Bonnie,

The Position property must call every get that is used for databinding when the position is changed. This makes some sense though since it wants to update the DataRow before the row is changed and new values are fetched. Is this breaking your code? Doesn't this.m_BindThis have the correct value to replace the DataRow with?

>Cathi,
>
>Yes, I traced it and the get is fired when the Position changes ... this, I assume, is what's changing the underlying DataRow. But why does this happen?
>
>~~Bonnie
>
>
>>Bonnie,
>>
>>Have you tried tracing your code or putting in messages when the get and set are fired off? You are saying that you DataRow is getting changed when you change positions using BindingContext.Position and there has been no change by the user to the custom property?
>>
>>>Has anyone tried data-binding to a property that you've defined? I have the following (this is for a checkbox):
>>>
>>>

>>>protected bool m_BindThis;
>>>
>>>this.DataBindings.Add("BindThis", MyDataTable, "MyColumn");
>>>
>>>[Bindable(true)]
>>>public bool BindThis
>>>{
>>>  get {return this.m_BindThis;}
>>>  set
>>>  {
>>>    this.m_BindThis = value;
>>>    this.Checked = this.m_BindThis;
>>>  }
>>>}
>>>

>>>
>>>There's other things that need to be defined in this check-box subclass (like an Event Handler or two), but my problem isn't there. My problem is that as soon as the BindingContext.Position changes to a different row of the bound table, the value of the bound column gets changed (presumably by the get of the BindThis property). This obviously shouldn't happen, but I'm stumped as to what I might be missing.
>>>
>>>Anyone have any suggestions???
>>>
>>>TIA,
>>>~~Bonnie