Validation Source Code C#.Net WinForms
private bool Validation()
{
bool result = false;
if (string.IsNullOrEmpty(textBox1.Text))
{
errorProvider1.Clear();
errorProvider1.SetError(textBox1, "Product Id Required");
}
else if (string.IsNullOrEmpty(textBox2.Text))
{
errorProvider1.Clear();
errorProvider1.SetError(textBox2, "Product Name Required");
}
else if (string.IsNullOrEmpty(textBox3.Text))
{
errorProvider1.Clear();
errorProvider1.SetError(textBox3, "Price Required");
}
else if (string.IsNullOrEmpty(textBox4.Text))
{
errorProvider1.Clear();
errorProvider1.SetError(textBox4, "Quantity Required");
}
else
{
result = true;
}
return result;
}
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