How To Use Errorprovider In C#
The ErrorProvider is a Winforms control. There is no equivalent in WPF. But you will still be able to find in in visual studio 2008 if you create a win forms project. You might want to take a look at this article on error validation in WPF. The Windows Forms ErrorProvider component is used to show the user in a non-intrusive way that something is wrong. It is typically used in conjunction with validating user input on a form, or displaying errors within a dataset. Jun 15, 2016 ErrorProvider Control System. ErrorProvider Provides a user interface for indicating that a control on a form has an error associated with it. Apr 18, 2020 Drag and drop ErrorProvider and TextBox control from toolbox on the window Form. Drag and drop a Button. Code: Private Sub Button1Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click If TextBox1.Text = ' Then ' condition is given so that empty textbox could not save.
Dxerrorprovider
Thanks for using Microsoft MSDN Managed Newsgroup. My name is Peter, and I
will be assisting you on this issue.
First of all, I would like to confirm my understanding of your issue.
From your description, I understand that you wants to trap if an
ErrorProvider has errors.
Have I fully understood you? If there is anything I misunderstood, please
feel free to let me know.
I agree with Herfried's suggestion. I also has made a test.
Dim err As System.Windows.Forms.ErrorProvider
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button1.Click
If Me.TextBox1.Text = ' Then
err.SetError(Me.TextBox1, 'Error1')
Else
' Clear the error, if any, in the error provider.
err.SetError(Me.TextBox1, ')
End If
If Me.TextBox2.Text = ' Then
err.SetError(Me.TextBox2, 'Error2')
Else
' Clear the error, if any, in the error provider.
err.SetError(Me.TextBox2, ')
End If
If err.GetError(Me.TextBox1).Length > 0 Or
err.GetError(Me.TextBox2).Length > 0 Then
MsgBox('HAS ERROR')
End If
End Sub
Private Sub Form2_Load(ByVal sender As Object, ByVal e As
System.EventArgs) Handles MyBase.Load
err = New System.Windows.Forms.ErrorProvider
End Sub
Please Apply My Suggestion Above And Let Me Know If It Helps Resolve Your
Problem.
Best regards,
Perter Huang
Microsoft Online Partner Support
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