数据表“ TruckGrossWeight”运算符后缺少操作数

Question

I have a datatable where I want to assign select query. But following error pops up: "Syntax error: Missing operand after 'TruckGrossWeight' operator."

DataRow[] drs = dataTableForDropDowns
 .Select("LNGFuelAvailability=" + drpdwnlst_LNGFuelAvailability.SelectedValue + " " +
         "TruckGrossWeight=" + drpdwnlst_TruckGrossCombinedWeight.SelectedValue + "");

Value of Selected Values ( int ) are:

drpdwnlst_LNGFuelAvailability.SelectedValue= 5
drpdwnlst_TruckGrossCombinedWeight.SelectedValue = 2

Answer 1

try below

DataRow[] drs = dataTableForDropDowns.Select("LNGFuelAvailability = "+drpdwnlst_LNGFuelAvailability.SelectedValue+ " AND TruckGrossWeight = "+drpdwnlst_TruckGrossCombinedWeight.SelectedValue);

syntax should be like below

DataRow[] results = table.Select("A = foo AND B = bar");

or

DataRow[] results = table.Select("A = foo OR B = bar");