LinkButton and global variables


I try to assign a value to a global variable by using the click event of a LinkButton
shown below
The PostBackURL is "~/Daily.aspx"
and I am trying to check that the value assigned to the variable on the click event
comes through, but it doesn't

    Protected Sub LinkButtonL_Click(sender As Object, e As EventArgs) Handles LinkButtonL.Click
        LIFE_Category = "L"
    End Sub

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
            If Not IsPostBack Then

Murray BrownMicrosoft Cloud Azure/Excel Solution DeveloperAsked:
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This is a "Good" question.

The probelm is unlike winfrom webfrom global variables are not so global.

Every time from load event is fired all form level variables are reset to defalut values, in your case string is set to "".

To preserveyour form levle variable, just put in in a session variable:

 Protected Sub LinkButtonL_Click(sender As Object, e As EventArgs) Handles LinkButtonL.Click
        Session("LIFE_Category") = "L"
    End Sub

Open in new window

Then you can read it in page load:

If Not IsPostBack Then


Open in new window

Note: you could also put it in viewstate object:

 Viewstate("LIFE_Category") = "L"

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Murray BrownMicrosoft Cloud Azure/Excel Solution DeveloperAuthor Commented:
Great answer. Thanks very much
Your welcome! This was a very good question for E.E knowledgebase
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