Adding custom events to ASP controls

Question

I'm building a website using ASP and C# and I wanted to know if it's possible to add a custom events to an asp control.

I want to add an OnClick, OnMouseDown, OnMouseUp (etc.) event to <asp:image>.

Is it possible?

Thanks in advance

Nudier Mena · Accepted Answer · 2012-09-06 22:33:59Z

4

yes you can do it this way.

HTML

 <asp:Image runat="server" ID="Image1"  />

CODE BEHIND

    protected void Page_Load(object sender, EventArgs e){

        this.Image1.Attributes.Add("onmouseup", "alert('this is the OnMouseUp event')");

    }

EDIT

  It can be do it using DHTML but as you may know 
  DHTML is the art of combining HTML, JavaScript, DOM, and CSS.

  protected void Page_Load(object sender, EventArgs e){
        //change the Image Url when the click event fire
        this.Image1.Attributes.Add("onclick", "this.src='image1.jpg'");

    }

edited Sep 6, 2012 at 22:33

answered Sep 6, 2012 at 21:35

Nudier Mena

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2 Comments

lsxliron Over a year ago

Is there any way to do it without JavaScript?

Nudier Mena Over a year ago

@lsxliron yes you can use DHTML to add event to the html elments and react to this events.

Edee · Accepted Answer · 2012-09-06 22:11:06Z

0

Note that mouse events may be impractical to be handled on the server, It's better for them to be handled locally (quicker) on the client, so the network speed does not have an impact on how fast your event is processed.

answered Sep 6, 2012 at 22:11

Edee

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