How do you bind data to a CheckedListBox?

[inyoursadachine]

Hi, Can anyone tell me (via example is preferred) how to bind to a CheckedListBox in a Windows Form? All the docs I've seen allow you to bind to a control property (i.e. TextBox.Text) to an instance variable property. How do you bind to both the 'ItemText' and 'Checked' values for each Item in a CheckedListBox? TIA, Matt p.s. Also, I'm new here and I did look for a way to search all threads on the C# Discussion board but did not see how. Please advise.

[Heath Stewart]

The CheckedListBox does not support data-binding like that. First, you can add whatever objects you want to it. If the objects you're adding have ItemText and Checked properties, then you merely need to coordinate the event handlers for the CheckedListBox and set the Checked property of your object so that you can keep track of what's checked and what's not.

public class MyItem
{
private string itemText;
private bool checked;
public MyItem() : this(null, false)
{
}
public MyItem(string itemText, bool checked)
{
this.itemText = itemText;
this.checked = checked;
}
public string ItemText
{
get { return this.itemText; }
set { this.itemText = value; }
}
public bool Checked
{
get { return this.checked; }
set { this.checked = value; }
}
}
// ...
public void AddItem(MyItem item)
{
int index = checkedListBox1.Items.Add(item);
checkedListBox1.SetItemCheckState(index,
item.Checked ? CheckState.Checked : CheckState.Unchecked);
}
// handler for CheckedListBox.ItemCheck
private void checkedListBox1_ItemCheck(object sender, ItemCheckEventArgs e)
{
MyItem item = checkedListBox1.Items[e.Index];
item.Checked = e.NewValue == CheckState.Checked;
}

You can always get the items out of CheckedListBox.Items whenever you want.

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