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ASP.NET Tutorial/Page Lifecycle/Cross Page Posting - История изменений
2026-04-29T18:28:52Z
История изменений этой страницы в вики
MediaWiki 1.30.0
http://nfex.ru/index.php?title=ASP.NET_Tutorial/Page_Lifecycle/Cross_Page_Posting&diff=3210&oldid=prev
в 15:30, 26 мая 2010
2010-05-26T15:30:57Z
<p></p>
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<tr style="vertical-align: top;" lang="ru">
<td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 15:30, 26 мая 2010</td>
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http://nfex.ru/index.php?title=ASP.NET_Tutorial/Page_Lifecycle/Cross_Page_Posting&diff=3211&oldid=prev
Admin: 1 версия
2010-05-26T12:00:02Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Cross-page post (VB.net)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"> <br />
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)<br />
Label1.Text = "Hello " & TextBox1.Text & "<br />" & "Date Selected: " & Calendar1.SelectedDate.ToShortDateString()<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>First Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
Enter your name:<br /><br />
<asp:Textbox ID="TextBox1" Runat="server"/><br />
When do you want to fly?<br /><br />
<asp:Calendar ID="Calendar1" Runat="server"/><br />
<br /><br />
<asp:Button ID="Button1" Runat="server" Text="Submit page to itself" <br />
OnClick="Button1_Click" /><br />
<asp:Button ID="Button2" Runat="server" Text="Submit page to NextPage.aspx"<br />
PostBackUrl="NextPage.aspx" /><br />
<asp:Label ID="Label1" Runat="server"/><br />
</form><br />
</body><br />
</html><br />
<br />
File: NextPage.aspx<br />
<%@ Page Language="VB" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"> <br />
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)<br />
Dim myTextbox1 As TextBox<br />
Dim myCalendar1 As Calendar<br />
<br />
myTextbox1 = CType(PreviousPage.FindControl("Textbox1"), TextBox)<br />
myCalendar1 = CType(PreviousPage.FindControl("Calendar1"), Calendar)<br />
<br />
Label1.Text = "Hello " & myTextbox1.Text & "<br />" & _<br />
"Date Selected: " & myCalendar1.SelectedDate.ToShortDateString()<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Second Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<asp:Label ID="Label1" Runat="server"></asp:Label><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Exposing the values of the control from a Property==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
index.aspx<br />
<br />
<%@ Page Language="C#" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
public TextBox pp_TextBox1<br />
{<br />
get<br />
{<br />
return TextBox1;<br />
}<br />
}<br />
public Calendar myCalendar1<br />
{<br />
get<br />
{<br />
return Calendar1;<br />
}<br />
}<br />
protected void Button1_Click (object sender, System.EventArgs e)<br />
{<br />
Label1.Text = "Hello " + TextBox1.Text + "<br />" +<br />
"Date Selected: " + Calendar1.SelectedDate.ToShortDateString();<br />
}<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>First Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
Enter your name:<br /><br />
<asp:Textbox ID="TextBox1" Runat="server"><br />
</asp:Textbox><br />
When do you want to fly?<br /><br />
<asp:Calendar ID="Calendar1" Runat="server"></asp:Calendar><br />
<br /><br />
<asp:Button ID="Button1" Runat="server" Text="Submit page to itself" <br />
OnClick="Button1_Click" /><br />
<asp:Button ID="Button2" Runat="server" Text="Submit page to NextPage.aspx"<br />
PostBackUrl="NextPage.aspx" /><br />
<asp:Label ID="Label1" Runat="server"></asp:Label><br />
</form><br />
</body><br />
</html><br />
File: NextPage.aspx<br />
<br />
<%@ Page Language="C#" %><br />
<%@ PreviousPageType VirtualPath="Default.aspx" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" <br />
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"><br />
<script runat="server"> <br />
protected void Page_Load(object sender, System.EventArgs e)<br />
{<br />
if (Page.IsCrossPagePostBack) {<br />
Label1.Text = "Hello " + PreviousPage.myTextbox1.Text + "<br />" + <br />
"Date Selected: " + <br />
PreviousPage.myCalendar1.SelectedDate.ToShortDateString();<br />
}<br />
else<br />
{<br />
Response.Redirect("Default.aspx");<br />
}<br />
} <br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Second Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<asp:Label ID="Label1" Runat="server"></asp:Label><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== New Cross-Page Posting==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="C#" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"> <br />
protected void Button1_Click (object sender, System.EventArgs e)<br />
{<br />
Label1.Text = "Hello " + TextBox1.Text + "<br />" +<br />
"Date Selected: " + Calendar1.SelectedDate.ToShortDateString();<br />
}<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>First Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
Enter your name:<br /><br />
<asp:Textbox ID="TextBox1" Runat="server"/><br />
When do you want to fly?<br /><br />
<asp:Calendar ID="Calendar1" Runat="server"></asp:Calendar><br />
<br /><br />
<asp:Button ID="Button1" <br />
Runat="server" <br />
Text="Submit page to itself" <br />
OnClick="Button1_Click" /><br />
<asp:Button ID="Button2" <br />
Runat="server" <br />
Text="Submit page to NextPage.aspx"<br />
PostBackUrl="NextPage.aspx" /><br />
<asp:Label ID="Label1" Runat="server"></asp:Label><br />
</form><br />
</body><br />
</html><br />
File: NextPage.aspx<br />
<%@ Page Language="C#" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"> <br />
protected void Page_Load(object sender, System.EventArgs e)<br />
{<br />
TextBox myTextbox1;<br />
Calendar myCalendar1;<br />
<br />
myTextbox1 = (TextBox)PreviousPage.FindControl("Textbox1");<br />
myCalendar1 = (Calendar)PreviousPage.FindControl("Calendar1");<br />
<br />
Label1.Text = "Hello " + myTextbox1.Text + "<br />" + "Date Selected: " + myCalendar1.SelectedDate.ToShortDateString();<br />
} <br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Second Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<asp:Label ID="Label1" Runat="server"></asp:Label><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Page.IsCrossPagePostBack==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
index.aspx<br />
<br />
<%@ Page Language="C#" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
public TextBox pp_TextBox1<br />
{<br />
get<br />
{<br />
return TextBox1;<br />
}<br />
}<br />
public Calendar myCalendar1<br />
{<br />
get<br />
{<br />
return Calendar1;<br />
}<br />
}<br />
protected void Button1_Click (object sender, System.EventArgs e)<br />
{<br />
Label1.Text = "Hello " + TextBox1.Text + "<br />" +<br />
"Date Selected: " + Calendar1.SelectedDate.ToShortDateString();<br />
}<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>First Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
Enter your name:<br /><br />
<asp:Textbox ID="TextBox1" Runat="server"><br />
</asp:Textbox><br />
When do you want to fly?<br /><br />
<asp:Calendar ID="Calendar1" Runat="server"></asp:Calendar><br />
<br /><br />
<asp:Button ID="Button1" Runat="server" Text="Submit page to itself" <br />
OnClick="Button1_Click" /><br />
<asp:Button ID="Button2" Runat="server" Text="Submit page to NextPage.aspx"<br />
PostBackUrl="NextPage.aspx" /><br />
<asp:Label ID="Label1" Runat="server"></asp:Label><br />
</form><br />
</body><br />
</html><br />
File: NextPage.aspx<br />
<br />
<%@ Page Language="C#" %><br />
<%@ PreviousPageType VirtualPath="Default.aspx" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" <br />
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"><br />
<script runat="server"> <br />
protected void Page_Load(object sender, System.EventArgs e)<br />
{<br />
if (Page.IsCrossPagePostBack) {<br />
Label1.Text = "Hello " + PreviousPage.myTextbox1.Text + "<br />" + <br />
"Date Selected: " + <br />
PreviousPage.myCalendar1.SelectedDate.ToShortDateString();<br />
}<br />
else<br />
{<br />
Response.Redirect("Default.aspx");<br />
}<br />
} <br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Second Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<asp:Label ID="Label1" Runat="server"></asp:Label><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Page level property (VB.net)==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
Public ReadOnly Property pp_TextBox1() As TextBox<br />
Get<br />
Return TextBox1<br />
End Get<br />
End Property<br />
<br />
Public ReadOnly Property myCalendar1() As Calendar<br />
Get<br />
Return Calendar1<br />
End Get<br />
End Property<br />
<br />
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)<br />
Label1.Text = "Hello " & TextBox1.Text & "<br />" & _<br />
"Date Selected: " & Calendar1.SelectedDate.ToShortDateString()<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>First Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
Enter your name:<br /><br />
<asp:Textbox ID="TextBox1" Runat="server"><br />
</asp:Textbox><br />
When do you want to fly?<br /><br />
<asp:Calendar ID="Calendar1" Runat="server"/><br />
<br /><br />
<asp:Button ID="Button1" Runat="server" Text="Submit page to itself" <br />
OnClick="Button1_Click" /><br />
<asp:Button ID="Button2" Runat="server" Text="Submit page to NextPage.aspx"<br />
PostBackUrl="NextPage.aspx" /><br />
<asp:Label ID="Label1" Runat="server"/><br />
</form><br />
</body><br />
</html><br />
File: NextPage.aspx<br />
<%@ Page Language="VB" %><br />
<%@ PreviousPageType VirtualPath="Default.aspx" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" <br />
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"><br />
<script runat="server"> <br />
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)<br />
Label1.Text = "Hello " & PreviousPage.myTextbox1.Text & "<br />" & _<br />
"Date Selected: " & _<br />
PreviousPage.myCalendar1.SelectedDate.ToShortDateString()<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Second Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<asp:Label ID="Label1" Runat="server"></asp:Label><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== PreviousPageType directive==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="VB" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br />
<script runat="server"><br />
Public ReadOnly Property pp_TextBox1() As TextBox<br />
Get<br />
Return TextBox1<br />
End Get<br />
End Property<br />
<br />
Public ReadOnly Property myCalendar1() As Calendar<br />
Get<br />
Return Calendar1<br />
End Get<br />
End Property<br />
<br />
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)<br />
Label1.Text = "Hello " & TextBox1.Text & "<br />" & _<br />
"Date Selected: " & Calendar1.SelectedDate.ToShortDateString()<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>First Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
Enter your name:<br /><br />
<asp:Textbox ID="TextBox1" Runat="server"/><br />
<br />
When do you want to fly?<br /><br />
<asp:Calendar ID="Calendar1" Runat="server"/><br />
<br /><br />
<asp:Button ID="Button1" Runat="server" Text="Submit page to itself" <br />
OnClick="Button1_Click" /><br />
<asp:Button ID="Button2" Runat="server" Text="Submit page to NextPage.aspx"<br />
PostBackUrl="NextPage.aspx" /><br />
<asp:Label ID="Label1" Runat="server"/><br />
</form><br />
</body><br />
</html><br />
File: NextPage.aspx<br />
<%@ Page Language="VB" %><br />
<%@ PreviousPageType VirtualPath="Default.aspx" %><br />
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" <br />
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"><br />
<script runat="server"> <br />
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)<br />
If Page.IsCrossPagePostBack Then<br />
Label1.Text = "Hello " & PreviousPage.myTextbox1.Text & "<br />" & _<br />
"Date Selected: " & _<br />
PreviousPage.myCalendar1.SelectedDate.ToShortDateString()<br />
Else<br />
Response.Redirect("Default.aspx")<br />
End If<br />
End Sub<br />
</script><br />
<html xmlns="http://www.w3.org/1999/xhtml" ><br />
<head id="Head1" runat="server"><br />
<title>Second Page</title><br />
</head><br />
<body><br />
<form id="form1" runat="server"><br />
<asp:Label ID="Label1" Runat="server"/><br />
</form><br />
</body><br />
</html></source></div>
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