An FYI...

We had a codecamp in LA this weekend. One of the presentations I went to was on Delegates/Events. The example was a bunch of little forms that were listening for an event on the main form. The presenter added a try, catch to show what would happen to all the forms in the listening chain when he forced an error.

It was very dramatic to see how slow all the forms now painted due to the exception being raised.

Just to reinforce your comment last week about exceptions being expensive.

>That doesn't look too bad, Einar. My problem was trying to figure out how to bind to a DataTable instead of a property.
>
>~~Bonnie
>
>
>
>>Thanks for the reply. I guess I was expecting that reply from what I have been reading around the internet.
>>After posting the original message I discovered that the problem I had was not related to the way I databind a radiobutton group.
>>Here is the code I use to databind a usercontrol with 7 radiobuttons (I would normaly use an enum instead of the int but I didn't feel like creating en enum for this example):
>>

>>public int UserControlValue
>>{
>>	get
>>	{
>>		int i = 1;
>>		if (this.radioButton1.Checked)
>>			i = 1;
>>		if (this.radioButton2.Checked)
>>			i = 2;
>>	         if (this.radioButton3.Checked)
>>			i = 3;
>>		if (this.radioButton4.Checked)
>>			i = 4;
>>		if (this.radioButton5.Checked)
>>			i = 5;
>>		if (this.radioButton6.Checked)
>>			i = 6;
>>		if (this.radioButton7.Checked)
>>			i = 7;
>>		return i;
>>	}
>>	set
>>	{
>>		if (value == 1)
>>			this.radioButton1.Checked = true;
>>		if (value == 2)
>>			this.radioButton2.Checked = true;
>>		if (value == 3)
>>			this.radioButton3.Checked = true;
>>		if (value == 4)
>>			this.radioButton4.Checked = true;
>>		if (value == 5)
>>			this.radioButton5.Checked = true;
>>		if (value == 6)
>>			this.radioButton6.Checked = true;
>>		if (value == 7)
>>			this.radioButton7.Checked = true;
>>	}
>>}
>>
>>public void DataBind(object o)
>>{
>>	this.DataBindings.Clear();
>>	this.DataBindings.Add("UserControlValue", o, "ObjectValue");
>>}
>>

>>
>>Please let me know if you see any problems with this. It is a shame to let a good usercontrol (like the radiobutton) go to waste :)
>>
>>Einar
>>
>>>Here's the secret to radio buttons ... DON'T <g> ... I could never figure out a good way to make them work, they were just too much trouble for me, so I just don't bother to use them.
>>>
>>>Thanks for the confidence in my ability to answer every question you ever ask, but I guess I let you down on this one. <g> Maybe someone else has some tips for getting these puppies to behave properly, but I sure don't.
>>>
>>>I wonder if they've improved at all in 2.0? I haven't tried.
>>>
>>>~~Bonnie
>>>
>>>
>>>
>>>>Bonnie,
>>>>This is the last DataBindings question I promise (I have my fingers crossed just in case <s>, which makes it really difficult to type<s>).
>>>>
>>>>The control of the hour is the radiobutton. I have in the past created a property in my usercontrol (containing a number of radio), the set would check one of the radiobuttons and the get would return a value related to the checked radiobutton. Then I would have a similar (same type) property in my biz object. Then I would do the following to databind the usercontrol:
>>>>

>>>>this.myUserControl.DataBindings.Add("myUserControlProperty", myObject, "myObjectProperty")
>>>>

>>>>
>>>>This worked great until I late last night noticed some odd behaviour.
>>>>
>>>>So after I was 100% sure that the Panthers would loose :) I created a test app: a usercontrol with 7 radiobuttons, a class with 7 bool properties. The usercontrol also has a method called DataBind where I add a databinding between each of the radiobuttons and the appropriate object property. I called the DataBind method from the form's load event. I guess I expected it to work, but I wasn't surprised when it didnt work.
>>>>
>>>>So any hints for my radiobuttin "group" data binding?
>>>>
>>>>Thanks,
>>>>Einar
>>>>
>>>>PS. Anyone can reply I just figured Bonnie would reply first so I might as well create the message to her.
>>>>
>>>>UPDATE: I just discovered that my radio button group binding issue was related to something else. I am not exacly sure what, but I am sure it is something else. Any who I would still like to know how ya'll bind a radiobutton group.