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asp.netwebformshiddenfield

How might I clear a hiddenfield value when the page is refresh in ASP.NET?

How can I clear the value of an asp:HiddenField control when the user hits the refresh button in the browser?

Solution

  • In the load event (Page_Load, OnLoad) set hiddenVariableControl.Value = String.Empty.

    If you are capturing this hidden variable's value for another event, you could do the following in the load event:

    if( !Page.IsPostBack ) 
{
  hiddenVariableControl.Value = String.Empty;
}

    This sets the value of the hidden variable to a blank string on refreshes, but postbacks (like a button event) would keep the value.