How to assign event to dynamically generated asp:button?

[hb]

Hi,

When I add an asp:button (ex: id=btnLog) on home.aspx,
I need to create btnLog_Click() event in home.aspx.cs,
and also link this event and the button in OnInit() method
by adding:
this.btnLog.Cli ck +=new System.EventHan dler(this.btnLo g_Click);

Now, I need to generate some asp:button dynamically in
an asp:table, and assign the event to all buttons. But in
the event, I need to retrieve the ID of the clicked button.

Would you please tell me:
1. how can I assign the event to a dynamically generated button?
2. how can I add the link between a specific button and the event in
OnInit()
method?
3. how can I retrieve the ID of the clicked button(i.e. the button
that fires the event)?

Thank you

hb

[Karl Seguin]

Button btn = new Button();
btn.ID = "firstButto n";
btn.Click += new System.EventHan dler(this.btnLo g_Click);
SomeParentContr ol.Controls.Add (btn);

btn = new Button();
btn.ID = "second";
btn.Click += new System.EventHan dler(this.btnLo g_Click);
SomeParentContr ol.Controls.Add (btn);

public void btnLog_Click(ob ject sender, EventArgs e) {
string id = ((Button)sender ).ID;
}
The controls need to be created on postback as well, so no wrapping it in a
if (!Page.IsPostBa ck) {}

Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"hb" <ho****@goodoff ices.com> wrote in message
news:us******** ******@TK2MSFTN GP11.phx.gbl...

Hi,

When I add an asp:button (ex: id=btnLog) on home.aspx,
I need to create btnLog_Click() event in home.aspx.cs,
and also link this event and the button in OnInit() method
by adding:
this.btnLog.Cli ck +=new System.EventHan dler(this.btnLo g_Click);

Now, I need to generate some asp:button dynamically in
an asp:table, and assign the event to all buttons. But in
the event, I need to retrieve the ID of the clicked button.

Would you please tell me:
1. how can I assign the event to a dynamically generated button?
2. how can I add the link between a specific button and the event in
OnInit()
method?
3. how can I retrieve the ID of the clicked button(i.e. the button
that fires the event)?

Thank you

hb

[Amar]

> 1. how can I assign the event to a dynamically generated button?

OnInit Event of form add

Button btn1 = new Button();
btn1.ID = "Test";
btn1.Click += new EventHandler(My ButtonClick);
LocateForm(this ,btn1); -- FUNCTION TO ADD THE BUTTON

private void LocateForm(Cont rol ctrl, Button btn){
foreach(Control mCtrl in ctrl.Controls){
if (mCtrl.GetType( ) == typeof(HtmlForm )){
mCtrl.Controls. Add(btn);
}else{
LocateForm(mCtr l,btn);
}
}
}

private void MyButtonClick(o bject sender, System.EventArg s e){
// DO SOMETHING
}

3. how can I retrieve the ID of the clicked button(i.e. the button
that fires the event)?

On The Previous function
private void MyButtonClick(o bject sender, System.EventArg s e){
string buttonID = ((Button)sender ).ID;
// DO SOMETHING
}

[hb]

Hi, Karl,

It works! Thank you for the help!

HB
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:OV******** ******@TK2MSFTN GP09.phx.gbl...

Button btn = new Button();
btn.ID = "firstButto n";
btn.Click += new System.EventHan dler(this.btnLo g_Click);
SomeParentContr ol.Controls.Add (btn);

btn = new Button();
btn.ID = "second";
btn.Click += new System.EventHan dler(this.btnLo g_Click);
SomeParentContr ol.Controls.Add (btn);

public void btnLog_Click(ob ject sender, EventArgs e) {
string id = ((Button)sender ).ID;
}
The controls need to be created on postback as well, so no wrapping it in a if (!Page.IsPostBa ck) {}

Karl
--
MY ASP.Net tutorials
http://www.openmymind.net/
"hb" <ho****@goodoff ices.com> wrote in message
news:us******** ******@TK2MSFTN GP11.phx.gbl...

Hi,

When I add an asp:button (ex: id=btnLog) on home.aspx,
I need to create btnLog_Click() event in home.aspx.cs,
and also link this event and the button in OnInit() method
by adding:
this.btnLog.Cli ck +=new System.EventHan dler(this.btnLo g_Click);

Now, I need to generate some asp:button dynamically in
an asp:table, and assign the event to all buttons. But in
the event, I need to retrieve the ID of the clicked button.

Would you please tell me:
1. how can I assign the event to a dynamically generated button?
2. how can I add the link between a specific button and the event in
OnInit()
method?
3. how can I retrieve the ID of the clicked button(i.e. the button
that fires the event)?

Thank you

hb

[hb]

Hi, Amar,

It works! Thank you for your help!

hb
"Amar" <am******@yahoo .com> wrote in message
news:7c******** *************** ***@posting.goo gle.com...

1. how can I assign the event to a dynamically generated button?

OnInit Event of form add

Button btn1 = new Button();
btn1.ID = "Test";
btn1.Click += new EventHandler(My ButtonClick);
LocateForm(this ,btn1); -- FUNCTION TO ADD THE BUTTON

private void LocateForm(Cont rol ctrl, Button btn){
foreach(Control mCtrl in ctrl.Controls){
if (mCtrl.GetType( ) == typeof(HtmlForm )){
mCtrl.Controls. Add(btn);
}else{
LocateForm(mCtr l,btn);
}
}
}

private void MyButtonClick(o bject sender, System.EventArg s e){
// DO SOMETHING
}

3. how can I retrieve the ID of the clicked button(i.e. the button
that fires the event)?

On The Previous function
private void MyButtonClick(o bject sender, System.EventArg s e){
string buttonID = ((Button)sender ).ID;
// DO SOMETHING
}