Mega Code Archive

 
Categories / C# / GUI Windows Form
 

Form Focus event

using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; public class FocusForm : System.Windows.Forms.Form {     private System.Windows.Forms.TextBox txtFocusForm;     private System.Windows.Forms.Button btFocusForm;     public FocusForm() {         this.txtFocusForm = new System.Windows.Forms.TextBox();         this.btFocusForm = new System.Windows.Forms.Button();         this.SuspendLayout();         this.txtFocusForm.Location = new System.Drawing.Point(8, 8);         this.txtFocusForm.Size = new System.Drawing.Size(336, 20);         this.txtFocusForm.LostFocus += new System.EventHandler(this.txtFocusForm_LostFocus);         this.txtFocusForm.GotFocus += new System.EventHandler(this.txtFocusForm_GotFocus);         this.btFocusForm.Location = new System.Drawing.Point(8, 40);         this.btFocusForm.Size = new System.Drawing.Size(336, 23);         this.btFocusForm.Click += new System.EventHandler(this.btFocusForm_Click);         this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);         this.ClientSize = new System.Drawing.Size(352, 70);         this.Controls.AddRange(new System.Windows.Forms.Control[] {                                       this.btFocusForm,                                       this.txtFocusForm});         this.ResumeLayout(false);     }     [STAThread]     static void Main() {         Application.Run(new FocusForm());     }     protected void txtFocusForm_LostFocus(object sender, EventArgs e) {         Console.WriteLine("Goodbye!");     }     protected void txtFocusForm_GotFocus(object sender, EventArgs e) {         Console.WriteLine("Hello!");     }     private void btFocusForm_Click(object sender, System.EventArgs e) {         bool canFocus = txtFocusForm.CanFocus;         bool containsFocus = this.ContainsFocus;         bool focused = txtFocusForm.Focused;         Console.WriteLine("Textbox can focus: " + canFocus +                      "\nForm children contain focus: " + containsFocus +                      "\nTextbox has focus: " + focused);         txtFocusForm.Focus();     } }