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C# code:
private void tb1_TextChanged(object sender, EventArgs e)
{
if(this.tb1.MaxLength>=50)
MessageBox.Show("Length >= 50!");
}
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function checkLength(which) {
var maxChars = 20;
if (which.value.length > maxChars)
which.value = which.value.substring(0,maxChars);
var curr = maxChars - which.value.length;
}
</script&
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