disable the checkbox in multiselect dropdown

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i have one multiselect dropdown.Here i can select multiple values.In that one option is there "ALL".when iam selecting "ALL" i want to check all the check boxes or disable it.Please help me.

Posted 9-Jul-13 7:05am

sony76

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joshrduncan2012 9-Jul-13 13:37pm

Where is your code? What is your question?

sony76 9-Jul-13 13:44pm

My code is similar to this one only.In that multi select dropdown i have on option "ALL".when iam selecting that option i want to check all the checkboxes inside multiselect dropdown(to select all the values coming in the dropdown)
http://www.codeproject.com/Articles/30829/Multiselect-DropDown-ListBox-Control-for-Web-Appli

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berrymaria · Answer 1 · 2013-07-09T14:31:00

Hi, try to make an event in selecting the item, then filter "ALL"
Like this:

C#

private void checkedListBox1_SelectedIndexChanged(object sender, EventArgs e)
{
     if (checkedListBox1.SelectedItem.ToString() == "ALL")
     {
          checkedListBox1.Enabled = false;

          for (int x = 0; x < checkedListBox1.Items.Count; x++)
          {
              checkedListBox1.SetItemChecked(x, true);
          }

          //OR DO SOMETHING..

     }
}

Manu V Nath · Answer 2 · 2013-07-09T19:05:00

Solution 2

Please use [^]
Open source implementation Its having all functionality including select ALL feature.

Posted 9-Jul-13 19:05pm

Manu V Nath