Windows Forms FAQ : How do I determine the DataGridTableStyle MappingN... : Syncfusion



	Questions and answers in this FAQ have been collected from newsgroup posts, various mailing lists and the employees of Syncfusion.

5.73 How do I determine the DataGridTableStyle MappingName that should used for a DataGrid to make sure the grid uses my tablestyle

The DataGrid looks for a DataGridTableStyle.MappingName that is the type name of its datasource. So, depending upon what datasource you are using, this may be "ArrayList" for a ArrayList, "MyCollection[]" for an array of MyCollection objects, or "MyTableName" for a datatable, or whatever.

Here is a code snippet provide by NoiseEHC on the microsoft.public.dotnet.framework.windowsforms.controls newsgroup that you can use to see exactly what mappingname is required for your datasource.

[C#]

//usage

ShowMappingName(dataGrid1.DataSource);

//implementation

void ShowMappingName(object src)

{

IList list = null;

Type type = null;

if(src is Array)

{

type = src.GetType();

list = src as IList;

}

else

{

if(src is IListSource)

src = (src as IListSource).GetList();

if(src is IList)

{

type = src.GetType();

list = src as IList;

}

else

{

MessageBox.Show("error");

return;

}

if(list is ITypedList)

MessageBox.Show((list as ITypedList).GetListName(null));

else

MessageBox.Show(type.Name);

}

[VB.NET]

Private Sub ShowMappingName(ByVal src As Object)

Dim list As IList = Nothing

Dim t As Type = Nothing

If TypeOf (src) Is Array Then

t = src.GetType()

list = CType(src, IList)

Else

If TypeOf src Is IListSource Then

src = CType(src, IListSource).GetList()

End If

If TypeOf src Is IList Then

t = src.GetType()

list = CType(src, IList)

Else

MessageBox.Show("Error")

Return

End If

If TypeOf list Is ITypedList Then

MessageBox.Show(CType(list, ITypedList).GetListName(Nothing))

Else

MessageBox.Show(t.Name)

End If

End Sub

Windows Forms-Datagrid