DataColumnChangeEventArgs.cs

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namespace System.Data;
 
public class DataColumnChangeEventArgs : EventArgs
{
    private DataColumn _column;
 
    public DataColumn? Column => _column;
 
    public DataRow Row { get; }
 
    public object? ProposedValue { get; set; }
 
    internal DataColumnChangeEventArgs(DataRow row)
    {
        Row = row;
    }
 
    public DataColumnChangeEventArgs(DataRow row, DataColumn? column, object? value)
    {
        Row = row;
        _column = column;
        ProposedValue = value;
    }
 
    internal void InitializeColumnChangeEvent(DataColumn column, object value)
    {
        _column = column;
        ProposedValue = value;
    }
}