StrataFrame Forum » StrataFrame Application Framework - V1 » Business Objects and Data Access (How do I?) » has field value changed... ?

has field value changed... ?

Philipp Guntermann — Mon, 09 Mar 2009 08:58:35 GMT

hi, i am overriding the onbeforesave event on a bo and i need to check that if in editing-mode, wether a value of a specific field was changed by the user or not. like:

[codesnippet]
protected override void OnBeforeSave(MicroFour.StrataFrame.Data.BeforeSaveUndoEventArgs e)
{
    if (this.EditingState == BusinessEditingState.Adding)
    {
        if (this.custno.hasChanged)
         {
              // do something
         }
         else
         {
              // do something else
         }
    }
    base.OnBeforeSave(e);
}
[/codesnippet]

any ideas ? thanks.

RE: has field value changed... ?

Philipp Guntermann — Mon, 09 Mar 2009 08:58:35 GMT

thanks, will have a closer look :)

RE: has field value changed... ?

Trent L. Taylor — Mon, 09 Mar 2009 08:34:27 GMT

Actually it will. Look at this:

[codesnippet]MyBO.CurrentRow(MyColumnName,Version)[/codesnippet]

RE: has field value changed... ?

Philipp Guntermann — Mon, 09 Mar 2009 08:18:31 GMT

hi,

ok, i can use isdirty instead of editingstate.editing, but that still wouldnt tell me wether the specific field has changed. at that point all i know is that at least 1 field changed. any ideas on that ?

thanks.

RE: has field value changed... ?

Trent L. Taylor — Mon, 09 Mar 2009 07:48:25 GMT

Well, you could do several things. I would not use the editing state since this is not always going to reflect a data change. I would use the IsDirty property or the state of the current row.

[codesnippet]If MyBo.IsDirty Then[/codesnippet]

[codesnippet]If MyBo.CurrentRow.RowState = DataRowState.Modified Then[/codesnippet]

RE: has field value changed... ?

Philipp Guntermann — Mon, 09 Mar 2009 06:24:05 GMT

should read BusinessEditingState.Editing instead of BusinessEditingState.Adding