Convert DataTable to ObservableCollection (Without specific class) [duplicate]

问题

I would like convert DataTable in ObservableCollection without having a specific class in my solution. (All others solution in stackoverflow.com is with specific class.)

The reason is that the DataTable represent a Stored Procedure Result, and in the future I would like change the Stored Procedure result without any change in the application.

I can't bind directly my DataBale because I use Filter on my ModelView side, and I have an exception if I use DataTable and Filter together.

Any idea ?

Thanks

The goal îs to have the same code, but without BO.Line object.

    static public ObservableCollection<BO.Line> GetValues()
    {

        DataTable _dataTable = DAL.ExecuteStoredProcedure(GetStoredProcedureNameInAppConfig());

        ObservableCollection<BO.Line> _list = new ObservableCollection<BO.Line>();

        foreach (DataRow _dataRow in _dataTable.Rows)
        {
            _list.Add(new BO.Line() { Instrument = _dataRow["Instrument"].ToString(), 
                                      Crystal = _dataRow["Crystal"].ToString() });
        }

        return _list;
    }

In this sample:

GetStoredProcedureNameInAppConfig() //return "GetLines"

but i would like change in my App.config (without recompile my application):

GetStoredProcedureNameInAppConfig() //return "GetPerson"

"GetLines" Stored Procedue return:

Instrument | Crystal
______________________
Instr1     | Crystal1
Instr1     | Crystal2
Instr2     | Crystal1

"GetPerson" Stored Procedue return:

FirstName | LastName | Language
_______________________________
Alex      | Doe      | ENG
Britt     | Nillis   | ENG
Carlo     | Petro    | FR

Resume
I would like convert DataTable (with variable structure) in "generic" ObservableCollection. Witout specific class.
(ObservableCollection isn't good solution for me.)

Thank you

回答1:

This solution work with WPF Binding and Filter.

Thank you to http://paulstovell.com/

public class GenericObject
{

    private readonly ObservableCollection<GenericProperty> properties = new ObservableCollection<GenericProperty>();

    public GenericObject(params GenericProperty[] properties)
    {
        foreach (var property in properties)
            Properties.Add(property);
    }

    public ObservableCollection<GenericProperty> Properties
    {
        get { return properties; }
    }

}

public class GenericProperty : INotifyPropertyChanged
{
    public GenericProperty(string name, object value)
    {
        Name = name;
        Value = value;
    }

    public string Name { get; private set; }
    public object Value { get; set; }


    public event PropertyChangedEventHandler PropertyChanged;
}

private static ObservableCollection<GenericObject> Convert(DataTable toConvert)
{
    ObservableCollection<GenericObject> _result = new ObservableCollection<GenericObject>();

    foreach (DataRow _row in toConvert.Rows)
    {
        GenericObject _genericObject = new GenericObject();
        foreach (DataColumn _column in toConvert.Columns)
        {
            _genericObject.Properties.Add(new GenericProperty(_column.ColumnName,_row[_column]));
        }
        _result.Add(_genericObject);
    }

    return _result;
}

Thank you all for your help.

来源：https://stackoverflow.com/questions/27489000/convert-datatable-to-observablecollection-without-specific-class

标签

wpf

datatable

observablecollection