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Modify the value of a global variable in the page

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Post time: 2020-3-7 14:30:02
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Define a global variable int a = 7;
Using Response.Write (a) in the From_Load event, it prints 7
Change its value in the Button_Click event, set a = 8, how to make the page display the new value after the Button_Click event?
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Post time: 2020-5-24 23:45:01
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Add the following to Button_Click:
{
a = 8;

From_Load (null, null);
}
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Post time: 2020-5-25 10:00:02
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How to make the page display the new value after the Button_Click event?
Then display or assign in this event
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Post time: 2020-5-25 13:00:02
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Post time: 2020-5-25 13:15:01
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Define a like this;

int a
{
 get
 {
    return ViewState ["i"] == null? 0: (int) ViewState ["i"];
 }
set
{
 ViewState ["i"] = value;
}
}
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 Author| Post time: 2020-5-28 10:30:01
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burtmao, try it yourself first and then make a conclusion
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