CODEWITHSUNDEEP
c#windowswinformsdatagridview
Nighil
Nighil

Reputation: 4129

Loop in CellValueChanged event in DataGridView

I am developing a billing application. The problem is that I want to increase the speed of billing to be as fast and smooth as possible so am using a DataGridView for this purpose.

Is there any example program using datagrid for billing?

Problem in my application

The problem is that when a product is selected and quantity is entered say 100 in stock sometimes 50 may be there in one batch, so I want to add 50 from other batch and I want to show the new as new record.

User will enter 100 in quantity column I want to cancel it and want to change it to 50 here is the problem when trying to change it looping occurs in CellValueChanged.

Since value of grid is changing in CellValueChanged event it will be called again how can I solve this or please give me some sample program links

Upvotes: 0

Views: 2539

Answers (1)

Jeff
Jeff

Reputation: 36573

The normal way I accomplish this is with a private class member variable called

bool suspendEventCellValueChanged;

And in my handler, only proceed to make modifications if suspendEventCellValueChanged == false. If I proceed, I set suspendEventCellValueChanged = true, so that I don't get caught in an infinite loop.

Upvotes: 2

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