c# - Website doesn't see newest session values until I refresh page, but refreshing resets values of controls -

c# - Website doesn't see newest session values until I refresh page, but refreshing resets values of controls -

my asp.net website doesn't see newest session values. when form beingness sent server after clicking button, result sent browser depends of session values. process them in page_load method. doesn't see lastly alter od session values, 1 before last. looks button's event handlers executed before page's event handles i'm not sure if that. tried code in other methods page_preinit etc, it's still same that. thing works me refreshing page: response.redirect(request.url.absoluteuri); after alter of session value, resets values of controls, want same before. there improve solution?

example: when runs first time, label's text "click button", when click of buttons 1 time, nil happens. when click of button sec time, label's text value of first click (even if click , b, value changes after clicking b).

form:

<form id="form1" runat="server"> <div> <p> <asp:label id="label1" runat="server" /> </p> <p> <asp:button id="button1" runat="server" text="a" onclick="button1_click" />&nbsp; <asp:button id="button2" runat="server" text="b" onclick="button2_click" /> </p> <p> <asp:textbox id="textbox1" runat="server"></asp:textbox> </p> </div> </form>

event handlers:

protected void page_load(object sender, eventargs e) { label1.text = session["letter"].tostring(); } protected void button1_click(object sender, eventargs e) { session["letter"] = "a"; } protected void button2_click(object sender, eventargs e) { session["letter"] = "b"; }

global method:

void session_start(object sender, eventargs e) { session["letter"] = "click button"; }

without code difficult, sounds setting session collection value in code of button's click event( or other control/event ), , expecting in session collection during page_load event.

it doesn't work - when page request comes in, page_load happens before control's events.

instead of page_load utilize page_prerender event occurs before page prepared sent client.

your add-on of code confirms above.

normally wouldn't utilize session_start initialize stuff this, utilize page_load , ispostback property

protected void page_load(object sender, eventargs e) { if(!ispostback){ label1.text = "click button"; } }

c# asp.net .net session