1.Use Query String
注：以前总是忽略了Server.UrlEncode() AND Server.UrlDecode() 切记，切记！
(1)Source Page
1 protected void QueryStringButton_Click(object sender, EventArgs e)
2 {
3 Response.Redirect("QueryStringPage.aspx?Data=" + Server.UrlEncode(DataToSendTextBox.Text));
4 }
(2)Target Page
1 <form id="form1" runat="server">
2 <div>
3 <h1>Target Page - Query String</h1>
4 The data received from the source page is: <%=Server.UrlDecode(Request.QueryString["Data"]) %><br /><br />
5 </div>
7 </form>
2.Use Session
(1)Source Page
1 protected void SessionStateButton_Click(object sender, EventArgs e)
2 {
3 Session["Data"] = DataToSendTextBox.Text;
4 Response.Redirect("SessionStatePage.aspx");
5 }
(2)Target page
<div>
<h1>Target Page - Session State</h1>
The data received from the source page is: <%=Session["Data"] %><br /><br />
</div>
</form>
3.Use HttpPost
说明：印象中这是第一次见到这种用法，这次该记住了。
(1)Source Page
<asp:Button ID="HttpPostButton" runat="server" Text="Use HttpPost"
PostBackUrl="~/HttpPostPage.aspx"/><br /><br />
(2)Target page
<h1>Target Page - HttpPost</h1>
The data received from the source page is: <%=Request.Form["DataToSendTextBox"] %><br /><br />
<fieldset>
<legend>All form data from the sending page</legend>
<asp:Label ID="ReceivedDataLabel" runat="server" Text="Label"></asp:Label>
</fieldset>
<br />
protected void Page_Load(object sender, EventArgs e)
{
System.Text.StringBuilder displayValues =
new System.Text.StringBuilder();
System.Collections.Specialized.NameValueCollection
postedValues = Request.Form;
String nextKey;
for (int i = 0; i < postedValues.AllKeys.Length; i++)
{
nextKey = postedValues.AllKeys[i];
if (nextKey.Substring(0, 2) != "__")
{
displayValues.Append("<br>");
displayValues.Append(nextKey);
displayValues.Append(" = ");
displayValues.Append(postedValues[i]);
}
}
ReceivedDataLabel.Text = displayValues.ToString();
}
4.Use Public Properties
(1)Source Page
说明：这个方法也是很少用，不过在某些时候还是用得到的。
public string DataToSend
{
get
{
return DataToSendTextBox.Text;
}
}
protected void PublicPropertiesButton_Click(object sender, EventArgs e)
{
Server.Transfer("PublicPropertiesPage.aspx");
}
(2)target page
<div>
<h1>Target Page - Public Properties</h1>
The data received from the source page is: <%=PreviousPage.DataToSend %><br /><br />
<asp:hyperlink ID="Hyperlink1" runat="server" NavigateUrl="~/Default.aspx">Return to Source Page</asp:hyperlink>
</div>
5.Use Control Infomation
(1)Source Page
说明：以前只有在应用母版页时才去FindControl(),长眼见了。
<asp:TextBox ID="DataToSendTextBox" runat="server" Text="Hello World!"></asp:TextBox><br /><br />
protected void ControlInfoButton_Click(object sender, EventArgs e)
{
Server.Transfer("ControlInfoPage.aspx");
}
(2)Target page
<h1>Target Page - Control Info</h1>
The data received from the source page is:
<asp:Label ID="DataReceivedLabel" runat="server" Text="Label"></asp:Label><br /><br />
protected void Page_Load(object sender, EventArgs e)
{
var textbox = PreviousPage.FindControl("DataToSendTextbox") as TextBox;
if (textbox != null)
{
DataReceivedLabel.Text = textbox.Text;
}
}
反思：似乎作者没有把Cookies放到这一类来，why？