Validating event of text box in vb net
If you click on button 2, the button 1 validating event will fire and the program will display the messagebox. Cheers, Randy Al Santino wrote: Hi, It appears displaying a messagebox in a validating event will cancel thesubsequent event. Validating, Address Of Btn Validating btn = New Button btn. The click event will not fire simply because a button get's the focus.
After you close the message box, button 2 will get the focus but its click event will not _have fired_. Net 2003) and can confirm that I see the same (inappropriate) behaviour. I hope someone can provide an explanation and/or workaround. In the program below, button 2's click event doesn'tfire if you open a dialog box in button 1's validating event. Thanks Al Imports system Imports system.windows.forms' Create a form, add two buttons and event handlers.' Click on Button 2 to receive Button 1 validating' event but not button 2's click event. Module Validate Test Sub Main() Dim frm As New Form() Dim btn As New Button btn. -- Rinze van Huizen C-Services Holland b.v Now that I think about it, the button click event is not fired until the button is *released*.
The second is to do something like what I did below.
I took the tool bar mouse down event and gave focus to a control like a button in this case when that event fires.
Hi riteinfotech; Although the tool bar has a Causes Validation property and set to true the tool bar does not seem to trigger the Validating event of the previous control (Textbox) as it should. The only way I was able to get the toolbar to receive focus was by setting a timer to go off and in that event do Toolbar1. But still the text box event Validating did not fire.
Private Sub Tool Bar1_Mouse Down(By Val sender As Object, _ By Val e As System. hence, i tried something similar to that which is much easier.coding under the properties of that object you wanna make it lose focus for eg: textbox set the properties under autopostback=true when u tab out or onmouse click on whereever, the validating event will fire makes life better... hope it helps make sure under the object(textbox/label), the properties of Causes Validation is set to True...double click on the object(textbox/label) and dump your codes there..' Click on Button 2 to receive Button 1 validating ' event but not button 2's click event. Module Validate Test Sub Main() Dim frm As New Form() Dim btn As New Button btn. Suppose you entered invalid data into the textbox and clicked the button, should the button click event still be fired if the textbox was not validated? If the textbox has the word hello in it when Button2 is clicked, should Button2's event fire anyway? I think the OP's problem is because of the Message Box. But I'd like to use this in the case where someone enters fills in some controls on a form and then chooses to close the form. If the textbox has the word hello in it when Button2 is clicked, should Button2's event fire anyway? I think the OP's problem is because of the Message Box. Either way, I can't see how to use this idea to come up with a work-around.I'm beginning to think this is by design, perhaps a bit unexpected, but by design. It steals focus from Button2 so that when the mouse is release, the message is not being sent to button 2. I want to give them a choice of canceling the quit, proceeding without saving, or proceeding and saving. I would expect that setting the cancel arguement to "true" would cancel the subsequent click event and setting it to false would not. It steals focus from Button2 so that when the mouse is release, the message is not being sent to button 2. But it sounds as if, rather than using the Message Box as part of validating the contents of a control, you are actually using it to validate the closing of the form.