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Dataset does not support System.Nullable When groupHeaderSection1_ItemDataBinding

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prince chun
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prince chun asked on 13 Nov 2009, 03:48 AM

 

private void groupHeaderSection1_ItemDataBinding(object sender, EventArgs e)

 

{

 

if (_openingFuelBalance != null && _closingFuelBalance != null)

 

{

Telerik.Reporting.Processing.

GroupSection section = sender as Telerik.Reporting.Processing.GroupSection;
***************************************************************************

 

 

DataRowView row = section.DataItem as DataRowView;

 

 

********************************************************************************
object
val = row.Row["PrimeMover"];

 

_openingFuelBalance =

blFuelBalance.ListRecordOpening(val.ToInt(), strDateFrom, strDateTo);

 

_closingFuelBalance =

blFuelBalance.ListRecordClosing(val.ToInt(), strDateFrom, strDateTo);

 

 

if (_openingFuelBalance != null && _closingFuelBalance != null)

 

{

txtBF.Value = _openingFuelBalance.LastOdometer.ToString();

}

 

else

 

{

txtBF.Value =

"0";

 

txtCheckDigit.Value =

"0";

 

txtTtlDiff.Value =

"0";

 

}

}

}



When I generate the Telerik Report, the row that I mark as Asterik (*) ,it come  out the error dataset does not support system.nullable. Can your all help me to solve this problem. Is it problem cause by linQ. I use Linq to retreive the data.Thank you very much for your all  help.

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