Datagridview onvalidating

Optionally, invalidates the child controls assigned to the control.(Inherited from Control.) This API supports the product infrastructure and is not intended to be used directly from your code.Adjusts the height of the column headers based on changes to the contents of the header in the specified column, optionally calculating the height with the expectation that the column and/or row header widths will subsequently be adjusted.The Data Grid View class provides a convenient way to perform validation before data is committed to the data store.You can validate data by handling the Cell Validating event, which is raised by the Data Grid View when the current cell changes.I'm overriding the On Validating event in a custom Winforms text box.I'm finding that if the text box (which is bound to an object) has focus and then I give a grid focus using the mouse, the On Validating event doesn't always get fired.When I first give the grid focus, it gets fired fine.

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When you display data entry functionality to users, you frequently have to validate the data entered into your form.

Gets a value indicating whether the caller must call an invoke method when making method calls to the control because the caller is on a different thread than the one the control was created on.(Inherited from Control.)Adjusts the height of the column headers based on changes to the contents of the header in the specified column, optionally calculating the height with the expectation that the column and/or row header widths will subsequently be adjusted.

Adjusts the width of the row headers based on changes to the contents of the header in the specified row and using the specified size mode, optionally calculating the width with the expectation that the row and/or column header widths will subsequently be adjusted.

If I change focus using the tab key, the validating always gets fired.

If I give focus to a non-grid control using the mouse, the validation is always getting fired.

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