I am undure of the order of execution when a postback occurs. What happens when somebody pushes a button on my vb .net page? Does onLoad run first? Or the buttons event handler? I believe too that the variables do not carry over from postback to postback... so any VB variables must be set with every execution... Can somebody clarify for me?
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What is the order of a postback?
- Thread starter qwert231
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Great article on exactly that subject:
Good question, by the way. A developer can get by without this knowledge, but they'll never be able to consistently avoid common pitfalls without a strong grasp of it.
paul
The answer to getting answered -- faq855-2992
Good question, by the way. A developer can get by without this knowledge, but they'll never be able to consistently avoid common pitfalls without a strong grasp of it.
paul
The answer to getting answered -- faq855-2992
- Thread starter
- #3
Okay... a little better, but still not sure what's happening with my page. I have a datagrid, that dynamically creates textboxes. I have a custom Validator that iterates thru the rows in the grid to make sure at least one of them has a value entered. (You can't place the order unless you enter at least one quantity.)
So I enter a quantity in one of the fields and press the button to send the order, but the response from the server has a clear dataGrid (the tbs are there, but not the value I entered) and my validator is up saying I didn't enter a value. Does validation run after viewstate is loaded? I think it does, cause this validator worked fine before.
(I changed the sequence of a few methods to accomidate some requested changes to the form, and don't know which one is causing this.) Bad Mark, no coffee!
So I enter a quantity in one of the fields and press the button to send the order, but the response from the server has a clear dataGrid (the tbs are there, but not the value I entered) and my validator is up saying I didn't enter a value. Does validation run after viewstate is loaded? I think it does, cause this validator worked fine before.
(I changed the sequence of a few methods to accomidate some requested changes to the form, and don't know which one is causing this.) Bad Mark, no coffee!
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