CODEWITHSUNDEEP
c#checkedlistbox
Phil
Phil

Reputation: 147

How to I get the currently selected check value from CheckedListBox?

I have a CheckedListBox control with 6 checkboxes to choose from. I am trying to detect the following:

User checks the third index and changes the value from unchecked to checked. Internal: Call an event - Grab the checked value of that third index.

That seems to suggest add a SelectedIndexChanged event. That doesn't tell me the user changed the value.

There's another: SelectedValueChanged.

I don't know if that tells me anything at all either, as the function is:

*_SelectedValueChanged(object sender, EventArgs e)

EventArgs is kind of useless to get this required information.

Again, I simply need to get the checked value of the item the user just selected. I'm not interested in gathering all selected items. Just the current one selected. Thanks.

Upvotes: 1

Views: 4823

Answers (1)

41686d6564
41686d6564

Reputation: 19641

In order to get the displayed value (content) of the selected item you can use something like the following:

Console.WriteLine(checkedListBox1.Items[checkedListBox1.SelectedIndex].ToStr‌​ing());

Or a shorter version:

Console.WriteLine(checkedListBox1.SelectedItem.ToString());

To determine if the selected item is checked or not, you can use something like the following:

Console.WriteLine(checkedListBox1.CheckedItems.Contains(checkedListBox1.SelectedItem));

This will be checking if the content of the selected item can be found among the checked items. That could lead to a wrong result if your CheckedListBox has duplicates. To avoid this, you might check for the index instead of the value, like this:

Console.WriteLine(checkedListBox1.CheckedIndices.Contains(checkedListBox1.SelectedIndex));

Edit: An even better solution I just found, is to use the GetItemChecked method. Something like the following would work perfectly:

Console.WriteLine(checkedListBox1.GetItemChecked(checkedListBox1.SelectedIndex));

Hope that helps :)

Upvotes: 2

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