I currently work on a Windows Forms application and I have 2 Panels with textboxes in them and I need to check the panel's textboxes separately if they are not empty, so it is not an option to loop through all the controls in the form.
foreach (Control child in this.Controls)
{
TextBox textBox = child as TextBox;
if (textBox != null)
{
if (!string.IsNullOrWhiteSpace(textBox.Text))
{
MessageBox.Show("Text box can't be empty");
}
}
}
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