в 15:30, 26 мая 2010

2010-05-26T15:30:57Z

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2010-05-26T11:59:58Z

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== Page.IsPostBack (C#)==



<source lang="csharp">
<%@ Page Language="C#" %>
<script runat="server">
void Page_Load(Object Sender, EventArgs e) {
if (!Page.IsPostBack) {
lblMessage.Text = "Hello world!!!!";
}
}

void Submit(Object Sender, EventArgs e) {
lblMessage2.Text = "Form posted";
}
</script>
<html><body>
<form runat="server">
<asp:Button id="btSubmit" runat="server" Text="Submit" onClick="Submit" />

<asp:Label id="lblMessage" runat=server />

<asp:Label id="lblMessage2" runat=server />
</form>
</body></html></source>

== Save value to view state (VB.net)==



<source lang="csharp">
<%@ Page Language="VB" %>
<script runat="server">
Sub Page_Load(Sender as Object, e as EventArgs)
if not Page.IsPostBack then
ViewState("StartTime") = DateTime.Now
lblMessage.Text = "The time is now: " & _
ViewState("StartTime")
end if
end sub

Sub Submit(obj as object, e as EventArgs)
lblMessage.Text = "The time is now: " & DateTime.Now & _
"<br>started at: " & ViewState("StartTime")

end Sub
</script>
<html><body>
<form runat="server">
<asp:Button id="btSubmit" runat="server" Text="Submit"
onClick="Submit" />

<asp:Label id="lblMessage" runat=server />
</form>
</body></html></source>

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ASP.NET Tutorial/Page Lifecycle/Post Back - История изменений

в 15:30, 26 мая 2010

Admin: 1 версия