In C #, in the content page, get the variables in its template page, or the value

In CSDN's blog post saw the Muziduoxi article: http://blog.csdn.net/muziduoxi/article/details/5386543 Although the method mentioned inside did not solve my problem, But I also think of the method according to the methods used in the present, so I still need to thank because I want to initialize the variable is empty, if the use of Muziduoxi method can only read the value of the initialization time, I did a trace, When a page that has a template page is run, it is the definition of the variable that runs this page → the variable definition of the template page → The Page_Load method → to the pageload method of the template page, so if the template page variable I want to get is initialized in its Page_Load, So in this page Page_Load is not read, if you want to get to the method is: on this page in ASPX in the use of: <%= (this. Master asagency_web_agency_master). Systemurl%> and as for why Agency_web_agency_master This I understand is that it put the dot. In fact, this name will be after you enter as And then a space to prompt you.
The specific code is as follows:
The template page has a common variable definition: public string systemurl = "";
It is then used directly in the ASPX code of the content page: <%= (this. Master as Agency_web_agency_master). Systemurl%> can be output normally.
And not only can you get the field, you can also get an object if the template page has a class: public model.gy_agencyinfo modagency = new Model.gy_agencyinfo (); Class has a field that is: Systemurl
Used directly in the ASPX code of the content page: <%= (this. Master as Agency_web_agency_master). Modagency.systemurl%> can be output normally.
In order to conveniently remember the method of Muziduoxi, specially paste it to me here, to facilitate their own view:
Get the variables and property values for the Master page: template page:

[CSharp]View Plaincopyprint?

2. Public partial class MasterPage:System.Web.UI.MasterPage
4. {
8. public int UserId {
10. get { return 342;}
12. }
16. public String UserName = "SHENJK";
18. protected void Page_Load (object sender, EventArgs e)
20. {
24. }
26. }

Public partial class masterpage:system.web.ui.masterpage{public    int UserId {        get {return 342;}    }    public string UserName = "SHENJK";    protected void Page_Load (object sender, EventArgs e)    {    }}

Get the value on the content page:

[CSharp]View Plaincopyprint?

2. protected void Page_Load (object sender, EventArgs e)
4. {
6. PropertyInfo PL = This . Master.gettype ().  GetProperty ("UserId");
8. object o = pl. GetValue (This. Master, null); //o=342
14. FieldInfo f = This . Master.gettype ().  GetField ("UserName");
16. Object O1 = F.getvalue (This.  Master); //O1=SHENJK
20. }

protected void Page_Load (object sender, EventArgs e)    {        PropertyInfo pl = this. Master.gettype (). GetProperty ("UserId");        Object o = pl. GetValue (this. Master, NULL); o=342                FieldInfo f = this. Master.gettype (). GetField ("UserName");        Object O1 = F.getvalue (this. Master);  O1=SHENJK           }

How to receive the value of a content page (the feeling should be a template page) control when referencing a template page

TextBox Myemail = (textbox) this. Page.Master.FindControl ("show").  FindControl ("email"); string email = myemail. Text;

This 2 lines of code let me find 2 days, I always think is:

TextBox Myemail = (textbox) this.  Page.findcontrol ("email"); string email = myemail. Text;

Always an error: Object references are not set to an instance of an object.

How to get the variables in the masterpage associated with the current page

For example: 1. a.aspx used a master page called Masterpage.master. MasterPage.master.cs defines an int variable flag = 1 How do I read the value of a flag variable in A.aspx.cs? Add the following code to the Page_Load event: ((MasterPage) Pa

For example: 1. a.aspx used a master page called Masterpage.master. MasterPage.master.cs defines an int variable flag = 1 How do I read the value of a flag variable in A.aspx.cs? Add the following code to the Page_Load event: ((MasterPage) page.master). flag = 2; or int c= ((MasterPage) page.master). Flag; can also (this. Master as MasterPage). Flag = 2 2. The following code example demonstrates how to use a content page to access the public properties SiteName on the master page in the previous code example.      <%@   page   language= "C #"    masterpagefile= "~/ Masterpage.master "   title=" masterpage   Example "  %>            <script   runat= "Server" >           protected   void   Page_Load (object   sender,   EventArgs    e)           {               masterexample   m   =   (masterexample) page.master;               MyLabel. text   =   m.sitename;         }      </script>           <asp:Content   id= "Content1"    contentplaceholderid= "ConteNtPlaceHolder1 "   runat=" Server ">               hello,   master   pages!               <asp:Label   runat= "Server"    text= "Label"    id= "MyLabel" > </asp:Label>      </asp:Content>   3. Get and set the value of a control in master page master ((Controls_wuctopbar) Master.findcontrol ("WucTopBar1")). Strnaviganame = "Movie Channel"; 4. This can be Zu In the content page add: <%@ MasterType virtualpath= "~/masterpage33.master"%> protected void Page_Load in background code (object Sen     Der, EventArgs e) {master.labeltext = "time Now:" + System.DateTime.Now.ToShortTimeString (); }

In C #, in the content page, get the variables in its template page, or the value