C textbox1validating

You can also display a custom error image instead of the default image.Now we will add code in our sample to validate the complete form when the "Create Appointment" button is clicked.To display the dataset column error, invoke the Set Column Error method of the Error Provider.You can customize the Error Provider control to set the Blink Rate and Blink Style.Code Snippet: Validate the Name Text Box Next we will add the validations for the text Box2 control which accepts Age as the data input.We will ensure that the Age is mandatory, is in numeric format and the user is 18 years or older.Public Class Form3 Private Sub Text Box1_Validating(By Val sender As Object, By Val e As System. Set Error(Text Box1, "Hello This box can not be blank please fill in") Else 'Clear the error for a valid entry made Error Provider1.

Within your "Accept" button click handler (the "save" button) process each control that Causes Validation to ensure that they are all valid... I got the following tip from "Windows Forms Programming in C#" by Chris Sells, from Addison Wesley. Hope this helps Jay "B-Dog" I have a form that has about 10 text boxes on it, they all have to be filled out before submitting is there a quick way to make sure that none are null or do I have to call out each textbox? Thanks I couldn't find exactly how to do it, I'm very new at VB but this is how I did it temporarily until I figured out the other way. The above code will cause the Validating event for each of your controls to be raised, ensuring that all the controls get validated, before the dialog is closed or the data is saved... None Exit For End If End If Next Note this version does not validate controls nested within other container controls, such as Group Boxes... Text = "" Then ' Cancel the event and select the text to be corrected by the user. Cancel = True End If End Sub Alternatively you can have all 8 use one routine. Controls If Type Of c Is Text Box Then If CType(c, Text Box). Harlow [MVP - Outlook]" B-Dog, In addition to adding handlers for the Validating event that Terry (OHM) suggested. (this gives you the red icon beside the control(s) that is not valid) ' form level variable Private _error1 As Boolean Private Sub txt LName_Validating(By Val sender As Object, By Val e As System. Set Error(txt LName, "") ' don't set _error1=false, cause other validators may have set it somewhere else... _error1 = False ' validate everything again (some control may have never gotten focus) Validate_LName() '^^^repeat for each control you want to validate 'if found an error abort... End Sub HTH, Greg "B-Dog" I couldn't find exactly how to do it, I'm very new at VB but this is how I did it temporarily until I figured out the other way. The above code will cause the Validating event for each of your controls Here is the pattern I follow... The above code will cause the Validating event for each of your controls to be raised, ensuring that all the controls get validated, before the dialog is closed or the data is saved... None Exit For End If End If Next Note this version does not validate controls nested within other container controls, such as Group Boxes... I heard using the validated event was the way to go cause it would show an icon next to the field that needs attention or something. I have textbox2 - 8 check to make sure all is filled out Dim c As Control For Each c In Me. Drag an Error Provider control from toolbox onto form. Validating Validate_LName() End Sub Private Sub Validate_LName() If txt LName. Set Error(txt LName, "Required field") _error1 = True Else Error Provider1. New Hire Details ' assume everything on form is Ok... None Exit For End If End If Next Note this version does not validate controls nested within other container controls, such as Group Boxes...Hi Everyone, In my form there is a "Validating" event on a textbox. Is there a way to not execute the "Validating" event when the user clicks on the "Cancel" button? I have a form that has about 10 text boxes on it, they all have to be filled out before submitting is there a quick way to make sure that none are null or do I have to call out each textbox? Thanks Create a handler for the first textbox by double clicking on it, Use the error provider and validated event.

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