👀 Views: 102 💬 Answers: 1 📅 Created: 2025-06-18

winforms datagridview event-handling C#

I'm testing a new approach and I'm wondering if anyone has experience with I'm relatively new to this, so bear with me........... I'm having trouble getting my WinForms application to dynamically update other controls when the value of a DataGridView cell changes. Specifically, I have a DataGridView that lists products, and I want to update a Label to show the price of a selected product as soon as the user selects a different row. Currently, I’m using the `CellClick` event to handle this, but it seems that the label is not updating properly when I click on different rows. Here's a simplified version of my code: ```csharp public partial class MainForm : Form { public MainForm() { InitializeComponent(); LoadData(); } private void LoadData() { var products = new List<Product> { new Product { Name = "Product A", Price = 10.00 }, new Product { Name = "Product B", Price = 20.00 }, new Product { Name = "Product C", Price = 30.00 } }; dataGridViewProducts.DataSource = products; } private void dataGridViewProducts_CellClick(object sender, DataGridViewCellEventArgs e) { if (e.RowIndex >= 0) { var selectedRow = dataGridViewProducts.Rows[e.RowIndex]; var price = selectedRow.Cells[1].Value; labelPrice.Text = $"Price: {price}"; } } } public class Product { public string Name { get; set; } public double Price { get; set; } } ``` Despite having the correct event hooked up, the label doesn't update when I select a new row; it simply retains the value from the previous selection. I have tried refreshing the DataGridView and also explicitly calling `labelPrice.Refresh()`, but that didn't make any difference. I am using .NET Framework 4.8 and Visual Studio 2019. Could there be an issue with how I’m accessing the cell values, or is there a better event I should be using to get this dynamic behavior? I would really appreciate any insights or suggestions. I'm working on a CLI tool that needs to handle this. Has anyone else encountered this? I'm developing on Linux with C#. I'm using C# LTS in this project. Any ideas what could be causing this? I'm on Windows 11 using the latest version of C#. Any advice would be much appreciated. I'm working on a web app that needs to handle this. Is this even possible? Hoping someone can shed some light on this.