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 It does not display the tool tip and error icon.I am sorry for saying these words but something does not work expected. Now write some text in the TextBoxes and click on the Button. Now write the name and country on the TextBoxes and click on the Button. T he error message will be display as a ToolTip. Now run the application and click on the Button without entering any text in the TextBoxes. Now move the mouse over the SetError Method. SetError Method - The SetError method is used to display an error string message on the specified control. ![]() Private void button1_Click( object sender, EventArgs e)ĮrrorProvider1.SetError(textBoxName, "Please enter the Name") ĮrrorProvider1.SetError(textBoxCountry, "Please enter the Country") ĮrrorProvider1.SetError(textBoxCity, "Please enter the City") ĮrrorProvider1.SetError(textBoxPnumber, "Please enter the Phone Number") Public partial class ErrorProvider : Form ![]() Now suppose you do not write any text in the TextBoxes on the form and click on the Button an icon will be displayed to the TextBoxes that show an error and the specified text will appear in the ToolTip box when the mouse is over the control. BlinkStyle - Controls whether the error icon blinks when an error is set.Icon - Icon property are used to indicate an error.Now select the ErrorProvider control and press F4 to set the the following property of the ErrorProvider control: Add new windows Form and give it a nameįirst of all drag the TextBoxes control, Button and ErrorProvider control from the Toolbox on the form.Now add a new page to the Windows Forms application. Now you have to create a Windows Forms application. First of all you create a Windows Forms application in Visual Studio 2010. All you have to do is implement and hook it up to your application. ![]() ![]() When an error message is set, an icon indicating the error will appear next to the control and the error message is displayed as a ToolTip when the mouse is over the control. Here, you will see a demo of the Errorprovider control with a ToolTip. The ErrorProvider control provides a user interface to indicate to the user that a control on a form has an error associated with it, or the ErrorProvider component provides an easy way to set validation errors. Today, I have provided an article showing you how to use the ErrorProvider control in a Windows Forms application.
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