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Validations in DevExpress controls

Posted By:Deepika Haridas Posted Date: October 27, 2010 Points: 15 Category: Validations URL: http://www.angeldeeps.blogspot.com

This code shows usage of validations in Devexpress controls.

This code shows usage of validations in Devexpress controls.

Note : I have tested this using version 9.2.3 and 9.3.2

ASPX Page

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ValidationsDev.aspx.cs" Inherits="ValidationsDev" %>

<%@ Register Assembly="DevExpress.Web.ASPxEditors.v9.2, Version=9.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a"
    Namespace="DevExpress.Web.ASPxEditors" TagPrefix="dx" %>
<%@ Register Assembly="DevExpress.Web.ASPxGridView.v9.2, Version=9.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a"
    Namespace="DevExpress.Web.ASPxGridView" TagPrefix="dxg" %>
    <%@ Register Assembly="DevExpress.Web.v9.2, Version=9.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxTabControl" TagPrefix="dxtc" %>

    <%@ Register Assembly="DevExpress.Web.v9.2, Version=9.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxPanel" TagPrefix="dxp" %>
<%@ Register Assembly="DevExpress.Web.v9.2, Version=9.2.3.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxRoundPanel" TagPrefix="dxrp" %> 



    Validations

    



    
    
        <%--Textbox validation example--%>
        
        
            
                
                
                
                    
                    
                    
                
            
            
        
        
        
            
                
                
                
                    
                    
                    
                
            
            
        
        <%--Combo box example--%>
        
        
            
                
                
            
            
                
                
                    
                    
                    
                
            
        
        

        <%--Get multiple values in combobox--%>
        
            
                
                
                
                
            
        
        
        <%--Get selected values in listbox --%>
        
            
                
                
                
            
        
        <%--Gridview on dropdown click--%>

Code behind page

using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class ValidationsDev : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void txtSample_Validation(object sender, DevExpress.Web.ASPxEditors.ValidationEventArgs e) { if ((e.Value as string).Length < 2) e.IsValid = false; } protected void txtAge_Validation(object sender, DevExpress.Web.ASPxEditors.ValidationEventArgs e) { string strAge = ((string)e.Value).TrimStart('0'); if (strAge.Length == 0) return; UInt32 age = 0; if (!UInt32.TryParse(strAge, out age) || age < 18) e.IsValid = false; } }

Validations in DevExpress controls

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