Button validating event vb net

Given how complex the dgv logic obviously is, MS ought to have documentation like this.

That brings home the point that the formatted value may be the cell value or the user-entered value depending on the state the dgv is in.

This example requires that a Text Box and Error Provider control have been created on a form.

My only suggested improvement is to display the formatted value along with the rest of the data in the left column.

Doing so can cause your application or the operating system to stop responding.

For more information, see the WM_KILLFOCUStopic, and the "Message Deadlocks" section of the About Messages and Message Queues topic.

Within your "Accept" button click handler (the "save" button) process each control that Causes Validation to ensure that they are all valid... (Assuming you are not placing conflicting date in there by the program) It will be executed as that control looses the focus. Cor Phill, Now I understood you, in fact do you want to check if they are not empty?

Hope this helps Jay "norton" Hi All, I am writing a simple win form which contains a button, when user click the button i want to validate all the other textbox and see if there is anything goes wrong may i know how can i trigger the validating event for all text box?

This was fixed by the following in the cancel button click event: Setting Causes Validation to false is the key, however this alone is not enough.I have a form w/ a textbox and Cancel button on it. When I click on the cancel button it doesn't even get to the cancel.click event until AFTER it has done the validating. As far as the original validation issue, I started a new project (VB2005) and tried your approach It works except that pressing the Esc key still causes the validation event to fire. According to the documentation: "The cancel button for a form is the button control that is clicked whenever the user presses the ESC key." Which says to me the behavior s/b the same! Validating If Not mbln Cancel Then Dim dte Date As Date Time If Date Time. Also note that the "trick" to closing the form is not keeping a seperate "canceling" flag, but to put "e.cancel=False" in the forms closing event.I have a routine to handle textbox.validating, and I have the form setup so the Cancel button is the Cancel button. I am going to start a new thread - calling it a bug and see what happens. Down (Down Arrow) and some how (and I never figured this one out) the next control in the tab order, regardless of the Tab Stop property, got focus. Causes Validation = False Public Class Form1 Private mbln Cancel As Boolean Private Sub Text Box1_Validating(By Val sender As Object, By Val e As System. -- Terry "Al Reid" wrote: Terry, I tried the same scenario in VB6 and found that it works the way one would expect AND there is no need for the m Cancel flag either.I have a validating event for a txtbox called txtname.If the user tries to leave txtname for another txt box without entering their name a messagebox comes up giving an error.

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