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.We are going through the following C# code to analyze the process of validating data in grid cell.

datagridview validating event c-89

Datagridview validating event c video

Hi there, I have a question regarding datagridview, I add data to the datagridview in an interface and all the validation for the datagridview cell is in the datagridview cell validating event for the datagridview.

I display the data of the is datagridview in another interface and make the cells read-only. But the thing is when I click on a row that data was added previously and press the Add new row the cell validating event is triggered.

Before we validate data to grid cell, we need to cancel the Validate Cell event to prevent the users from exiting the cell until entering a valid editor value or cancelling the edit process.

Meanwhile, we can use the Validate Row event in the same way to prevent the user from exiting the current row.

Error Text = _ "A Track must be a number" Return False End If Return True End Function Private Function Is Date Good(By Ref cell As Data Grid View Cell) As Boolean If cell.

Error Text = _ "Missing date" Return False Else Try Date Time. Private Sub Validate By Row(By Val sender As Object, _ By Val data As Data Grid View Cell Cancel Event Args) _ Handles songs Data Grid View. Index) Dim date Cell As Data Grid View Cell = _ row. Row Validating Dim row As Data Grid View Row = _ songs Data Grid View. Row Index) Dim track Cell As Data Grid View Cell = _ row. Hi, I'm using the cellvalidating event on a datagridview. I can’t seem to get my Validate The Entry() function to return a 0 if the entry is either “” or NULL or string. I only need to validate certain columns in the datagrid, I don’t need to validate the EAN or the description for instance and yet the column index don’t seem to be logical?From within that event, you can indicate that the user's value is invalid by setting the Error Text value of the cell or row.