Goal for this part
Bind the cell matrix to a DataGrid.
Treat 05-Grid-View as the source of truth for this checkpoint. If your local tree drifted, re-clone that folder rather than mixing files from neighbors.
What you should already know
You do not need prior WPF experience for part 1. Later parts assume you finished the earlier snapshots on the same machine.
- .NET 8 SDK is installed
- You can run
dotnetfrom a terminal - WPF snapshots target Windows
Why WPF fits Gridlane
WPF’s DataGrid is a natural teaching surface for cells, formulas-lite, and clipboard paste—without building a full Excel clone.
Bind a 2D cell model to the grid. Keep parsing and file I/O out of code-behind event handlers as the sheet grows.
After you run the snapshot, you should recognize the behavior described in the goal—before you move on. If the window (or server) never appears, stop and fix the run steps.
Code shape
Snapshots stay small on purpose. Look for this kind of core call as you read the folder:
File.WriteAllLines(path, rows.Select(r => string.Join(",", r)));How to run it
Clone the teaching repo, open 05-Grid-View, install what the README asks for, then run dotnet run.
git clone https://github.com/michaeldunga1/fcc-wpf-spreadsheet.git
cd fcc-wpf-spreadsheet/05-Grid-View
dotnet restore
dotnet build
dotnet runCommon mistakes
- Ignoring platform-specific install notes in the snapshot README
- Binding the wrong field to the list/table column
- Refreshing the view before the query finishes
- Assuming sample rows exist when you deleted the local DB file