' ' Check to see if the user input meets all of the business rules before ' we move on to another row. Data Grid View Cell Cancel Event Args) Handles _ Data Grid View1. Value The error checking discussed in the previous section may not detect "data integrity errors" (those errors where the input violates a database foreign key, unique, or primary key constraint).' Private Sub Data Grid View1_Row Validating(By Val sender As Object, By Val e As _ System. Row Validating ' Assume that text input is complete when you attempt to navigate ' away from the row Data Grid View1. In this case we're just checking to ' see if the Unit Price is a positive number If Data Grid View1. Luckily, the Data Grid View Combo Box Column control was designed to help solve this problem.
In your example, you use the Cell Validating event, as shown below: Here, you want to ensure that the length of the new Customer ID is at least five characters.
You do this by using the Formatted Value property of the Data Grid View Cell Validating Event Args parameter.
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The Kettic Data Grid View allows users of the control easily validate data grid cells when data is committed to the data source.
To validate data to grid cells and rows, we need to use the Validate Cell event, which will be raised by the Kettic Data Grid View when there are any changes to the current cell or when the grid cell loses input focus like.
The Data Grid View is a very powerful windows form control for providing a user interface to tabular data.
It has the initial "look and feel" of an Excel spreadsheet.
We are going through the following C# code to analyze the process of validating data in grid cell.