how to get selcted check boxes count in C#.net in windows apllication

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C#

ASP.NET

Windows

Hello,
I want to get selected Check boxes count in windows Can u guide or send any snippets

Posted 1-May-12 22:39pm

kingsa

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Abhinav S 2-May-12 4:46am

Which countrol are you using? ListView?

tanweer 2-May-12 4:47am

it depend on how you added CheckBoxes to your Form, did you add CheckBoxList or all these are checkbox control?

Ravinder_Verma 2-May-12 5:28am

You need to let us know, what are the control hierarchy in your window form? The solution depends upon the control hierarchy.

4 solutions

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hitech_s · Answer 1 · 2012-05-01T22:51:00

Solution 2

if the checkboxes are added directly to the form then you can use this.

C#

int counter = 0;
           foreach (Control c in this.Controls)
               if (c is CheckBox)
                   if (((CheckBox)c).Checked)
                       counter++;

           MessageBox.Show(counter.ToString());

Posted 1-May-12 22:51pm

hitech_s

Updated 1-May-12 22:53pm

v2

Comments

Shahin Khorshidnia 2-May-12 7:56am

+5 because It works

hitech_s 2-May-12 23:57pm

Thank you 'shahin khorshidnia'

VJ Reddy · Answer 2 · 2012-05-01T23:36:00

Solution 4

If the requirement is to count the CheckBoxes which are Checked, then the following LINQ query can be used

C#

for(int i=0; i< 10; i++){
    CheckBox chkBox = new CheckBox();
    if (i % 2==0)
        chkBox.Checked = true;
    Controls.Add(chkBox);
}
Controls.Add(new TextBox());
Controls.Add(new Button());

int selectedCheckBoxesCount = Controls.OfType<CheckBox>()
                            .Count (cb => cb.Checked);

//selectedCheckBoxesCount
//5

Posted 1-May-12 23:36pm

VJ Reddy

Updated 2-May-12 0:46am

v2

Comments

Shahin Khorshidnia 2-May-12 7:30am

+5 But I think int "selectedCheckBoxesCount = Controls.OfTy..." is enough

VJ Reddy 2-May-12 7:44am

Thank you, Shahin.
But here in selectedCheckBoxesCount = Controls, selectedCheckBoxesCount is of type int and Controls is a control collection. I could not get the point. Can you please elaborate.

Shahin Khorshidnia 2-May-12 17:49pm

Sorry typing mistake :D I meant the last lines (11 and 12) of your code ("int selectedCheckBoxesCount = Controls.OfType<checkbox>().Count (cb => cb.Checked);") was good enough and I didn't get the intention of lines 1 to 9. You created some check boxes then you added them to the current form. (why?)

VJ Reddy 2-May-12 20:14pm

Thank you for answering.
I created CheckBoxes etc. so that one can easily check the above statement
by creating a windows forms application and by pasting the above code in the Load event of Form.
As you have rightly pointed out the last statement before comment is the one which does the work.

Thank you.

Shahin Khorshidnia 2-May-12 20:22pm

Thank you.

nagendrathecoder · Answer 3 · 2012-05-01T22:44:00

Solution 1

Loop through all controls on form, find each check box, if its checked then increment counter by 1.

Refer this[^] link.

Posted 1-May-12 22:44pm

nagendrathecoder

Updated 1-May-12 22:45pm

v2

Comments

Shahin Khorshidnia 2-May-12 7:59am

The link doesn't consider the CheckBox is Checked.
My vote of 4

preet88 · Answer 4 · 2012-05-01T22:52:00

Solution 3

hi..
suppose you have ChekedListBox control (name as clbCount) then use the following statement to have a count of checked items in list

clbCount.CheckedItems.Count.
hope you have got the answer.
mark as solved if u've got your answer

Posted 1-May-12 22:52pm

preet88