DataGridView列标头带数据筛选功能(含C#源码DEMO)

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<CustomerID>TOMSP</CustomerID> <OrderDate>1996-07-05T00:00:00-07:00</OrderDate> <OrderTotal>1707.61</OrderTotal> <ShipCity>Münster</ShipCity> <ShipCountryRegion>Germany</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>HANAR</CustomerID> <OrderDate>1996-07-08T00:00:00-07:00</OrderDate> <OrderTotal>142.83</OrderTotal> <ShipCity>Rio de Janeiro</ShipCity> <ShipRegion>RJ</ShipRegion> <ShipCountryRegion>Brazil</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>HANAR</CustomerID> <OrderDate>1996-07-08T00:00:00-07:00</OrderDate> <OrderTotal>1327.23</OrderTotal> <ShipCity>Rio de Janeiro</ShipCity> <ShipRegion>RJ</ShipRegion> <ShipCountryRegion>Brazil</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>HANAR</CustomerID> <OrderDate>1996-07-08T00:00:00-07:00</OrderDate> <OrderTotal>280.03</OrderTotal> <ShipCity>Rio de Janeiro</ShipCity> <ShipRegion>RJ</ShipRegion> <ShipCountryRegion>Brazil</ShipCountryRegion> </CustomerOrderData> 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<OrderDate>1996-07-09T00:00:00-07:00</OrderDate> <OrderTotal>98.8</OrderTotal> <ShipCity>Charleroi</ShipCity> <ShipCountryRegion>Belgium</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>SUPRD</CustomerID> <OrderDate>1996-07-09T00:00:00-07:00</OrderDate> <OrderTotal>1139.3</OrderTotal> <ShipCity>Charleroi</ShipCity> <ShipCountryRegion>Belgium</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>HANAR</CustomerID> <OrderDate>1996-07-10T00:00:00-07:00</OrderDate> <OrderTotal>258.17</OrderTotal> <ShipCity>Rio de Janeiro</ShipCity> <ShipRegion>RJ</ShipRegion> <ShipCountryRegion>Brazil</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>HANAR</CustomerID> <OrderDate>1996-07-10T00:00:00-07:00</OrderDate> <OrderTotal>662.97</OrderTotal> <ShipCity>Rio de Janeiro</ShipCity> <ShipRegion>RJ</ShipRegion> <ShipCountryRegion>Brazil</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>HANAR</CustomerID> <OrderDate>1996-07-10T00:00:00-07:00</OrderDate> <OrderTotal>698.17</OrderTotal> <ShipCity>Rio de Janeiro</ShipCity> <ShipRegion>RJ</ShipRegion> <ShipCountryRegion>Brazil</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>CHOPS</CustomerID> <OrderDate>1996-07-11T00:00:00-07:00</OrderDate> <OrderTotal>68.88</OrderTotal> <ShipCity>Bern</ShipCity> <ShipCountryRegion>Switzerland</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>CHOPS</CustomerID> <OrderDate>1996-07-11T00:00:00-07:00</OrderDate> <OrderTotal>365.7</OrderTotal> <ShipCity>Bern</ShipCity> <ShipCountryRegion>Switzerland</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>CHOPS</CustomerID> <OrderDate>1996-07-11T00:00:00-07:00</OrderDate> <OrderTotal>190.98</OrderTotal> <ShipCity>Bern</ShipCity> <ShipCountryRegion>Switzerland</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>RICSU</CustomerID> <OrderDate>1996-07-12T00:00:00-07:00</OrderDate> <OrderTotal>452.33</OrderTotal> <ShipCity>Genève</ShipCity> <ShipCountryRegion>Switzerland</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>RICSU</CustomerID> <OrderDate>1996-07-12T00:00:00-07:00</OrderDate> <OrderTotal>634.83</OrderTotal> <ShipCity>Genève</ShipCity> <ShipCountryRegion>Switzerland</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>RICSU</CustomerID> <OrderDate>1996-07-12T00:00:00-07:00</OrderDate> <OrderTotal>528.33</OrderTotal> <ShipCity>Genève</ShipCity> <ShipCountryRegion>Switzerland</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>RICSU</CustomerID> <OrderDate>1996-07-12T00:00:00-07:00</OrderDate> <OrderTotal>1468.33</OrderTotal> <ShipCity>Genève</ShipCity> <ShipCountryRegion>Switzerland</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>WELLI</CustomerID> <OrderDate>1996-07-15T00:00:00-07:00</OrderDate> <OrderTotal>406.97</OrderTotal> <ShipCity>Resende</ShipCity> <ShipRegion>SP</ShipRegion> <ShipCountryRegion>Brazil</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>WELLI</CustomerID> <OrderDate>1996-07-15T00:00:00-07:00</OrderDate> <OrderTotal>138.77</OrderTotal> <ShipCity>Resende</ShipCity> <ShipRegion>SP</ShipRegion> <ShipCountryRegion>Brazil</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>HILAA</CustomerID> <OrderDate>1996-07-16T00:00:00-07:00</OrderDate> <OrderTotal>959.41</OrderTotal> <ShipCity>San Cristóbal</ShipCity> <ShipRegion>Táchira</ShipRegion> <ShipCountryRegion>Venezuela</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>HILAA</CustomerID> <OrderDate>1996-07-16T00:00:00-07:00</OrderDate> <OrderTotal>168.31</OrderTotal> <ShipCity>San Cristóbal</ShipCity> <ShipRegion>Táchira</ShipRegion> <ShipCountryRegion>Venezuela</ShipCountryRegion> </CustomerOrderData> <CustomerOrderData> <CustomerID>HILAA</CustomerID> <OrderDate>1996-07-16T00:00:00-07:00</OrderDate> <OrderTotal>237.91</OrderTotal> <ShipCity>San Cristóbal</ShipCity> <ShipRegion>Táchira</ShipRegion> <ShipCountryRegion>Venezuel