中文版说明

Here is demo for book information to demonstrate the use of ReoGrid.Mvvm. The complete source code is in the project ReoGrid.Mvvm.Demo.

1. create a new WPF project.

2. insatll ReoGrid.Mvvm

Install-Package ReoGrid.Mvvm

3. create a book model

[WorksheetAttribute(Title = "Books")]
public class Book: IRecordModel
{
    [ColumnHeader(Index = 10, IsVisible = false)]
    public int Id { get; set; }

    [ColumnHeader(Index = 20, Text = "Name", Width = 150)]
    public string Title { get; set; }

    [ColumnHeader(Index = 30)]
    public string Author { get; set; }

    [ColumnHeader(Index = 35, Text = "Type")]
    public BindingType BindingType { get; set; }

    [ColumnHeader(Index = 36, Text = "OnSale")]
    public bool IsOnSale { get; set; }

    [NumberFormat(DecimalPlaces = 2)]
    [ColumnHeader(Index = 40)]
    public decimal Price { get; set; }

    [DateTimeFormat( CultureName = "en-US")]
    [ColumnHeader(Index = 45, Text = "Publish Date", Width = 200)]
    public DateTime Pubdate { get; set; }

    public int RowIndex { get; set; }
}

(1) Model must implement the interface IRecordModel.

IRecordModel has only one property RowIndex, You don't need to do anything with it.

(2) WorksheetAttribute is used to specify the worksheet name.

It's optional, class name would be set as the worksheet name if it's not set.

(3) in ColumnHeader Attribute, Index must be specified. others are optional.

(4) DateTimeFormat DateTimeFormat are not recommended for use for now.

These features are not well implemented in ReoGrid.OR I have some misunderstand.

4. in ViewModel file:

4.1 create two fields

private ObservableCollection<IRecordModel> _Books;
private WorksheetModel _WorksheetModel;

4.2 init them

_Books = new ObservableCollection<IRecordModel>();
for (int i = 0; i < 10; i++)
{
    Book book = new Book();
    book.Id = i;
    book.Title = string.Format("Title {0}", i);
    book.Author = string.Format("Author {0}", i);
    book.BindingType = BindingType.Hardback;
    book.IsOnSale = true;
    book.Price = (decimal)(i * 10.1);
    book.Pubdate = DateTime.Now;
    _Books.Add(book);
}
// reoGridControl is the ReoGridControl control instance
_WorksheetModel = new WorksheetModel(reoGridControl, typeof(Book), _Books);
//If you want to check the validity of the input variables, you can implement the function.
_WorksheetModel.OnBeforeChangeRecord += OnBeforeChangeRecord;

4.3 implement the OnBeforeChangeRecord

private bool? OnBeforeChangeRecord(IRecordModel record, PropertyInfo propertyInfo, object newValue)
{
    if (propertyInfo.Name.Equals("Price"))
    {
        decimal price = Convert.ToDecimal(newValue);
        if (price > 100m) //assume the max price is 100
        {
            MessageBox.Show("Max price is 100.", "Alert", MessageBoxButton.OK, MessageBoxImage.Warning);
            return true; // cancel the change
        }
    }
    return null;
}

4.4 add delete move or edit the model

// add a book
int count = _Books.Count;
Book book = new Book();
book.Id = count;
book.Title = string.Format("Title {0}", count);
book.Author = string.Format("Author {0}", count);
book.BindingType = BindingType.Hardback;
book.IsOnSale = true;
book.Price = (decimal)(count * 10.11) > 100m ? 100m :(decimal)(count * 10.11);
book.Pubdate = DateTime.Now;
_Books.Add(book);

// remove a book
if (_Books.Count > 0)
{
    _Books.RemoveAt(_Books.Count - 1);
}

// move a book
if (_Books.Count > 2)
{
    _Books.Move(0, _Books.Count - 1);
}

// edit a book
(_Books[0] as Book).Price = new Random(DateTime.Now.Millisecond).Next(1,100);
// invoke UpadteRecord after editing one record.
_WorksheetModel.UpadteRecord(_Books[0]);