how to count number of checkbox selected in checkedlistbox

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C#

i need to count how many checkbox got selected in the checkedlistbox

Posted 7-Nov-12 21:43pm

Umapathi K

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4 solutions

Solution 4

you can do like

XML

for (int i=0; i<checkboxlist1.Items.Count; i++)
         {

            if (checkboxlist1.Items[i].Selected)
            {

               Message.Text += checkboxlist1.Items[i].Text + "<br>";

            }

         }

For more detail follow msdn link
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.checkboxlist%28v=vs.71%29.aspx[^]

Posted 7-Nov-12 21:51pm

gajendra_kshatriya

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Umapathi K 8-Nov-12 4:00am

i am checking validation like if user select more than 2 items in a checkedlistbox should throw error and last selected checkbox should get uncheck. i am getting error message but last checkbox getting selected.

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jim lahey · Accepted Answer · 2012-11-07T21:48:00

Solution 2

Here you go:

C#

var count = checkedListBox1.SelectedItems.Count;

Posted 7-Nov-12 21:48pm

jim lahey

Comments

StackQ 8-Nov-12 3:50am

it's perfect answer

jim lahey 8-Nov-12 3:54am

thanks. glad to be of help.

StackQ 8-Nov-12 3:57am

it's okay

Umapathi K 8-Nov-12 4:00am

i am checking validation like if user select more than 2 items in a checkedlistbox should throw error and last selected checkbox should get uncheck. i am getting error message but last checkbox getting selected.

jim lahey 8-Nov-12 4:08am

If you want help with this post it as a question. It will just get lost in all the comments otherwise.

Umapathi K 8-Nov-12 4:16am

thanx

Storxstar · Accepted Answer · 2012-11-07T21:49:00

Solution 3

C#

int icount = 0;
foreach (ListItem lItem in Listbox.Items)
{
 if (lItem.Selected == true)
 {
   icount++
 }
}

Posted 7-Nov-12 21:49pm

Storxstar

Comments

Umapathi K 8-Nov-12 3:59am

i am checking validation like if user select more than 2 items in a checkedlistbox should throw error and last selected checkbox should get uncheck. i am getting error message but last checkbox getting selected.

StackQ · Accepted Answer · 2012-11-07T21:47:00

Solution 1

run loop for every check box,check true or false if true then checkboxCount++ and if false then do nothing ,At the end of loop at variable checkboxCount u will find how many checkbox checked.

Posted 7-Nov-12 21:47pm

StackQ

Comments

Umapathi K 8-Nov-12 4:00am

i am checking validation like if user select more than 2 items in a checkedlistbox should throw error and last selected checkbox should get uncheck. i am getting error message but last checkbox getting selected.

StackQ 8-Nov-12 4:03am

with my logic after the value of checkboxCount++, u can check it in if-else condition and if,it's value is greater than >2(what u want u can put 2,3,4...) then show error else nothing.

Umapathi K 8-Nov-12 4:08am

when error message appears after that if user try to choose more than 2 checkbox getting select., it shud not happen

StackQ 8-Nov-12 4:13am

so u have to give a textbox where user will input how many check box he wants to check,then set this value at greater than > (as user specify)