I have an Infragistics UltraGrid that is bound to an EntitySpaces entity collection via a binding source.
EntitySpaces entities support the IDataErrorInfo interface so that one can do validation either via a overriding a validate method in custom classes or by using an event handler. The problem I have is that the method or event handler is hammered. Moving the mouse cursor over a grid cell causes the validation method or event handler to be called numerous times not just when the data has been edited or is being edited. This is not particularly a good idea if one needs to validate cell contents via database calls. One could potentially issue database calls hundreds of times when only once should be necessary. The response form Infragistics is You might want to try caching the result of the validation in your IDataErrorInfo implementation. The grid has to call the validation method whenever it repaints a cell because something might have changed to make that cell no longer valid. Is there any way of using a binding source to do something like this. Regards Peter Maddin Applications Development Officer PathWest Laboratory Medicine WA Phone : +618 9473 3944 Fax : +618 9473 3982 E-Mail : peter.mad...@pathwest.wa.gov.au The contents of this e-mail transmission outside of the WAGHS network are intended solely for the named recipient's), may be confidential, and may be privileged or otherwise protected from disclosure in the public interest. The use, reproduction, disclosure or distribution of the contents of this e-mail transmission by any person other than the named recipient(s) is prohibited. If you are not a named recipient please notify the sender immediately.
