Edit records in MVC
Example to edit the record in MVC :-
EmpDisplay.aspx
Create a new view . with name (EMP display aspx)
Go to Source write the following code
<% @ import name space = “example modes” @%>
<body>
<h2> technologies </h2>
<div>
<% HTML . Begin Forms %>
<table Border = “2” align = “center”>
<tr>
<th> Edit </th> <th>emp id </th><th>ename</th> <th>esal </th>
<% HTML . End Form (); %>
<% foreach (var x in () enumerable <Emp details> model) %>
<tr>
<td> <% HTML. Encode (x. emp id) %></td>
<td> <% HTML. Encode (x. ename) %></td>
<td> <% HTML. Encode (x.sal) %></td>
</tr>
<% } %>
</table>
</div>
</body>
Go to Home Controller. cs
Write the following code for Action Method
Public .Action Result EMP Display (){
Employee Entities . obj 1 = new Employee ();
Return view (obj 1. EMP Details . To list ());
}
Go to Global .asax change action method to EMP display1.
- Great a new Strongly typed view with the name edit.aspx
- Go to source write the following code for design
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<body>
<h2> technologies </h2>
<div>
<% html . Begin form (); %>
<table align = “center ” Border = “2”>
<tr>
<td> <label for = “emp id”> enter emp id </label>; </td>
<td><% html.text box (“EMP id”) %> </td>
</tr>
<tr>
<td> <label for = “e name”> enter ename </label>; </td>
<td><% html.text box (“E name”) %> </td>
</tr>
<tr>
<td> <label for = “e sal”> enter e sal </label>; </td>
<td><% html.text box (“E salary”) %> </td>
</tr>
<tr>
<td> <% html.Action link (Back to list , ‘Employee;’) %>
</td>
<td> <input = ‘submit’. Value = ‘save’>
</td>
</tr>
</table>
<% html end form (); %>
</div>
</body>
- Go to home controller. Cs
- Write the following code to edit action method which will get the particular EMP id record . that is transferred from EMP Display , view page, will display the data in text box.
Public . Action Result Edit (int id){
Employee entities obj 1 = new employee entities ();
Var R = (from x in obj. EMP details where x. EMP id == ID Select x). first ();
Return view (R);
}
Write the following Action method which will update the modified data update in to data base.
[Accept verbs (HTTP verbs.post)]
Public action result . edit ([bind] emp details obj edit){
Employee entitier. Obj 1 = new employee entitites ();
Var R = (from x in obj1 = emp details. Where x. emp id = obj edit.emp id select x ).first ();
Obj1. Apply current values (r.entity key . entity set name, obj edit);
Obj1.save changes ();
Return. Redirect to action (“Emp display”);
}
}
}
Example to call the action result from multiple button controls :
Create a new mvc 2 web application (Example 5)
↓
Create a new view page (action .aspx)
↓
Go to source write the following code
<h2> sathya technologies </h2>
<% HTML Begin form %>
<table align = “center” border = “2”>
<tr>
<td> enter first number </td>
<td><% HTML .text box (“T1”) %></td>
</tr>
<td><input type = ‘submit’ name = ‘submit’ value = ‘Add’/>
</td>
<td> <input type = ‘submit’ name = ‘submit value = ‘submit’/’>
</td>
</tr>
<tr>
<td> <input type = ‘submit’ name = ‘submit value = ‘multiply/’> </td>
</tr>
<tr>
<td> <input type = ‘submit’ name = ‘submit value = ‘divide’/’> </td>
</tr>
</table>
<% HTML End form () ; %>
Go to Home Controller .cs à write the following code for action method.
Public Action result Arithmetic ()
{
Return view ();
}
Go to global .asax àchange the action name to arithmetic àrun the application and check
Go to Home controller write the Arithmetic mode
Following code for 4 buttons in comman.
[Accept verbs (HTTP verd.post)]
Public Action result Arithmetic (string submit. String t1, string t2)
{
Int a, b, c =0;
A = convert.to.int 32 (“T1”);
B = convert.to.int 32 (“T2”);
If (submit == “Add”)
C = a +b;
Else if (submit == “submit”)
C = a-b;
Else if (submit == 1 multiply)
C = a*b;
Else if (submit == Divide)
C = a/b;
View data [‘R’] = c;
Return view ();
}
}
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