It's actually "Veni, vidi, vici" :-D

- Xint0

Yes there is. Use the DataGridView designer to modify the properties for the column. Also try using a BindingSource (bound to your DataSet) as the data source for the DataGridView. That way you can bind the DataGridView rows to one table and the ComboBoxColumn drop-down to another table easily through the designer.

- Xint0

Matt Casto wrote:

If you run the sample code, you might notice that the SetValue doesn't even call the implicit conversion from string to CustomThing.

That's because SetValue uses Object type for the value. Try adding an implicit conversion from Object to CustomThing.

- Xint0

Try this:

...
If (e.KeyChar < '0' Or e.KeyChar > '9') And e.KeyChar <> '\b' Then
...

Additionally if using .NET 2.0 probably it would be better if you used PreviewKeyDown event:

Private Sub num_PreviewKeyDown(ByVal sender As Object, e As PreviewKeyDownEventArgs)
e.IsInputKey = ((e.KeyCode = Keys.Back) And (e.Modifiers = 0)) Or ((e.KeyCode >= Keys.D0 Or e.KeyCode <= D9 Or e.KeyCode >= Keys.NumPad0 Or e.KeyCode <= Keys.NumPad9) And (e.Modifiers = 0))
End Sub

This way you can handle key combinations like Alt + 0, Ctrl + Backspace, etc. If using .NET 1.1 then use KeyDown to set a flag and check the flag value on the KeyPress event to set the Handled property.

- Xint0

How about using a hash-table for the counters and forget about the nested loops. Assuming you are doing this with .NET 2.0, here's my take on this:

private string DoCount(string input)
{
    string alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890\u0027\u002E\u002C\u003A\u003B\u003F\u0021\u0023\u0028\u0029";
// create hash-table for counters, set initial capacity to number of counters (characters in alphabet).
    Dictionary counters = new Dictionary(alphabet.Length); 
//initialize just to be safe:
    foreach(char c in alphabet)
        counters[c] = 0;
//count the characters in the input string:
    foreach(char c in input)
        if(counters.ContainsKey(c))
            counters[c]++;
//now output statistics
    string output = string.Empty;
    for (int i = 0; i < alphabet.Length; i++)
    {
        flost percent = 0.0F;
        char c = alphabet[i];
        int count = counters[c];
        if(count > 0)
             percent = (float)count / input.Length;
        output += string.Format("Letter {0} is displayed {1} times.  It is {2:P2} of the whole text.{3}", c, count, percent, Environment.NewLine);
    }
    return output;
}

Hope it works for you. :-D -- modified at 22:56 Thursday 26th October, 2006

- Xint0 :cool: