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Articles / Web Development / ASP.NET
Posted 6 Apr 2004


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Project file which will validate for XML with XSD

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3.77/5 (11 votes)
6 Apr 2004
Validating XML for the given XSD. Output is displayed in a textarea.


In this project, you can select your XML file and corresponding XSD file. And you can do a validation.

Error on validation will be shown in the text area below the form. Here is the function which validates the XML:

Private Sub XMLvalidate_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles XMLvalidate.Click
        If Trim(txtXMLname.Text) = "" Or Trim(txtDTDname.Text) = "" Then
            MsgBox("Please select XML/XSD file", MsgBoxStyle.Information)
            Exit Sub
        End If
        Dim tr As XmlTextReader = New XmlTextReader(strXMLFileName)
        Dim sc As XmlSchemaCollection = New XmlSchemaCollection()
        Dim vr As XmlValidatingReader = New XmlValidatingReader(tr)
            txtMsg.Text = ""
            sc.Add(Nothing, strDTDFileName)
            vr.ValidationType = ValidationType.Schema
            AddHandler vr.ValidationEventHandler, AddressOf ValidationCallBack
            While (vr.Read())
            End While
            txtMsg.Text = txtMsg.Text & "Validation Success"
            txtMsg.Text = txtMsg.Text & vbCrLf
        Catch ee As Exception
            txtMsg.Text = ee.Message & ":" & ee.Source
        End Try
    End Sub


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About the Author

Anil Gopalakrishnan
Team Leader
India India
No Biography provided

Comments and Discussions

Generalgood application and test code Pin
Donsw24-Aug-09 6:59
MemberDonsw24-Aug-09 6:59 
good application and test code, I needed something quick and found yours. this worked and did what I needed. congrats, I did check anothers program which did not work. I gave them a 2, I gave you a 4 for having a working, small, clean code.

My Recent Article : Backup of Data files - Full and Incremental

GeneralValidating when the XML refuses to refence your XSD Pin
scott.leckie11-Jul-09 15:28
Memberscott.leckie11-Jul-09 15:28 
Generalminoccurs validation Pin
RHBKV21-Nov-07 18:22
MemberRHBKV21-Nov-07 18:22 
GeneralRe: minoccurs validation Pin
Anil Gopalakrishnan22-Nov-07 17:56
MemberAnil Gopalakrishnan22-Nov-07 17:56 
QuestionRe: minoccurs validation Pin
RHBKV27-Nov-07 23:40
MemberRHBKV27-Nov-07 23:40 
GeneralNice app Pin
ceejeeb14-Aug-07 5:15
Memberceejeeb14-Aug-07 5:15 
GeneralRe: Nice app Pin
Anil Gopalakrishnan16-Aug-07 19:55
MemberAnil Gopalakrishnan16-Aug-07 19:55 
GeneralNice little app... Pin
InteractiveLogic22-Jul-04 7:31
MemberInteractiveLogic22-Jul-04 7:31 

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