C datagridview cellvalidating example

for the same row, I want to keep the checkbox column unchanged (it remains with its old value, for example if it was unchecked and user checks it, it will remain unchecked).

c datagridview cellvalidating example-54

Hovering the mouse pointer on the icon displays the Error Text that you set earlier.

The Data Grid View control of Windows Forms is a versatile control that can help you create professional-looking data entry forms.

If there are cells that you dont want to validate (eg read only cells) then add a check at the start of the event handler that will cause it to exit if it is trying to validate those cells.

For instance, if column with index 2 is read only and you dont want to validate cells in that column you could use: If you have attached an event handler to the Cell Validating event then it will always fire when focus leaves the cell.

2) Detach the event hander before the unwanted event triggers and re-attach after. so when i click the add button the cell validating event triggers i have posted the cell validating event do you know how to solve this thanxxx code!!!

Something there is causing the cell validating event to fire. [Edit] The validating event is firing because focus is being moved from the DGV to the button.

1) Add a conditional statement in the event handler code to only execute when required.

2) Detach the event hander before the unwanted event triggers and re-attach after.

This property returns the new value entered in the cell.

If it is less than five characters, you set the Error Text property of that cell to some error message.

It not only supports data binding but also provides frequently needed column types, such as combo box and button.

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