Question

Well I have a web page asp.net(page1.aspx) amm user can choose two options A/B
if user chooses a when he is in page2.aspx i want a javascript was execute

function(receive parameter)
{
}

But if he chose option B function never will be executed.

I want to do, if user chooses A will see a asp button, but if he choose option b he
is not going to be the button

Answer 1

You could use a querystring parameter…

Page1

protected void Button1_Click(object sender, EventArgs e){
    Response.Redirect("~/page2.aspx?showButton=true", true);
}

protected void Button2_Click(object sender, EventArgs e){
    Response.Redirect("~/page2.aspx?showButton=false", true);
}

Page2

protected void Page_Load(object sender, EventArgs e){
    someButton.Visible = (Request[@"showButton"] == @"true");
}

The example isn’t that elegant, but should get you started on what you want.