本文整理汇总了C#中System.Windows.Forms.Control.TextChanged事件的典型用法代码示例。如果您正苦于以下问题：C# Control.TextChanged事件的具体用法？C# Control.TextChanged怎么用？C# Control.TextChanged使用的例子？那么, 这里精选的事件代码示例或许可以为您提供帮助。
在下文中一共展示了Control.TextChanged事件的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: currencyTextBox_TextChanged
private void currencyTextBox_TextChanged(object sender, EventArgs e)
{
try
{
// Convert the text to a Double and determine if it is a negative number.
if(double.Parse(currencyTextBox.Text) < 0)
{
// If the number is negative, display it in Red.
currencyTextBox.ForeColor = Color.Red;
}
else
{
// If the number is not negative, display it in Black.
currencyTextBox.ForeColor = Color.Black;
}
}
catch
{
// If there is an error, display the text using the system colors.
currencyTextBox.ForeColor = SystemColors.ControlText;
}
}