[Solved] Checking if all textboxes in a panel a filled


Perhaps something like this:

    foreach(Panel pnl in Controls.OfType<Panel>())
    {
        foreach(TextBox tb in pnl.Controls.OfType<TextBox>())
        {
            if(string.IsNullOrEmpty(tb.Text.Trim()))
            {
                MessageBox.Show("Text box can't be empty");
            }
        }
    }

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solved Checking if all textboxes in a panel a filled