WinForms: DataGridView implementation guide After Editing Cell Value Using CellValidating Event
I'm a bit lost with I'm working on a personal project and Hey everyone, I'm running into an issue that's driving me crazy. I'm stuck trying to I'm having trouble with I'm sure I'm missing something obvious here, but I'm working on a WinForms application using .NET Framework 4.8, and I've encountered an scenario with a DataGridView not reflecting changes after editing a cell value... I have implemented the `CellValidating` event to validate user inputs, but it seems that the changes made in the cell are not being committed properly. When I edit a cell and attempt to leave it, the validation logic runs, but if it fails, the cell does not update to reflect the new value. Here’s the code I have for the `CellValidating` event: ```csharp private void dataGridView1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e) { if (e.ColumnIndex == 1) // Assuming the second column needs validation { if (string.IsNullOrWhiteSpace(e.FormattedValue.ToString())) { dataGridView1.Rows[e.RowIndex].ErrorText = "This field want to be empty!"; e.Cancel = true; } else { dataGridView1.Rows[e.RowIndex].ErrorText = string.Empty; } } } ``` Despite the validation logic working correctly, if the value is valid but I try to set it back to an empty string, the DataGridView does not update, and the previous value remains, which is not the expected behavior. I’ve tried calling `CommitEdit(DataGridViewDataErrorContexts.Commit)` after validation succeeds, but that doesn't seem to help. I also checked if `EndEdit()` was called on the DataGridView, but it appears to be skipped if the validation fails. Does anyone know how to ensure that the DataGridView updates properly even after a successful edit? It's particularly frustrating as I want to allow users to edit and validate inputs without losing their changes. This is part of a larger CLI tool I'm building. I recently upgraded to C# 3.10. I'm developing on macOS with C#. Thanks in advance! This is my first time working with C# stable. Thanks, I really appreciate it! My team is using C# for this service. My development environment is Debian. Thanks for any help you can provide!