Question

I’ve created a user control that contains a button and a few other controls.

When declaring my user control in the html markup I’d like to do some sort of :

<asp:CustomControl onclick="CustomControl_Click" ID="cc1" runat="server"> 

Where CustomControl_Click is obviously the action I want to call when my control’s button is clicked.

So far in my control I have:

public event EventHandler Click;

    protected void Button1_Click(object sender, EventArgs e)
    {
        Click.Invoke(sender, e);
    }

but how can I forward the Eventhandler of the parent page to assign it to the Click Eventhandler in my control?

Any help is really appreciated!

PS: maybe there’s a way of getting the method from the hosting page using reflexion

Answer 1

I’m using a custom button (actually html div with LinkButton embedded in it). Here is code of it:

    public delegate void ClickEventHandler(object sender, EventArgs e);
    public event ClickEventHandler Click =  delegate { };

    public string Text
    {
        get { return cmdLink.Text; }
        set { cmdLink.Text = value; }
    }

    public bool CausesValidation
    {
        get { return cmdLink.CausesValidation; }
        set { cmdLink.CausesValidation = value; }
    }

    public string OnClientClick
    {
        get { return cmdLink.OnClientClick; }
        set { cmdLink.OnClientClick = value; }
    }

    public string CssClass
    {
        get { return cmdLink.CssClass; }
        set { cmdLink.CssClass = value; }
    }

    protected void cmdLink_Click(object sender, EventArgs e)
    {
        Click(this, e);
    }

Here is usage in aspx page:

<Button_Control:ButtonControl ID="btnSave" runat="server" Text="Save" 
          OnClick="btnSaveClick" />

and this is in code-behind page of aspx page:

    protected void btnSaveClick(object sender, EventArgs e)
    {
        //do stuff here
    }