validation control

Question

validation control

zal wel 20

how to supress the errir message of the normal valudation controls and only show the error messages from the summary control?

<%@ Page Language="C#"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
    
      Name:<br/>
      <asp:textbox id="NameTextBox"
        runat="server"/>
        
      <asp:requiredfieldvalidator id="NameTextBoxRequiredValidator"
        controltovalidate="NameTextBox"
errormessage="Name field."
        
        
        
        runat="server"/>     
        
      <br/>  
      
      City:<br/>
      <asp:textbox id="CityTextBox"
        runat="server"/>
        
      <asp:requiredfieldvalidator id="CityTextBoxRequiredValidator"
        controltovalidate="CityTextBox"
        errormessage="City field."
       
        
        runat="server"/> 
        
      <br/>
      
      <asp:Button id="SubmitButton"
        text="Submit"
        runat="server"/>
      
      <hr/>
      
      <asp:ValidationSummary 
        id="valSum" 
        displaymode="BulletList" 
        headertext="You must enter a value in the following fields:"
        runat="server"/>
    
    </form>
  </body>
</html>

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3 answers

Your answer

Answer 1

Hi @zal wel ,

Thanks for reaching out.

In ASP.NET Web Forms, each validation control can display its error message both inline (next to the input) and in the ValidationSummary.

If you want to suppress the inline messages and only show them in the ValidationSummary, you can set Display="None" on each validator.

For example:

<asp:RequiredFieldValidator
    ID="NameTextBoxRequiredValidator"
    runat="server"
    ControlToValidate="NameTextBox"
    ErrorMessage="Name field."
    Display="None" />

<asp:RequiredFieldValidator
    ID="CityTextBoxRequiredValidator"
    runat="server"
    ControlToValidate="CityTextBox"
    ErrorMessage="City field."
    Display="None" />

The ErrorMessage property is what gets picked up by the ValidationSummary. By setting Display="None", the validator will not render the message next to the textbox.

Your existing ValidationSummary can remain unchanged.

Alternatively, you can use the Text property for inline messages and keep ErrorMessage for the summary. However, if you want to completely suppress inline output, Display="None" is the simplest approach.

Hope this helps! If my answer was helpful, I would greatly appreciate it if you could follow the instructions here so others with the same problem can benefit as well.

Jack Dang (WICLOUD CORPORATION) 16,040 Reputation points Microsoft External Staff Moderator

2026-04-06T10:00:19.5766667+00:00

Hi @zal wel ,

If you're still interested or have any questions, feel free to reach out whenever it works best for you.

Answer 2

zal wel 20

the errormessage appears next to the textboxes bybthe way

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Answer 3

Q&A Assist

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Set the validators’ Text property to an empty string (or omit it) and rely only on ErrorMessage, which is what ValidationSummary uses.

For example:

<asp:RequiredFieldValidator ID="NameTextBoxRequiredValidator"
    runat="server"
    ControlToValidate="NameTextBox"
    ErrorMessage="Name field." 
    Text="" />

<asp:RequiredFieldValidator ID="CityTextBoxRequiredValidator"
    runat="server"
    ControlToValidate="CityTextBox"
    ErrorMessage="City field."
    Text="" />

With Text empty, no inline message is rendered next to the controls, but the ErrorMessage values still appear in the ValidationSummary.

References:

zal wel 20 Reputation points

2026-04-01T14:53:04.58+00:00

it displays also the error message?
zal wel 20 Reputation points

2026-04-01T17:49:59.2766667+00:00

thank you very much

i tried. It works but the errormessages are display.

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validation control

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