ASP.Net/Validation by Control/ValidationSummary

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Версия от 14:51, 26 мая 2010; Admin (обсуждение | вклад) (1 версия)
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Change invalid control background color (VB.net)

   <source lang="csharp">

<%@ Page Language="VB" %> <script runat="server"> 

   Sub Page_PreRender()
       For Each valControl As BaseValidator In Page.Validators
           Dim assControl As WebControl = Page.FindControl(valControl.ControlToValidate)
           If Not valControl.IsValid Then
               assControl.BackColor = Drawing.Color.Yellow
           Else
               assControl.BackColor = Drawing.Color.White
           End If
       Next
   End Sub

</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server"> 

   <title>Show Validators</title>

</head> <body> 

   <form id="form1" runat="server">

   <asp:Label
       id="lblFirstName"
       Text="First Name"
       AssociatedControlID="txtFirstName"
       Runat="server" />
   
    
   <asp:TextBox
       id="txtFirstName"
       Runat="server" />
   <asp:RequiredFieldValidator
       id="reqFirstName"
       ControlToValidate="txtFirstName"
       Text="(Required)"
       EnableClientScript="false"
       Runat="server" />   
    
   


       
   <asp:Label
       id="lblLastName"
       Text="Last Name"
       AssociatedControlID="txtLastName"
       Runat="server" />
   
    
   <asp:TextBox
       id="txtLastname"
       Runat="server" />
   <asp:RequiredFieldValidator
       id="reqLastName"
       ControlToValidate="txtLastName"
       Text="(Required)" 
       EnableClientScript="false"
       Runat="server" />   
    
    


    
    <asp:Button
       id="btnSubmit"
       Text="Submit"
       Runat="server" />   

   </form>

</body> </html> 

      </source>


Creating a Basic ValidationSummary Control (VB.net)

   <source lang="csharp">

<%@ Page Language=VB Debug=true %> <HTML> <HEAD> <TITLE>Creating a Basic ValidationSummary Control</TITLE> </HEAD> <form runat="server">
<asp:validationsummary 

   id="vsAllErrors" 
   showsummary="True"
   runat="server"
   headertext="For these reasons, your data could not be processed:"
   displaymode="list"
   font-name="Comic Sans MS" 
   font-size="12"

/>
Enter Your Name:
<asp:textbox 

   id="txtName" 
   runat=server

/> <asp:requiredfieldvalidator 

   id="rfvName"
   controltovalidate="txtName"
   errormessage="The name field is required!"
   runat=server

>

</asp:requiredfieldvalidator>
Please enter a Date:
<asp:textbox 

   id="txtDate" 
   runat=server

/> <asp:comparevalidator 

   id="cvCheckDate" 
   controltovalidate="txtDate" 
   operator="DataTypeCheck" 
   type="Date" 
   errormessage="The date field must be a date!"
   runat="server"

>

</asp:CompareValidator>

<asp:button 

   id="butOK"
   text="OK"
   type="Submit"
   runat="server"

/> </form> </BODY> </HTML> 

      </source>


Detail summary reason (VB.net)

   <source lang="csharp">

<%@ Page Language=VB Debug=true %> <HTML> <HEAD> <TITLE>Creating a Basic ValidationSummary Control</TITLE> </HEAD> <BODY LEFTMARGIN="40"> <form runat="server">
<asp:validationsummary 

   id="vsAllErrors" 
   showsummary="True"
   runat="server"
   headertext="For these reasons, your data could not be processed:"
   displaymode="bulletlist"
   font-name="Comic Sans MS" 
   font-size="12"

/>
Enter Your Name:
<asp:textbox 

   id="txtName" 
   runat=server

/> <asp:requiredfieldvalidator 

   id="rfvName"
   controltovalidate="txtName"
   errormessage="The name field is required!"
   runat=server

>

</asp:requiredfieldvalidator>
Please enter a Date:
<asp:textbox 

   id="txtDate" 
   runat=server

/> <asp:comparevalidator 

   id="cvCheckDate" 
   controltovalidate="txtDate" 
   operator="DataTypeCheck" 
   type="Date" 
   errormessage="The date field must be a date!"
   runat="server"

>

</asp:CompareValidator>

<asp:button 

   id="butOK"
   text="OK"
   type="Submit"
   runat="server"

/> </form> </BODY> </HTML> 

      </source>


Displaying Error Messages in a Message Box Using the ValidationSummary Control (VB.net)

   <source lang="csharp">

<%@ Page Language=VB Debug=true %> <HTML> <HEAD> <TITLE>Displaying Error Messages in a Message Box Using the ValidationSummary Control</TITLE> </HEAD> <BODY LEFTMARGIN="40"> <form runat="server">
<asp:validationsummary 

   id="vsAllErrors" 
   showsummary="False"
   showmessagebox="True"
   runat="server"
   headertext="For these reasons, your data could not be processed:"

/>
Enter Your Name:
<asp:textbox 

   id="txtName" 
   runat=server

/> <asp:requiredfieldvalidator 

   id="rfvName"
   controltovalidate="txtName"
   errormessage="The name field is required!"
   runat=server

>

</asp:requiredfieldvalidator>
Please enter a Date:
<asp:textbox 

   id="txtDate" 
   runat=server

/> <asp:comparevalidator 

   id="cvCheckDate" 
   controltovalidate="txtDate" 
   operator="DataTypeCheck" 
   type="Date" 
   errormessage="The date field must be a date!"
   runat="server"

>

</asp:CompareValidator>

<asp:button 

   id="butOK"
   text="OK"
   type="Submit"
   runat="server"

/> </form> </BODY> </HTML> 

      </source>


ValidationSummary Demo (VB.net)

   <source lang="csharp">

<%@ Page Language=VB Debug=true %> <%@ Import Namespace="System.Data" %> <script runat=server> </SCRIPT> <HTML> <HEAD> <TITLE>ValidationSummary Control Sample Page</TITLE> </HEAD> <BODY > <form runat="server"> <asp:ValidationSummary 

   ID="vsAllErros" 
   DisplayMode="BulletList" 
   ShowMessageBox="False"
   ShowSummary="True"
   runat="server"
   HeaderText="For these reasons, your data could not be processed:"
   Font-Name="Comic Sans MS" 
   Font-Size="12"

/>
<asp:Label 

   id="lblMessage"
   runat="server"
   Font-Bold="True"
   Text="Date"

/> <asp:TextBox 

   id="txtDateField" 
   Columns="25"
   MaxLength="30"
   runat=server

/> <asp:CompareValidator 

   id="cvDateField" 
   ControlToValidate="txtDateField" 
   Operator="DataTypeCheck" 
   Type="Date" 
   ErrorMessage="You must enter a date!"
   Display="Dynamic"
   Font-Size="10pt"
   runat="server">
   *

</asp:CompareValidator>

<asp:Label 

   id="lblMessage2"
   runat="server"
   Font-Bold="True"
   Text="Number"

/> <asp:TextBox 

   id="txtNumber" 
   Columns="25"
   MaxLength="30"
   runat=server

/> <asp:CompareValidator 

   id="cvNumber" 
   ControlToValidate="txtNumber" 
   Operator="DataTypeCheck" 
   Type="Integer" 
   ErrorMessage="You must enter a whole number!"
   Display="Dynamic"
   runat="server">
   *

</asp:CompareValidator>

<asp:Label 

   id="lblMessage3"
   runat="server"
   Font-Bold="True"
   Text="Make the same"

/> <asp:TextBox 

   id="txtSame1" 
   Columns="25"
   MaxLength="30"
   runat=server

/> <asp:TextBox 

   id="txtSame2" 
   Columns="25"
   MaxLength="30"
   runat=server

/> <asp:CompareValidator id="cvSame" 

   ControlToValidate="txtSame1" 
   ControlToCompare="txtSame2"
   ErrorMessage="Fields don"t match!"
   Display="Dynamic"
   Font-Name="Tahoma"
   Font-Size="10pt"
   runat=server>
   *

</asp:CompareValidator>

<asp:button 

   id="butOK"
   text="OK"
   Type="Submit"
   runat="server"

/> </Form> </BODY> </HTML> 

      </source>


Validation summary in action (VB.net)

   <source lang="csharp">

<%@ Page Language="vb" %> <html> <head> 

  <title>Validation Control Example</title>
   <script language="javascript">
   
  </script>
  <script runat="server">
     Sub Page_Load()
        vsSummary.DisplayMode = ValidationSummaryDisplayMode.List
     End Sub
     Sub ServerValidation (source As object, args As ServerValidateEventArgs)
        Dim RegExVal As New System.Text.RegularExpressions.Regex("^\d{4}$")
        If RegExVal.IsMatch(args.Value) Then
           args.IsValid = True
        Else
           args.IsValid = False
        End If
     End Sub
  </script>

</head> <body>

Validation Control Example

  <form runat="server">
     <asp:table id="MyTable" border="1" cellpadding="5" cellspacing="0" runat="server">
        <asp:tablerow runat="server">
           <asp:tablecell runat="server">
              Compare Validator Control:
              


              Enter two numbers to compare
           </asp:tablecell>
           <asp:tablecell runat="server">
              <asp:textbox id="value1" runat="server"/>

              <asp:textbox id="value2" runat="server"/>

              <asp:comparevalidator id="cvCompare" 
                 controltovalidate="value1" 
                 controltocompare="value2" 
                 operator="equal" 
                 type="integer" 
                 errormessage="Fields are not equal!" 
                 display="dynamic" 
                 runat="server"/>
           </asp:tablecell>
        </asp:tablerow>

        <asp:tablerow runat="server">
           <asp:tablecell runat="server">
              ValidationSummary Control:
           </asp:tablecell>
           <asp:tablecell runat="server">
              <asp:validationsummary id="vsSummary"
                 displaymode="bulletlist" 
                 headertext="Page has the following errors: "
                 showsummary="true" 
                 showmessagebox="false"
                 runat="server"/>
           </asp:tablecell>
        </asp:tablerow>
        <asp:tablerow runat="server">
           <asp:tablecell colspan="2" runat="server">
              <asp:button text="submit" runat="server"/>
           </asp:tablecell>
        </asp:tablerow>
     </asp:table>
     <asp:label id="MyLabel" runat="server"/>
  </form>

</body> </html> 

      </source>


Validation summary in code behind (C#)

   <source lang="csharp">

<%@ Page language="c#" src="ValidationSummary.aspx.cs" AutoEventWireup="false" Inherits="MyOwnValidationSummary" %> <HTML> 

 <body>
   <form id="Form1" method="post" runat="server">

A number (1 to 10): <asp:textbox id="txtValidated" runat="server"></asp:textbox>  <asp:rangevalidator id="RangeValidator" runat="server" Display="None" Type="Integer" MinimumValue="1" MaximumValue="10" ControlToValidate="txtValidated" ErrorMessage="The First Number Is Not In The Range"></asp:rangevalidator>

        Not validated:  <asp:textbox id="txtNotValidated" runat="server"></asp:textbox>


<asp:button id="cmdOK" runat="server" Text="OK"></asp:button>

<asp:label id="lblMessage" runat="server" EnableViewState="False"></asp:label>

<asp:ValidationSummary id="ValidationSummary1" runat="server" ShowMessageBox="True"></asp:ValidationSummary>

   </form>
 </body>

</HTML>

<%-- using System; using System.Collections; using System.ruponentModel; using System.Data; using System.Drawing; using System.Web; using System.Web.SessionState; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.HtmlControls; 

 public class MyOwnValidationSummary : System.Web.UI.Page
 {
   protected System.Web.UI.WebControls.TextBox txtValidated;
   protected System.Web.UI.WebControls.RangeValidator RangeValidator;
   protected System.Web.UI.WebControls.TextBox txtNotValidated;
   protected System.Web.UI.WebControls.Button cmdOK;
   protected System.Web.UI.WebControls.Label lblMessage;
   protected System.Web.UI.WebControls.ValidationSummary ValidationSummary1;
 
   private void Page_Load(object sender, System.EventArgs e)
   {
     // Put user code to initialize the page here
   }
   #region Web Form Designer generated code
   override protected void OnInit(EventArgs e)
   {
     //
     // CODEGEN: This call is required by the ASP.NET Web Form Designer.
     //
     InitializeComponent();
     base.OnInit(e);
   }
   
   /// <summary>
   /// Required method for Designer support - do not modify
   /// the contents of this method with the code editor.
   /// </summary>
   private void InitializeComponent()
   {    
     this.cmdOK.Click += new System.EventHandler(this.cmdOK_Click);
     this.Load += new System.EventHandler(this.Page_Load);
   }
   #endregion
   private void cmdOK_Click(object sender, System.EventArgs e)
   {
     if (!this.IsValid) return;
     lblMessage.Text = "cmdOK_Click event handler executed.";
   }
 }

--%> 

      </source>
Источник — «http://nfex.ru/index.php?title=ASP.Net/Validation_by_Control/ValidationSummary&oldid=1813»