Describes some common features of a view.
1: PASS Parameters:
1): parameters transmitted in the routing protocol:
1): eg: for example, if it is such a similar routing protocol, we need to pass the ID when passing the parameter. Of course, if it is ABCD = urlparameter. optional, so we also need to pass ABCD when passing Parameters
If you do not practice it, it is a false trick:
Global. asax:
View code
1 Routes. maproute (
2 " Default " , // Route name
3 " {Controller}/Alibaba action=.html " , // URL with Parameters
4 New {Controller = " Home " , Action = " Index " , Id = urlparameter. optional} // Default Value
5 );
View: Index. aspx
Controller:
1 /// <Summary>
2 /// Eg: ABCD = "ABCDE ...";
3 /// </Summary>
4 /// <Param name = "ABCD"> The passed parameter name is used to obtain the value. </Param>
5 /// <Returns> </returns>
6 Public Actionresult about ( String ABCD)
7 {
8 Return View ();
9 }
2): Pass the model value
Controller: Index
1 Using System;
2 Using System. Collections. Generic;
3 Using System. LINQ;
4 Using System. Web;
5 Using System. Web. MVC;
6
7 Namespace Mvctest. Controllers
8 {
9 [Handleerror]
10 Public Class Homecontroller: Controller
11 {
12
13 Public Actionresult index ()
14 {
15 Viewdata [ " Message " ] = " Welcome to ASP. net mvc! " ;
16 Return View ();
17 }
18
19 /// <Summary>
20 /// Of course, values of the strong type can also be passed as follows:
21 /// Public actionresult index (string userid, string username, string PWD)
22 /// </Summary>
23 /// <Returns> </returns>
24 [Httppost]
25 Public Actionresult index (username user)
26 {
27 Viewdata [ " Message " ] = " Welcome to ASP. net mvc! " ;
28 Return View ();
29 }
30 }
31 Public Class Username
32 {
33 Public String Userid { Get ; Set ;}
34 Public String Username { Get ; Set ;}
35 Public String PWD { Get ; Set ;}
36 }
37 }
View: Index. aspx
1 <% @ Page Language = " C # " Masterpagefile = " ~ /Views/shared/site. Master " Inherits = " System. Web. MVC. viewpage <mvctest. controllers. Username> " %>
2
3 <Asp: Content ID = " Content1 " Contentplaceholderid = " Titlecontent " Runat = " Server " >
4 Home Page
5 </ASP: content>
6 <Asp: Content ID = " Content2 " Contentplaceholderid = " Maincontent " Runat = " Server " >
7 <H2>
8 Strong type test </H2>
9 <% Html. beginform (); %>
10 <P>
11 User ID: <% = html. textboxfor (P => P. userid) %>
12 </P>
13 <P>
14 User name: <% = html. textboxfor (P => P. username) %>
15 </P>
16 <P>
17 User Password: <% = html. textboxfor (P => P. pwd) %>
18 </P>
19 <Input type = " Submit " Value = " Submit " />
20 <% -- After you click Submit, index (username user) will receive the passed parameter -- %>
21 <% Html. endform (); %>
22 </ASP: content>
3) viewdata and tempdata values. The validity period of tempdata disappears from one actionresult to another.
