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 handle the validation in the Cell Validating event, and if the cell is invalid display an error message, then cancel the exit of edit mode.
However I would also like to erase the content of the cell currently in edit mode.
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.
Hi, How to validate user entry to cell in Grid View and replace the cell value on the other column?
Ex : i have a gridview with 2 columns (A & B), on both columns i change it to Template Field (Text Box). Row Index) Dim row As Grid View Row = Grid View Edit Invoice.In this walkthrough, you will retrieve rows from the column and tries to leave the cell, the Cell Validating event handler will examine new company name string to make sure it is not empty; if the new value is an empty string, the Data Grid View will prevent the user's cursor from leaving the cell until a non-empty string is entered.To copy the code in this topic as a single listing, see How to: Validate Data in the Windows Forms Data Grid View Control.The Data Bound Item will be updated only if the cell is validated.However, the user may prefer to validate all the data cells in a row at once.Let's assume that the If the user enters empty string for a specific cell and tries to navigate to another row, the validation fails and the Error Text is displayed on the corresponding row.