If txtFDescription.Text = String.Empty ThenĮrrorProvider1. This control provides a user interface that indicates to user that a control on a form has error associated with it. Private Sub txtFDescription_Validating(sender As Object, e As ) Handles txtFDescription.Validating Curso completo de Visual Basic.Net desde cero, En esta entrada se detalla el uso del control errorprovider para mostrar iconos de validacin y errror en el lenguaje de programacin Visual Basic, crearemos una pequea aplicacin para mostrar dichas validaciones de string validaciones Double y validaciones int32 en Visual Basic.
#Errorprovider vb zip#
Private Sub txtZipCode_Validating(sender As Object, e As ) Handles txtZipCode.ValidatingĮrrorProvider1.SetError(txtZipCode, "Provide a valid zip code!") If I click on the save button and trigger the event of button control causes ValidateChildren() once for txtFDescription.text validating not the other 4 more validating controls.It means if provide a valid data in txtFDescription and then click on the save button one more but ValidateChildren does not work after once usage as interestingly even I could not provided data for the other 4 controls. MessageBox.Show("You must check some controls that whether input or not " & vbCrLf & "because program needs those controls provided data") Switch() ' to set switchValue's value true=1 false=0īeforeSave() ' checking some controls before savingĭim strInsert As String = "INSERT INTO tbFirm VALUES(" & intInputInterest.Text & " ,'" & Format(Me.dtpAgreement.Value, "yyyy-MM-dd") & "') SELECT SCOPE_IDENTITY() AS nFirmID"ĭim SqlCmdForTbFirm As New SqlCommand(strInsert, sConn)ĭim getReturnFirmID As Short = CShort(SqlCmdForTbFirm.ExecuteScalar())ĭim strInsertGroups As String = "INSERT INTO tbFirmGroups VALUES(" & getReturnFirmID & ",'" & txtBtnFGrp1.Text & "')"ĭim SqlCmdForTbFirmGroups As New SqlCommand(strInsertGroups, sConn)
If (sConn.State = ConnectionState.Closed) Then Private Sub btnFSave_Click(sender As Object, e As EventArgs) Handles btnFSave.Click I am sorry for saying these words but something does not work expected.
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