Skip to main content

Create RadioButton list and Access Checked Value in Asp.Net MVC

List of Radio buttons are placed on the view when programmer need to checked only one value among a group by the user. Asp.Net MVC provides some simple steps to complete this task with few lines of code.

First, create an action in the controller and write a single line which will return that on the view. This type of view is called HttpGet method which only used to get the values on the page, in this case we don’t want any value from this action so we are returning only null view.

public ActionResult RadioList()
return View();

Add a view having the same name as in above action which have four radio buttons of same name and values defined sequentially, as written in below code:

@using (Html.BeginForm())
            <li>@Html.RadioButton("radioList", 1) RadioButton 1 </li>
            <li>@Html.RadioButton("radioList", 2) RadioButton 2 </li>
            <li>@Html.RadioButton("radioList", 3) RadioButton 3 </li>
            <li>@Html.RadioButton("radioList", 4) RadioButton 4 </li>

        <input type="submit" value="Submit" id="submitBtn" />

All of these radio buttons have the same name “radioList” that may be changed. The last line of above code have a submit button which will submit the values of this page to the action written on the same controller and of course same name. This type of method is called HttpPost, written below:

public ActionResult RadioList(FormCollection collection)
ValueProviderResult result = collection.GetValue("radioList");
string checkedValue = result.AttemptedValue;
return View();

The parameter “collection” will have all the values input by the user on the view, now we have to access the checked value of the radiobutton list defined on the view. The class System.Web.Mvc.ValueProviderResult used to represents the result of binding a value (such as from a form post or query string) to an action-method argument property, or to the argument itself.

Create RadioButton list and Access Checked Value in Asp.Net MVC

After getting the value from the collection the checked value is stored in AttemptedValue property of this class’s object. So we have simply accessed the checked value from the view.


Popular posts from this blog

difference between structure and union in C Language

In c language article we will see the difference between union and structure. Both are the user define datatype in c language. See the table which is mentioned below: ASP.NET Video Tutorial Series Structure Union1.The keywordstruct is used to define a structure 1. The keyword union is used to define a union. 2. When a variable is associated with a structure, the compiler allocates the memory for each member. The size of structure is greater than or equal to the sum ofsizes of its members. The smaller members may end with unused slack bytes. 2. When a variable is associated with a union, thecompiler allocates thememory by considering the size of the largest memory. So, size of union is equal to the size of largest member. 3. Each member within a structure is assigned unique storage area of location. 3. Memory allocated is shared by individual members of union. 4. The address of each member will be in ascending order This indicates that memory for each member will start at different offset v…

Difference between Linear search and Binary Search in c language

SQL Video Channel : Download all SQL Video

Binary Search Linear Search Works only on sorted items. such as  1,2,3,4,5,6  etc
Works on sorted as well as unsorted items. 12,4,5,3,2,1 etc Very efficient if the items are sorted Very efficient if the items are less and present in the beginning of the list. such as Suppose your list items are : 12,3,4,5,1 and you want to search 12 number then you get beginning in the list. Works well with arrays and not on linked lists. Works with arrays and linked lists.
Number of comparisons are less More number of comparisons are required if the items are present in the later part of the array or its elements are more.

Memory representation of Linked List Data Structures in C Language

Memory representation of Linked List

             In memory the linked list is stored in scattered cells (locations).The memory for each node is allocated dynamically means as and when required. So the Linked List can increase as per the user wish and the size is not fixed, it can vary.

               Suppose first node of linked list is allocated with an address 1008. Its graphical representation looks like the figure shown below:

      Suppose next node is allocated at an address 506, so the list becomes,

  Suppose next node is allocated with an address with an address 10,s the list become,

The other way to represent the linked list is as shown below:

 In the above representation the data stored in the linked list is “INDIA”, the information part of each node contains one character. The external pointer root points to first node’s address 1005. The link part of the node containing information I contains 1007, the address of next node. The last node …