Hi Dave,
The MaskedTextBox class is an enhanced TextBox control that supports a
declarative syntax for accepting or rejecting user input. Generally
speaking, MaskedTextBox control is used in user input scenarios.
After we set the Mask property of a masked textbox control, the text in the
masked textbox is formatted according to the mask string. In your progam,
the previous text which is going to be displayed in the masked textbox is
'49.5000' and after the masked textbox's formatting, the text becomes
'$495.00'. Note that the character '.' in the previous text is removed
because this character isn't a valid number. And the character '.' in the
formatted text is the literal character defined in the mask string.
I don't think MaskedTextBox control is applicable to your scenario, since
you bind the masked textbox control to a data source to display the value
within the data source. I recommend you to use a textbox instead. As for
displaying the character '$' before the value from the data source, you
could handle the Format event of the Binding object that belongs to the
textbox.
The following is a sample.
public Form1()
{
this.textBox1.D ataBindings[0].Format += new
ConvertEventHan dler(Form1_Form at);
}
void Form1_Format(ob ject sender, ConvertEventArg s e)
{
e.Value = "$" + e.Value.ToStrin g();
}
Hope this helps.
If you have anything unclear, please feel free to let me know.
Sincerely,
Linda Liu
Microsoft Online Community Support
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