How to update WinForms GridGroupingControl when value change in DataSource?

3 mins read

Update the grid

By default, the cell values in the grid will be updated when the values in the underlying datasource is changed. In case, the grid is bound to the object collection or Entity framework, the property changes have to be notified to grid. This can be achieved by implementing the INotifyPropertyChanged interface to the class.

/// <summary>
/// Summary description for Data with INotifyPropertyChanged interface
/// </summary>
public class Data : INotifyPropertyChanged
{
    public Data()
    {
    }

    public Data(double cat_Id, string cat_Name, string desc, string sample_Data)
    {
        this.cat_Id = cat_Id;
        this.cat_Name = cat_Name;
        this.desc = desc;
        this.sample_Data = sample_Data;
    }
    
    private double cat_Id;
    
    public double CategoryID
    {
        get
        {
            return this.cat_Id;
        }
        set
        {
            this.cat_Id = value;
            OnPropertyChanged("CategoryID");
        }
    }

    //INotifyPropertyChanged member
    public event PropertyChangedEventHandler PropertyChanged;
    
    /// <summary>
    /// Raise the event when property value changed.
    /// </summary>
    /// <param name="Name">Property name</param>
    public void OnPropertyChanged(String Name)
    {
        if (this.PropertyChanged != null)
        {
            PropertyChanged(this, new PropertyChangedEventArgs(Name));
        }
    }
}

''' <summary>
''' Summary description for Data with INotifyPropertyChanged interface
''' </summary>
Public Class Data
    Implements INotifyPropertyChanged

    Public Sub New()
    End Sub

    Public Sub New(ByVal cat_Id As Double, ByVal cat_Name As String, ByVal desc As String, ByVal sample_Data As String)
        Me.cat_Id = cat_Id
        Me.cat_Name = cat_Name
        Me.desc = desc
        Me.sample_Data = sample_Data
    End Sub

    Private cat_Id As Double

    Public Property CategoryID() As Double
        Get
            Return Me.cat_Id
        End Get
        Set(ByVal value As Double)
            Me.cat_Id = value
            OnPropertyChanged("CategoryID")
        End Set
    End Property

    'INotifyPropertyChanged member
    Public Event PropertyChanged As PropertyChangedEventHandler

    ''' <summary>
    ''' Raise the event when property value changed.
    ''' </summary>
    ''' <param name="Name">Property name</param>
    Public Sub OnPropertyChanged(ByVal Name As String)
        RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(Name))
    End Sub
End Class

Samples:

C#: INotifyPropertyChanged

VB: INotifyPropertyChanged

Conclusion

I hope you enjoyed learning about how to update WinForms GridGroupingControl when value change in datasource.

You can refer to our WinForms GridGroupingControl feature tour page to know about its other groundbreaking feature representations. You can also explore our WinForms GridGroupingControl documentation to understand how to create and manipulate data.

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How to update WinForms GridGroupingControl when value change in DataSource?

Update the grid

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