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WinForms: guide with DataGridView Cell Formatting Not Persisting on Scroll

👀 Views: 0 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-18
winforms datagridview cellformatting C#

I've looked through the documentation and I'm still confused about I'm working on a personal project and I'm working with an scenario with a `DataGridView` in my WinForms application where the cell formatting is being reset when I scroll through the rows... I have a `DataGridView` that displays a list of orders, and I'm applying conditional formatting to highlight cells based on their status. For example, if an order is canceled, I want the entire row to be highlighted in red. I have implemented this using the `CellFormatting` event, but when I scroll down, the formatting doesn't continue as expected. Instead, the cells revert to their original format. Here's the code for the `CellFormatting` event handler: ```csharp private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e) { if (dataGridView1.Columns[e.ColumnIndex].Name == "Status") { if (e.Value != null && e.Value.ToString() == "Canceled") { e.CellStyle.BackColor = Color.Red; e.CellStyle.ForeColor = Color.White; } } } ``` I've also tried setting `VirtualMode` to true and handling the `CellValueNeeded` event, but the scenario continues. It seems to be a rendering question where the cell styles aren't being reapplied when the grid repopulates as I scroll. I've looked into potential solutions such as overriding the `OnCellFormatting` method, but I'm not sure how to implement that. Could someone provide insight on how to properly maintain cell formatting during scrolling? Is there a best practice for handling such scenarios in WinForms, or do I need to adjust my approach to data binding or event handling? My development environment is Windows. This is my first time working with C# stable. Any pointers in the right direction?