WebForms in a DataGrid
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Validation in a DataGrid

Validating in a DataGrid

Validating the data before it is even submitted saves a round-trip. However, for some database logic you may need to have a round-trip (for CustomValidators).

<%# Container.DataItem("Age") %>
<asp:RegularExpressionValidator runat="server" ControlToValidate="txtAge" ErrorMessage="Invalid input for Age"
ValidationExpression="[0-9]{2}" /><br>
<asp:textbox runat="server" id="txtAge" value='<%# Container.DataItem("Age") %>' />

Live Demo

This checks to make sure that it is a two digit number.


This article has more been about using TemplateColumns than using web forms, however we have used a series of server controls (RadioButton, checkbox and validation) in a DataGrid to give it more functionality. In the related article - "Using Dropdowns in DataGrids" I will explore using a DropDownList which is more complicated than the usual server controls.

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User Comments

Title: Data grid   
Name: manishsrivastava
Date: 2005-05-04 7:28:14 AM
It is realy good for new users of asp.net & gide them how to work in right way.Continu providing codes i m greateful for that.
Title: nice content   
Name: mohit
Date: 2005-04-13 9:45:10 AM
good content but u will have to work on your presentation buddy it is very cumbersome looking
Title: std   
Name: setiadi
Date: 2005-03-04 6:59:53 AM
thank's for your information

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