How to dispatch Click event on Label?

Question

Hi I have a very simple question. In a Windows Form I have a series of Labels which have several Event Handlers defined. When a button is clicked I would like to loop through all these Labels and dispatch the Click event on each. Now if they were buttons I could simply call label.PerformClick() but this doesn't exist for Labels (and no I can't change them to buttons!). So how do I dispatch the Click event (or any of the other built-in events) for a control? (From an ActionScript perspective this would be simply label.dispatchEvent(new Event(MouseEvent.CLICK)) ) Thanks for your help.

Jitendra Kumar Thakur · Answer

It is feaible using the custom Control. We faced the same problem and solved it using the custom control codes are as follows: using System; using System.Drawing; using System.Windows.Forms; namespace Scan2FM { /// /// Summary description for CLabel. /// public class CLabel: System.Windows.Forms.Control { //Implements Label as I expect it to be (more or less...) private BorderStyle borderStyle = BorderStyle.None; private ContentAlignment textAlignment = ContentAlignment.TopLeft; // Accessing the font object of the Base Class throws a nasty exception! // So I am using my own font. private string fontName = Tahoma; private int fontSize = 10; private FontStyle fontStyle = FontStyle.Regular; public event EventHandler labelClick; public event PaintEventHandler labelPaint; public CLabel() { } public BorderStyle BorderStyle { get {return this.borderStyle;} set {this.borderStyle = value;} } public string FontName { get {return this.fontName;} set {this.fontName = value;} } public int FontSize { get {return this.fontSize;} set {this.fontSize = value;} } public FontStyle FontStyle { get {return this.fontStyle;} set {this.fontStyle = value;} } public ContentAlignment TextAlignment { get {return this.textAlignment;} set {this.textAlignment = value;} } protected override void OnPaint(System.Windows.Forms.PaintEventArgs pe) { Graphics graphics = pe.Graphics; Pen pen = new Pen(Color.Black); SolidBrush brush = new SolidBrush(ForeColor); Font font = new Font(this.fontName this.fontSize this.fontStyle); SizeF s; if (this.BorderStyle == BorderStyle.FixedSingle) graphics.DrawRectangle(pen 0 0 this.Width - 1 this.Height - 1); else if (this.BorderStyle == BorderStyle.Fixed3D) graphics.DrawRectangle(pen this.ClientRectangle); s = graphics.MeasureString(this.Text font); switch (this.textAlignment) { case ContentAlignment.TopCenter: graphics.DrawString(this.Text font brush (this.Width - s.Width) / 2 (this.Height - s.Height) / 2); break; case ContentAlignment.TopLeft: graphics.DrawString(this.Text font brush 2 (this.Height - s.Height) / 2); break; case ContentAlignment.TopRight: graphics.DrawString(this.Text font brush this.Width - s.Width - 2 (this.Height - s.Height) / 2); break; } pen.Dispose(); brush.Dispose(); font.Dispose(); if (labelPaint != null) labelPaint(this pe); base.OnPaint(pe); } protected override void OnClick(System.EventArgs e) { if (labelClick != null) labelClick(this e); base.OnClick(e); } } }

Christian Wirth · Answer

I don´t think this is possible. But why don´t you call the eventhandler methods directly instead? They are just methods after all... public Constructor() { Label l = new Label(); l.Click += new EventHandler(l_Click); } //HANDLER void l_Click(object sender EventArgs e) { //Do something } //instead of raising the clickevent just call l_Click(l new EventArgs());