Button Click Causes PostBack = True

[TheWizardofInt]

I use the postback method to force users to access through the login page. such that if postback = true, then you go to the login page

 

Clicking any of the button forms sends the asp code to the page_load event, and the postback = true, so it wants to force the whole thing to reload from log in

 

What am I doing wrong? Or is there a way to detect that I have clicked the button and then not go to the log in?

 

Thanks!

[Bucky]

I'm not sure I understand what you mean... The whole point of

PostBack being true is so that you know the user pressed a

button on the form and you can act accordingly. Maybe you should

be checking if PostBack is False, instead?

[Derek Stone]

Give each of the buttons handlers in their onclick events.

[TheWizardofInt]

I verified the handling, that wasn't it.

 

Correct me if I am wrong on the other issue:

 

If you haven't passed the start page, PastBack is True. Otherwise, it is false.

 

Is there a way to detect if a button has been clicked?

[justin]

You have to write an onclick event handler for every button you have. In design mode, just right click on the buton and choose properties, events, onclick. Be sure your button is an web control.

[TheWizardofInt]

I did this

 

It didn't work

[justin]

Please send me a code sample.

[TheWizardofInt]

If you click the btnCancel, then it tries to reload the page, gets a post back and goes to the login page. If you manually push it to the end of the end if, it will go through the btnCancel subroutine

 

   Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
       If Not Page.IsPostBack Then
       'I have my code here
       Else
           Dim url As String
           url = "LogIn.aspx"
               Response.Redirect(url)
       End If
   End Sub

    Private Sub btnCancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCancel.Click
       'go back with the id you came in with
       Dim url As String
       url = "Main.aspx?id=" & Request("ID")
       Response.Redirect(url)

   End Sub

[justin]

Try with this:

 

<asp:button id=Cancel runat="server" Text="Cancel" ></asp:button>

 

___________________________________________________

 

/* Sorry, but I am not familiar with VB */

 

if (IsPostBack)

{

&nbsp&nbspbool clicked = false;

&nbsp&nbspstring BtnValue = Request.QueryString["Cancel"];

&nbsp&nbspif (BtnValue != null)

&nbsp&nbsp{

&nbsp&nbsp&nbsp&nbspif (BtnValue == "Cancel")

&nbsp&nbsp&nbsp&nbsp&nbsp&nbspclicked = true;

&nbsp&nbsp}

 

&nbsp&nbspif (clicked == false) /* not clicked */

&nbsp&nbsp&nbsp&nbspResponse.Redirect("Login.aspx");

}

 

___________________________________________________

[TheWizardofInt]

I couldn't identify the clicked event in VB but I was able to pass a variable to the next page that gets me through this

 

Thanks