Description:          

Validate the textbox control whether it has data or not

 Imports System

Imports System.Windows.Forms

Imports System.Drawing

Public Class validation_keyevent

    Private Sub TextBox2_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TextBox2.Validating

        If TextBox2.Text = "" Then

            Me.AutoScaleBaseSize = New System.Drawing.Size(5, 15)

            Me.Text = "Error Provider Validation"

            ErrorProvider1.SetError(sender, "You must Provide the First Name")

        Else

            ErrorProvider1.SetError(sender, "")

        End If

    End Sub

    Private Sub TextBox3_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TextBox3.Validating

        If TextBox3.Text = "" Then

            Me.AutoScaleBaseSize = New System.Drawing.Size(5, 15)

            Me.Text = "Error Provider Validation"

            ErrorProvider2.SetError(sender, "You must Provide the Last Name")

        Else

            ErrorProvider2.SetError(sender, "")

        End If

    End Sub

    Private Sub TextBox4_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TextBox4.Validating

        If TextBox4.Text = "" Then

            Me.AutoScaleBaseSize = New System.Drawing.Size(5, 15)

            Me.Text = "Error Provider Validation"

            ErrorProvider3.SetError(sender, "You must Provide Address")

        Else

            ErrorProvider3.SetError(sender, "")

        End If

    End Sub

    Private Sub TextBox6_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TextBox6.Validating

        Select Case TextBox6.Text.Length

            Case 0

                ErrorProvider5.SetError(sender, _TextBox6.Name & " " & "must provide six digits pincode")

            Case 1

                ErrorProvider5.SetError(sender, _TextBox6.Name & " " & "must contain exactly six digits")

            Case 2

                ErrorProvider5.SetError(sender, _TextBox6.Name & " " & "must contain exactly six digits")

            Case 3

                ErrorProvider5.SetError(sender, _TextBox6.Name & " " & "must contain exactly six digits")

            Case 4

                ErrorProvider5.SetError(sender, _TextBox6.Name & " " & "must contain exactly six digits")

            Case 5

                ErrorProvider5.SetError(sender, _TextBox6.Name & " " & "must contain exactly six digits")

            Case Else

                ErrorProvider5.SetError(sender, "")

        End Select

    End Sub

    Private Sub TextBox5_Validating(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles TextBox5.Validating

        If TextBox5.Text = "" Then

            Me.AutoScaleBaseSize = New System.Drawing.Size(5, 15)

            Me.Text = "Error Provider Validation"

            ErrorProvider4.SetError(sender, "You must Provide City")

        Else

            ErrorProvider4.SetError(sender, "")

        End If