Pass checkbox values to Controller and show confirmation before deleting data in MVC C#


Hi, I want to pass multiple checkbox values for deleting data like

checkbox1: a,b,c,d  checkbox2: e,f,g,h

and pass it to the controller and want to show modal popup before sending Data to the controller:

Are you sure, you are going to delete 2 items? (Delete/No)

the modal pop-up will contain the only count of selected data and delete button for confirmation?

Delete button will delete all selected data

should I pass the data in JSON format or in the string?

Right now, I am passing the data like : var a = {values = CommaSeperatedValues}
In the controller Method passing argument as List<string> values and fetched values but I am getting an error like unexpected char at JSON


Asked by:- SnehalSawant
1
: 1131 At:- 11/25/2017 11:56:29 AM
asp.net-mvc jQuery

Do you just want to know which way(JSON or string) is better or you want to know complete idea with code example about how to pass data to controller ? 0
By : vikas_jk - at :- 11/25/2017 5:53:26 PM





1 Answers
profileImage Answered by:- vikas_jk

You need to pass the value as a string, not List<string> to the controller using Ajax, but before that get Selected checkbox values on button click and Join then using "," then split them in controller using C#

Suppose below is your HTML

<div>
Checkbox 1 <input type="checkbox" class="CheckboxClass" value="a" id="chkBox1" name="chkBox1" />A
<input type="checkbox" value="b"  class="CheckboxClass" id="chkBox1" name="chkBox1"  />B
<input type="checkbox" value="1"   class="CheckboxClass" id="chkBox1" name="chkBox1"  />1
</div>

<div>
Checkbox 2 <input type="checkbox"  class="CheckboxClass" value="2" id="chkBox2" name="chkBox2" />2
<input type="checkbox" value="f"  class="CheckboxClass" id="chkBox2" name="chkBox2"  />F
<input type="checkbox" value="g"  class="CheckboxClass"  id="chkBox2" name="chkBox2"  />G
</div>

<input type="button" id="Delete" Value="Delete Selected Checkbox" />


<div id="confirmBox">
    <div class="message"></div>
    <span class="button yes">Delete</span>
    <span class="button no">No</span>
</div>

CSS

#confirmBox
{
    display: none;
    background-color: #eee;
    border-radius: 5px;
    border: 1px solid #aaa;
    position: fixed;
    width: 300px;
    left: 50%;
    margin-left: -150px;
    padding: 6px 8px 8px;
    box-sizing: border-box;
    text-align: center;
}
#confirmBox .button {
    background-color: #ccc;
    display: inline-block;
    border-radius: 3px;
    border: 1px solid #aaa;
    padding: 2px;
    text-align: center;
    width: 80px;
    cursor: pointer;
}
#confirmBox .button:hover
{
    background-color: #ddd;
}
#confirmBox .message
{
    text-align: left;
    margin-bottom: 8px;
}

Then javascript/jQuery to get Selected checkboxes and alert user about it would be 

function doConfirm(msg, yesFn, noFn) {
    var confirmBox = $("#confirmBox");
    confirmBox.find(".message").text(msg);
    confirmBox.find(".yes,.no").unbind().click(function () {
        confirmBox.hide();
    });
    confirmBox.find(".yes").click(yesFn);
    confirmBox.find(".no").click(noFn);
    confirmBox.show();
}

//On delete buttton click call jquery function to Get Selected Checkbox
$("#Delete").on('click',function(){
var Count=0;
var checkedVals = $('.CheckboxClass:checkbox:checked').map(function() {
Count++;
    return this.value;
}).get();
var SelectedValue=checkedVals.join(",");
//Confirm now
doConfirm("Are you sure, you are going to delete "+Count+" items (" + checkedVals.join(",") +")", function yes() {
            //Send to controller using Ajax
           // $.ajax({
        //    url:'/Controller/Action',
       //     data:{SelectedValues:SelectedValue},
     //       success:function(){
    //   }
            
         //   })
        }, function no() {
            // do nothing
        });


})

Working Fiddle link here

Now in the MVC Controller, get Selected Checkboxes as string, and then Split to get individual values

public ActionMethod DeleteData(string SelectedCheckbox)
{
  var SplitedValues= SelectedCheckbox.Split(','); //which will return your array

//loop through each values
 foreach(var val in SplitedValues)
{
 //do something here with each value
}
  
return View();
}

Now you can loop through individual values 

3
At:- 11/26/2017 9:08:58 AM Updated at:- 11/26/2017 9:10:23 AM





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