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Syntax error missing operand after isnull operator

But it will throw a runtime error in the case where we have a < Contact> that is missing a < YearsAtCompany> sub- element:. you can see the YearsAtCompany column for our third contact is empty as a result ( since the value is null) :. write Nullify( ) as an extension method for strings and then you should be set using the syntax you displayed:. You have a missing white- space at ' AND. So replace ' AND. Is size a string- column or an int- column? If it' s a string you need quotation marks around too: AND size = ' " + cboSize. or even better, use String. I am using a Rowfilter to query a datatable that has the following columns:. RowFilter = USER_ NAME = ' mike. sl' And USER_ ID = 2753 And USER_ CODE Is Null. However I am getting an exception which states : Missing operand before ' IS' operator. I searched lot of sites and have.

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    Operand missing syntax

    Please make sure that the UserCode_ ColumnName is not an empty string or null, as otherwise you' ll get a syntax error. You need to fill your DataTable first with some data and then you can filter results using ( SqlConnection sc = new SqlConnection( sConn) ) { sc. Open( ) ; using ( SqlDataAdapter adapter = new SqlDataAdapter( ) ) { adapter. You can' t SELECT data like that and I am pretty sure you cannot use the IN operator. It isn' t SQL SERVER, it' s most like MS ACCESS type syntax, but not exactly. share| improve this answer. answered Sep 17 ' 14 at 14: 28. Your problem is that " Emp Name" ( the column name) contains a space and needs to be wrapped in square brackets in the filter expression: strFilter= strFilter + " and [ Emp Name] = ' " + Session[ " SampleSession" ]. ToString( ) + " ' ". but I thinks it still include the time and gets me error " Syntax error: Missing operand after ' 12' operator. Please use a nullable type. Since the Field method supports nullable- types you can use it directly. try below DataRow[ ] drs = dataTableForDropDowns. Select( " LNGFuelAvailability = " + drpdwnlst_ LNGFuelAvailability. SelectedValue+ " AND TruckGrossWeight = " + drpdwnlst_ TruckGrossCombinedWeight.

    SelectedValue) ;. syntax should be like. This should work for you if type is integer: drClaimCPT = dtCpt. Select( " CLAIM_ NUMBER = " + claimNo + " " ) ;. for string: drClaimCPT = dtCpt. Select( " CLAIM_ NUMBER = ' " + claimNo + " ' " ) ;. private const int Expr = 2; / * The previous operand was a complex expression * /. private struct ReservedWords {. internal readonly. the following operator is not implemented in the current version of the. set error, syntax: missing operand.