using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace Deckungsbeitrag { public partial class UCAuftrag : UserControl { public UCAuftrag() { InitializeComponent(); this.Size = new Size(265, 70); this.pictureBoxCollapse.Visible = false; this.textBoxExtra.Enabled = false; if (!string.IsNullOrEmpty(textBoxExtra.Text)) pictureBoxExpand.BackColor = Color.Yellow; else pictureBoxExpand.Enabled = false; //Priorität mit BackColor...!! } private void pictureBoxes_Click(object sender, EventArgs e) { if(this.Size.Height == 148) { this.Size = new Size(200, 60); this.pictureBoxCollapse.Visible = false; this.pictureBoxExpand.Visible = true; } else { this.Size = new Size(200, 148); this.pictureBoxCollapse.Visible = true; this.pictureBoxExpand.Visible = false; } } } }