Ref types in a datarow?

[William Stacey [MVP]]

Is there a way to get a ref to an object (say a instantiated class) in a
column of a datarow? Some other trick or workaround?

 

[Teemu Keiski]

Hmm, not sure what you mean, but if you create the DataTable yourself, you
can specify the column type to be some custom type. For example:

DataTable dt=new DataTable();
dt.Columns.Add("thePoint",typeof(Point));
DataRow dr=dt.NewRow();
Point pt=new Point(5,5);
dr[0]=pt;
dt.Rows.Add(dr);

--
Teemu Keiski
MCP, Designer/Developer
Mansoft tietotekniikka Oy
http://www.mansoft.fi

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Email:
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[Steven Bras [MS]]

Thanks for the post, Teemu; excellent answer!

Steven Bras, MCSD
Microsoft Developer Support/Visual Basic WebData

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[Teemu Keiski]

No problem.

Just note that for serializing to work (if you put DataTable with custom
type to DataSet) the type needs to be serializable as it normally would.

--
Teemu Keiski
MCP,Designer/Developer
Mansoft tietotekniikka Oy
http://www.mansoft.fi

ASP.NET Forums Moderator, www.asp.net
AspAlliance Columnist, www.aspalliance.com

Email:
(e-mail address removed)

Thanks Teemu. Guess I just should have tried it, but the doco just showed
the native types
ms-help://MS.VSCC.2003/MS.MSDNQTR.2003APR.1033/cpref/html/frlrfsystemdatadat
acolumnclassdatatypetopic.htm

Thanks again.

Hmm, not sure what you mean, but if you create the DataTable yourself, you
can specify the column type to be some custom type. For example:

DataTable dt=new DataTable();
dt.Columns.Add("thePoint",typeof(Point));
DataRow dr=dt.NewRow();
Point pt=new Point(5,5);
dr[0]=pt;
dt.Rows.Add(dr);

--
Teemu Keiski
MCP, Designer/Developer
Mansoft tietotekniikka Oy
http://www.mansoft.fi

ASP.NET Forums Moderator, www.asp.net
AspAlliance Columnist, www.aspalliance.com

Email:
(e-mail address removed)

Is there a way to get a ref to an object (say a instantiated class) in a
column of a datarow? Some other trick or workaround?