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I have to add CausesValidation = "False" for each ASP button to work, why?

Hi, I have a Large ASP Page, and I have to set this in each ASP button:

CausesValidation="False"

work. If it cannot run the codebehind function.

Can someone explain to me why this is so?

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You seem to be using Validation controls on your page. Your page must pass validation before being sent to the server. The following is the functionality of the CausesValidation property:

  • The CausesValidation property indicates whether the page is checked when the button is clicked.

  • Page verification is performed when the default button is clicked.

  • This property is mainly used to prevent validation when a cancel or reset button is pressed.

Source: http://www.w3schools.com/aspnet/prop_webcontrol_button_causesvalidation.asp

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