date" SortExpression="HStartDate" />
<asp:BoundField DataField="HEndDate" DataFormatString="{0:MM/dd/yyyy}"
HeaderText="End Date" SortExpression="HEndDate" />
<asp:BoundField DataField="HDescription" HeaderText="Description"
SortExpression="HDescription" />
</Columns>
<HeaderStyle CssClass="header" />
<PagerStyle CssClass="page" />
<SortedAscendingHeaderStyle CssClass="sortasc-header" />
<SortedDescendingHeaderStyle CssClass="sortdesc-header" />
</asp:GridView>
<asp:Label ID="lblNullUpdate" runat="server" Font-Bold="True" Font-Size="Large"
ForeColor="Red" Text="Label" Visible="False"></asp:Label>
<asp:SqlDataSource ID="HolidaysDS" runat="server" OnInserted="HolidaysDS_Inserted"
OnUpdated="HolidaysDS_Updated"
ConnectionString="<%$ ConnectionStrings:TigerTimeTrackerConnectionString %>"
ProviderName="<%$ ConnectionStrings:TigerTimeTracker_ConnectionString.ProviderName %>"
InsertCommand="usp_Holidays_Add_Holiday"
InsertCommandType="StoredProcedure"
SelectCommand="usp_Holidays_Get_Holidays_By_Year"
SelectCommandType="StoredProcedure"
UpdateCommand="usp_Holidays_Update_Holiday"
UpdateCommandType="StoredProcedure">
<SelectParameters>
<asp:ControlParameter ControlID="ddlHolidayYears" Name="Year"
PropertyName="SelectedValue" Type="String" />
</SelectParameters>
<UpdateParameters>
<asp:Parameter Name="HolidayID" Type="Int32" />
<asp:ControlParameter ControlID="ddlHolidayYears" Name="HYear" PropertyName="SelectedValue" Type="String" />
<asp:Parameter Name="HStartDate" Type="DateTime" />
<asp:Parameter Name="HEndDate" Type="DateTime" />
<asp:Parameter Name="HDescription" Type="String" />
</UpdateParameters>
<InsertParameters>
<asp:Parameter Name="Year" Type="String" />
<asp:Parameter Name="StartDate" Type="DateTime" />
<asp:Parameter Name="EndDate" Type="DateTime" />
<asp:Parameter Name="Description" Type="String" />
</InsertParameters>
</asp:SqlDataSource>
<asp:SqlDataSource ID="HolidayYearDS" runat="server"
ConnectionString="<%$ ConnectionStrings:TigerTimeTracker_ConnectionString %>"
ProviderName="<%$ ConnectionStrings:TigerTimeTracker_ConnectionString.ProviderName %>"
SelectCommand="usp_Holidays_Get_Distinct_Holiday_Years"
SelectCommandType="StoredProcedure" >
</asp:SqlDataSource>
<asp:DetailsView ID="dvHolidays" runat="server" Height="50px" Width="125px"
AutoGenerateRows="False"
DataKeyNames="HolidayID"
DataSourceID="HolidaysDS"
DefaultMode="Insert"
CssClass="dView"
HeaderStyle-CssClass="header"
FieldHeaderStyle-CssClass="fieldHeader"
AlternatingRowStyle-CssClass="alternating"
CommandRowStyle-CssClass="command"
PagerStyle-CssClass="page"
FooterStyle-CssClass="footer"
OnItemInserted="dvHolidays_ItemInserted"
OnItemInserting="dvHolidays_ItemInserting">
<AlternatingRowStyle CssClass="alternating" />
<CommandRowStyle CssClass="command" />
<FieldHeaderStyle CssClass="fieldHeader" />
<Fields>
<asp:BoundField DataField="HolidayID" HeaderText="HolidayID"
InsertVisible="False" ReadOnly="True" SortExpression="HolidayID" />
<asp:TemplateField HeaderText="Year: " SortExpression="HYear">
<InsertItemTemplate>
<asp:TextBox ID="txtHolidayYear" runat="server" Text='<%# Bind("Year") %>'></asp:TextBox>
<asp:RequiredFieldValidator ID="YearRequiredValidator" runat="server" ValidationGroup="InsertValidationControls" ControlToValidate="txtHolidayYear"
ErrorMessage="Required"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="YearLengthValidator" runat="server" ValidationGroup="InsertValidationControls" ControlToValidate="txtHolidayYear"
ValidationExpression="^[0-9]{4,4}$" ErrorMessage="The Year can only be numeric(0-9), and has to be four digits."></asp:RegularExpressionValidator>
</InsertItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Start Date: " SortExpression="HStartDate">
<EditItemTemplate>
<asp:TextBox ID="txtHolidayStartEdit" runat="server" Text='<%# Bind("HStartDate") %>' ClientIDMode="Static"></asp:TextBox>
<asp:RequiredFieldValidator ID="HolidayStartEditRequiredValidator" runat="server" ValidationGroup="EditValidationControls" ControlToValidate="txtHolidayStartEdit"
ErrorMessage="Required"></asp:RequiredFieldValidator>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="txtHolidayStartInsert" runat="server" Text='<%# Bind("StartDate") %>' ClientIDMode="Static"></asp:TextBox>
<asp:RequiredFieldValidator ID="HolidayStartInsertRequiredValidator" runat="server" ValidationGroup="InsertValidationControls" ControlToValidate="txtHolidayStartInsert"
ErrorMessage="Required"></asp:RequiredFieldValidator>
</InsertItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="End Date: " SortExpression="HEndDate">
<EditItemTemplate>
<asp:TextBox ID="txtHolidayEndEdit" runat="server" Text='<%# Bind("HEndDate") %>' ClientIDMode="Static"></asp:TextBox>
<asp:RequiredFieldValidator ID="HolidayEndEditRequiredValidator" runat="server" ValidationGroup="EditValidationControls" ControlToValidate="txtHolidayEndEdit"
ErrorMessage="Required"></asp:RequiredFieldValidator>
<asp:CompareValidator ID="HolidayRangeCheckEdit" runat="server" ValidationGroup="EditValidationControls" ControlToValidate="txtHolidayEndEdit" ErrorMessage="End Date must be after Start Date."
ControlToCompare="txtHolidayStartEdit" Operator="GreaterThanEqual" Type="Date"></asp:CompareValidator>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="txtHolidayEndInsert" runat="server" Text='<%# Bind("EndDate") %>' ClientIDMode="Static"></asp:TextBox>
<asp:RequiredFieldValidator ID="HolidayEndInsertRequiredValidator" runat="server" ValidationGroup="InsertValidationControls" ControlToValidate="txtHolidayEndInsert"
ErrorMessage="Required"></asp:RequiredFieldValidator>
<asp:CompareValidator ID="HolidayRangeCheckInsert" runat="server" ValidationGroup="InsertValidationControls" ControlToValidate="txtHolidayEndInsert"
ControlToCompare="txtHolidayStartInsert" Operator="GreaterThanEqual" Type="Date" ErrorMessage="Please enter an End Date that is after the Start Date."></asp:CompareValidator>
</InsertItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Description: " SortExpression="HDescription">
<EditItemTemplate>
<asp:TextBox ID="txtHolidayDescriptionEdit" runat="server" Text='<%# Bind("HDescription") %>'></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBox ID="txtHolidayDescriptionInsert" runat="server" Text='<%# Bind("Description") %>'></asp:TextBox>
</InsertItemTemplate>
</asp:TemplateField>
<asp:CommandField ShowInsertButton="true"
ValidationGroup="InsertValidationControls"/>
</Fields>
<FooterStyle CssClass="footer" />
<HeaderStyle CssClass="header" />
<PagerStyle CssClass="page" />
</asp:DetailsView>
<asp:Label ID="lblInsertUniqueError" runat="server" Font-Bold="True"
Font-Size="Large" ForeColor="Red" Text="Label" Visible="False"></asp:Label>
</asp:View>
问题是我在gridview中使用绑定字段而不是模板字段。这里是我更新的代码，为任何人谁遇到这个问题。
<asp:GridView ID="gv_Holidays" runat="server" AutoGenerateColumns="False"
DataKeyNames="HolidayID"
DataSourceID="HolidaysDS"
AllowSorting="True"
CssClass="gvhours"
HeaderStyle-CssClass="header"
AlternatingRowStyle-CssClass="alternating"
SortedAscendingHeaderStyle-CssClass="sortasc-header"
SortedDescendingHeaderStyle-CssClass="sortdesc-header"
CommandRowStyle-CssClass="command"
PagerStyle-CssClass="page"
OnRowUpdating="gvHolidays_RowUpdating">
<AlternatingRowStyle CssClass="alternating" />
<Columns>
<asp:CommandField ShowEditButton="true"
ValidationGroup="EditValidationControls" />
<asp:BoundField DataField="HolidayID" HeaderText="HolidayID" InsertVisible="False"
ReadOnly="True" SortExpression="HolidayID" Visible="False"
ShowHeader="False" />
<asp:BoundField DataField="HYear" HeaderText="Year" SortExpression="HYear" Visible="false" />
<asp:TemplateField HeaderText="Start Date" SortExpression="HStartDate" >
<EditItemTemplate>
<asp:TextBox ID="txtHolidayStartEdit" runat="server" Text='<%# Bind("HStartDate", "{0:MM/dd/yyyy}") %>' ClientIDMode="Static"></asp:TextBox>
<asp:RequiredFieldValidator ID="HolidayStartEditRequiredValidator" runat="server" ValidationGroup="EditValidationControls" ControlToValidate="txtHolidayStartEdit"
ErrorMessage="Required"></asp:RequiredFieldValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblStartItem" runat="server" Text='<%# Bind("HStartDate", "{0:MM/dd/yyyy}") %>' ></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="End Date" SortExpression="HEndDate" >
<EditItemTemplate>
<asp:TextBox ID="txtHolidayEndEdit" runat="server" Text='<%# Bind("HEndDate", "{0:MM/dd/yyyy}") %>' ClientIDMode="Static"></asp:TextBox>
<asp:RequiredFieldValidator ID="HolidayEndEditRequiredValidator" runat="server" ValidationGroup="EditValidationControls" ControlToValidate="txtHolidayEndEdit"
ErrorMessage="Required"></asp:RequiredFieldValidator>
<asp:CompareValidator ID="HolidayRangeCheckEdit" runat="server" ValidationGroup="EditValidationControls" ControlToValidate="txtHolidayEndEdit" ErrorMessage="End Date must be after Start Date."
ControlToCompare="txtHolidayStartEdit" Operator="GreaterThanEqual" Type="Date"></asp:CompareValidator>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblEndItem" runat="server" Text='<%# Bind("HEndDate", "{0:MM/dd/yyyy}") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="HDescription" HeaderText="Description"
SortExpression="HDescription" />
</Columns>
<HeaderStyle CssClass="header" />
<PagerStyle CssClass="page" />
<SortedAscendingHeaderStyle CssClass="sortasc-header" />
<SortedDescendingHeaderStyle CssClass="sortdesc-header" />
</asp:GridView>