ValidationSummary.Render メソッド
アセンブリ: System.Web (system.web.dll 内)
構文
使用例
カスタム サーバー コントロールで Render メソッドをオーバーライドし、ValidationSummary コントロールを Small タグで囲む方法を次のコード例に示します。
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %> <%@ Page Language="VB" AutoEventWireup="True" %> <HTML> <HEAD> <title>Custom ValidationSummary - Render - VB.NET Example</title> </HEAD> <body> <form id="Form1" method="post" runat="server"> <h3>Custom ValidationSummary - Render - VB.NET Example</h3> <TABLE id="Table1" cellPadding="4" cellspacing="0"> <TR> <TD> <TABLE id="Table2" cellPadding="4" cellspacing="0" bgColor="#eeeeee"> <TR> <TD colSpan="3"><B>Credit Card Information</B> </TD> </TR> <TR> <TD align="right">Card Type: </TD> <TD><asp:RadioButtonList id="RadioButtonList1" runat="server" RepeatLayout="Flow"> <asp:ListItem>MasterCard</asp:ListItem> <asp:ListItem>Visa</asp:ListItem> </asp:RadioButtonList> </TD> <TD align="center" rowSpan="1"> <asp:RequiredFieldValidator id="RequiredFieldValidator1" runat="server" ErrorMessage="Card Type" Width="100%" Display="Static" ControlToValidate="RadioButtonList1">*</asp:RequiredFieldValidator> </TD> </TR> <TR> <TD align="right">Card Number: </TD> <TD><asp:TextBox id="TextBox1" runat="server"></asp:TextBox></TD> <TD> <asp:RequiredFieldValidator id="RequiredFieldValidator2" runat="server" ErrorMessage="Card Number" Width="100%" Display="Static" ControlToValidate="TextBox1">*</asp:RequiredFieldValidator> </TD> </TR> <TR> <TD></TD> <TD><asp:Button id="Button1" runat="server" text="Validate"></asp:Button></TD> <TD></TD> </TR> </TABLE> </TD> </TR> <TR> <TD vAlign="top"> <aspSample:CustomValidationSummaryRender id="ValidationSummary1" runat="server" DisplayMode="BulletList" HeaderText="You must enter a value in the following fields:" /> </TD> </TR> </TABLE> </form> </body> </HTML> <br /><span space="preserve">...</span><br />Imports System.Web Imports System.Security.Permissions Namespace Samples.AspNet.VB.Controls <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _ Public NotInheritable Class CustomValidationSummaryRender Inherits System.Web.UI.WebControls.ValidationSummary Protected Overrides Sub Render(ByVal writer As System.Web.UI.HtmlTextWriter) ' Write out begining Small HTML tag. writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Small) ' Call the base class's Render method. MyBase.Render(writer) ' Write out ending Small HTML tag. writer.RenderEndTag() End Sub End Class End Namespace
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %> <%@ Page Language="C#" AutoEventWireup="True" %> <HTML> <HEAD> <title>Custom ValidationSummary - Render - C# Example</title> </HEAD> <body> <form id="Form1" method="post" runat="server"> <h3>Custom ValidationSummary - Render - C# Example</h3> <TABLE id="Table1" cellPadding="4" cellspacing="0"> <TR> <TD> <TABLE id="Table2" cellPadding="4" cellspacing="0" bgColor="#eeeeee"> <TR> <TD colSpan="3"><B>Credit Card Information</B> </TD> </TR> <TR> <TD align="right">Card Type: </TD> <TD> <asp:RadioButtonList id="RadioButtonList1" runat="server" RepeatLayout="Flow"> <asp:ListItem>MasterCard</asp:ListItem> <asp:ListItem>Visa</asp:ListItem> </asp:RadioButtonList> </TD> <TD align="center" rowSpan="1"> <asp:RequiredFieldValidator id="RequiredFieldValidator1" runat="server" ErrorMessage="Card Type" Width="100%" Display="Static" ControlToValidate="RadioButtonList1">* </asp:RequiredFieldValidator> </TD> </TR> <TR> <TD align="right">Card Number: </TD> <TD><asp:TextBox id="TextBox1" runat="server"></asp:TextBox></TD> <TD> <asp:RequiredFieldValidator id="RequiredFieldValidator2" runat="server" ErrorMessage="Card Number" Width="100%" Display="Static" ControlToValidate="TextBox1">* </asp:RequiredFieldValidator> </TD> </TR> <TR> <TD></TD> <TD><asp:Button id="Button1" runat="server" text="Validate"></asp:Button></TD> <TD></TD> </TR> </TABLE> </TD> </TR> <TR> <TD vAlign="top"> <aspSample:CustomValidationSummaryRender id="ValidationSummary1" runat="server" DisplayMode="BulletList" HeaderText="You must enter a value in the following fields:" /> </TD> </TR> </TABLE> </form> </body> </HTML> <br /><span space="preserve">...</span><br />using System.Web; using System.Security.Permissions; namespace Samples.AspNet.CS.Controls { [AspNetHostingPermission(SecurityAction.Demand, Level=AspNetHostingPermissionLevel.Minimal)] public sealed class CustomValidationSummaryRender : System.Web.UI.WebControls.ValidationSummary { protected override void Render(System.Web.UI.HtmlTextWriter writer) { // Write out begining Small HTML tag. writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Small); // Call the base class's Render method. base.Render(writer); // Write out ending Small HTML tag. writer.RenderEndTag(); } } }
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL.Controls" Assembly="Samples.AspNet.JSL" %> <%@ Page Language="VJ#" AutoEventWireup="True" %> <HTML> <HEAD> <title>Custom ValidationSummary - Render - VJ# Example</title> </HEAD> <body> <form id="Form1" method="post" runat="server"> <h3>Custom ValidationSummary - Render - VJ# Example</h3> <TABLE id="Table1" cellPadding="4" cellspacing="0"> <TR> <TD> <TABLE id="Table2" cellPadding="4" cellspacing="0" bgColor="#eeeeee"> <TR> <TD colSpan="3"><B>Credit Card Information</B> </TD> </TR> <TR> <TD align="right">Card Type: </TD> <TD> <asp:RadioButtonList id="RadioButtonList1" runat="server" RepeatLayout="Flow"> <asp:ListItem>MasterCard</asp:ListItem> <asp:ListItem>Visa</asp:ListItem> </asp:RadioButtonList> </TD> <TD align="center" rowSpan="1"> <asp:RequiredFieldValidator id="RequiredFieldValidator1" runat="server" ErrorMessage="Card Type" Width="100%" Display="Static" ControlToValidate="RadioButtonList1">* </asp:RequiredFieldValidator> </TD> </TR> <TR> <TD align="right">Card Number: </TD> <TD><asp:TextBox id="TextBox1" runat="server"></asp:TextBox></TD> <TD> <asp:RequiredFieldValidator id="RequiredFieldValidator2" runat="server" ErrorMessage="Card Number" Width="100%" Display="Static" ControlToValidate="TextBox1">* </asp:RequiredFieldValidator> </TD> </TR> <TR> <TD></TD> <TD><asp:Button id="Button1" runat="server" text="Validate"></asp:Button></TD> <TD></TD> </TR> </TABLE> </TD> </TR> <TR> <TD vAlign="top"> <aspSample:CustomValidationSummaryRender id="ValidationSummary1" runat="server" DisplayMode="BulletList" HeaderText="You must enter a value in the following fields:" /> </TD> </TR> </TABLE> </form> </body> </HTML> <br /><span space="preserve">...</span><br />package Samples.AspNet.JSL.Controls; public class CustomValidationSummaryRender extends System.Web.UI.WebControls.ValidationSummary { protected void Render(System.Web.UI.HtmlTextWriter writer) { // Write out begining Small HTML tag. writer.RenderBeginTag(System.Web.UI.HtmlTextWriterTag.Small); // Call the base class's Render method. super.Render(writer); // Write out ending Small HTML tag. writer.RenderEndTag(); } //Render } //CustomValidationSummaryRender
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
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参照
- ValidationSummary.Render メソッドのページへのリンク