Respond
The procedure is as follows:
1. Create a general Handler
2. process the request (if it is the first time, it will be output directly, if it is a return request, it will receive the value and then output after processing)
3. Read the template page (skip this step if the template page is not used)
4. Replace Value
5. Response Request
1 using system; 2 using system. collections. generic; 3 using system. LINQ; 4 using system. web; 5 using system. text; 6 7 namespace _ 03div width and height plus 10px 8 {9 /// <summary> 10 /// divaddwdithandheigth abstract description 11 /// </Summary> 12 public class divaddwdithandheigth: ihttphandler13 {14 15 public void processrequest (httpcontext context) 16 {17 context. response. contenttype = "text/html"; 18 int Len = 0; 19 if (context. R Equest ["divlen"]! = NULL) 20 {21 Len = int. parse (context. request ["divlen"]) + 10; 22} 23 24 stringbuilder sb = new stringbuilder (); 25 sb. appendline ("<form method = 'get'>"); 26 Sb. appendline ("<Div style = 'width: @ lenpx; Height: @ lenpx; Border: 1px solid red; '>"); 27 sb. appendline ("</div>"); 28 sb. appendline ("<input type = 'ddd' name = 'didlen' value = '@ len'>"); 29 sb. appendline ("<input type = 'submit 'value = 'width and height plus 10px'>"); 30 sb. appendline ("</form>"); 31 string html = sb. tostring (); 32 html = html. replace ("@ len", Len. tostring (); 33 context. response. write (HTML); 34} 35 36 Public bool isreusable37 {38 get39 {40 return false; 41} 42} 43} 44}
The preceding steps are completed in a general processing program. The template page is used below.
Create template page
1 <! Doctype HTML> 2 <HTML xmlns = "http://www.w3.org/1999/xhtml"> 3In the browser, as shown below:
Create a general Handler
1 using system; 2 using system. collections. generic; 3 using system. LINQ; 4 using system. web; 5 using system. io; 6 using system. text; 7 8 namespace _ 01 Add 1 9 {10 /// <summary> 11 /// divaddwdithandheig2's abstract description 12 /// </Summary> 13 public class divaddwdithandheig22: ihttphandler14 {15 16 public void processrequest (httpcontext context) 17 {18 context. response. contenttype = "text/html"; 19 int Len = 0; 20 if (context. request ["divlen"]! = NULL) 21 {22 Len = int. parse (context. request ["divlen"]) + 10; 23} 24 string html = file. readalltext25 (26 path. combine27 (28 appdomain. currentdomain. basedirectory29, 30 "divaddwdithandheigth.html" 31) 32); 33 html = html. replace ("@ len", Len. tostring (); 34 context. response. write (HTML); 35} 36 37 public bool isreusable38 {39 get40 {41 return false; 42} 43} 44} 45}After the request is processed
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