我正在尝试使用MVC3＆amp; amp;来实现级联下拉列表的方案。 Knockout JS。
示例场景：下面是html表有第二列和第三列作为下拉列表，想要以级联样式实现它，就像应该根据表下拉选择填充列下拉列表。
ColumnName Table-DropDown Column-DropDown DefaultValue
Test1 Table1 Table1-Columns ‘’
Test2 Table2 Table2-Columns ‘’
得到一个例子http://knockoutjs.com/examples/cartEditor.html 但无法获得包含所有JSON数据的完整代码，因此无法弄清楚如何实现这一点，对此非常感谢。
答案 0 :(得分：1)
如果您只是想了解购物车示例，那么它将从资源文件中获取其数据：
http://knockoutjs.com/examples/resources/sampleProductCategories.js
这可以帮助您了解一切是如何工作的，然后您可以进行调整，使其符合您的表名/列名方案。
为了完整性，这是文件的内容。
// Some of the Knockout examples use this data
var sampleProductCategories = [
{
"products": [
{
"name": "1948 Porsche 356-A Roadster",
"price": 53.9
},
{
"name": "1948 Porsche Type 356 Roadster",
"price": 62.16
},
{
"name": "1949 Jaguar XK 120",
"price": 47.25
},
{
"name": "1952 Alpine Renault 1300",
"price": 98.58
},
{
"name": "1952 Citroen-15CV",
"price": 72.82
},
{
"name": "1956 Porsche 356A Coupe",
"price": 98.3
},
{
"name": "1957 Corvette Convertible",
"price": 69.93
},
{
"name": "1957 Ford Thunderbird",
"price": 34.21
},
{
"name": "1958 Chevy Corvette Limited Edition",
"price": 15.91
},
{
"name": "1961 Chevrolet Impala",
"price": 32.33
},
{
"name": "1962 LanciaA Delta 16V",
"price": 103.42
},
{
"name": "1965 Aston Martin DB5",
"price": 65.96
},
{
"name": "1966 Shelby Cobra 427 S/C",
"price": 29.18
},
{
"name": "1968 Dodge Charger",
"price": 75.16
},
{
"name": "1968 Ford Mustang",
"price": 95.34
},
{
"name": "1969 Chevrolet Camaro Z28",
"price": 50.51
},
{
"name": "1969 Corvair Monza",
"price": 89.14
},
{
"name": "1969 Dodge Charger",
"price": 58.73
},
{
"name": "1969 Dodge Super Bee",
"price": 49.05
},
{
"name": "1969 Ford Falcon",
"price": 83.05
},
{
"name": "1970 Chevy Chevelle SS 454",
"price": 49.24
},
{
"name": "1970 Dodge Coronet",
"price": 32.37
},
{
"name": "1970 Plymouth Hemi Cuda",
"price": 31.92
},
{
"name": "1970 Triumph Spitfire",
"price": 91.92
},
{
"name": "1971 Alpine Renault 1600s",
"price": 38.58
},
{
"name": "1972 Alfa Romeo GTA",
"price": 85.68
},
{
"name": "1976 Ford Gran Torino",
"price": 73.49
},
{
"name": "1982 Camaro Z28",
"price": 46.53
},
{
"name": "1982 Lamborghini Diablo",
"price": 16.24
},
{
"name": "1985 Toyota Supra",
"price": 57.01
},
{
"name": "1992 Ferrari 360 Spider red",
"price": 77.9
},
{
"name": "1992 Porsche Cayenne Turbo Silver",
"price": 69.78
},
{
"name": "1993 Mazda RX-7",
"price": 83.51
},
{
"name": "1995 Honda Civic",
"price": 93.89
},
{
"name": "1998 Chrysler Plymouth Prowler",
"price": 101.51
},
{
"name": "1999 Indy 500 Monte Carlo SS",
"price": 56.76
},
{
"name": "2001 Ferrari Enzo",
"price": 95.59
},
{
"name": "2002 Chevy Corvette",
"price": 62.11
}
],
"name": "Classic Cars"
},
{
"products": [
{
"name": "1936 Harley Davidson El Knucklehead",
"price": 24.23
},
{
"name": "1957 Vespa GS150",
"price": 32.95
},
{
"name": "1960 BSA Gold Star DBD34",
"price": 37.32
},
{
"name": "1969 Harley Davidson Ultimate Chopper",
"price": 48.81
},
{
"name": "1974 Ducati 350 Mk3 Desmo",
"price": 56.13
},
{
"name": "1982 Ducati 900 Monster",
"price": 47.1
},
{
"name": "1982 Ducati 996 R",
"price": 24.14
},
{
"name": "1996 Moto Guzzi 1100i",
"price": 68.99
},
{
"name": "1997 BMW F650 ST",
"price": 66.92
},
{
"name": "1997 BMW R 1100 S",
"price": 60.86
},
{
"name": "2002 Suzuki XREO",
"price": 66.27
},
{
"name": "2002 Yamaha YZR M1",
"price": 34.17
},
{
"name": "2003 Harley-Davidson Eagle Drag Bike",
"price": 91.02
}
],
"name": "Motorcycles"
},
{
"products": [
{
"name": "1900s Vintage Bi-Plane",
"price": 34.25
},
{
"name": "1900s Vintage Tri-Plane",
"price": 36.23
},
{
"name": "1928 British Royal Navy Airplane",
"price": 66.74
},
{
"name": "1980s Black Hawk Helicopter",
"price": 77.27
},
{
"name": "ATA: B757-300",
"price": 59.33
},
{
"name": "America West Airlines B757-200",
"price": 68.8
},
{
"name": "American Airlines: B767-300",
"price": 51.15
},
{
"name": "American Airlines: MD-11S",
"price": 36.27
},
{
"name": "Boeing X-32A JSF",
"price": 32.77
},
{
"name": "Corsair F4U ( Bird Cage)",
"price": 29.34
},
{
"name": "F/A 18 Hornet 1/72",
"price": 54.4
},
{
"name": "P-51-D Mustang",
"price": 49.0
}
],
"name": "Planes"
},
{
"products": [
{
"name": "18th century schooner",
"price": 82.34
},
{
"name": "1999 Yamaha Speed Boat",
"price": 51.61
},
{
"name": "HMS Bounty",
"price": 39.83
},
{
"name": "Pont Yacht",
"price": 33.3
},
{
"name": "The Mayflower",
"price": 43.3
},
{
"name": "The Queen Mary",
"price": 53.63
},
{
"name": "The Schooner Bluenose",
"price": 34.0
},
{
"name": "The Titanic",
"price": 51.09
},
{
"name": "The USS Constitution Ship",
"price": 33.97
}
],
"name": "Ships"
},
{
"products": [
{
"name": "1950's Chicago Surface Lines Streetcar",
"price": 26.72
},
{
"name": "1962 City of Detroit Streetcar",
"price": 37.49
},
{
"name": "Collectable Wooden Train",
"price": 67.56
}
],
"name": "Trains"
},
{
"products": [
{
"name": "1926 Ford Fire Engine",
"price": 24.92
},
{
"name": "1940 Ford Pickup Truck",
"price": 58.33
},
{
"name": "1940s Ford truck",
"price": 84.76
},
{
"name": "1954 Greyhound Scenicruiser",
"price": 25.98
},
{
"name": "1957 Chevy Pickup",
"price": 55.7
},
{
"name": "1958 Setra Bus",
"price": 77.9
},
{
"name": "1962 Volkswagen Microbus",
"price": 61.34
},
{
"name": "1964 Mercedes Tour Bus",
"price": 74.86
},
{
"name": "1980’s GM Manhattan Express",
"price": 53.93
},
{
"name": "1996 Peterbilt 379 Stake Bed with Outrigger",
"price": 33.61
},
{
"name": "Diamond T620 Semi-Skirted Tanker",
"price": 68.29
}
],
"name": "Trucks and Buses"
},
{
"products": [
{
"name": "18th Century Vintage Horse Carriage",
"price": 60.74
},
{
"name": "1903 Ford Model A",
"price": 68.3
},
{
"name": "1904 Buick Runabout",
"price": 52.66
},
{
"name": "1911 Ford Town Car",
"price": 33.3
},
{
"name": "1912 Ford Model T Delivery Wagon",
"price": 46.91
},
{
"name": "1913 Ford Model T Speedster",
"price": 60.78
},
{
"name": "1917 Grand Touring Sedan",
"price": 86.7
},
{
"name": "1917 Maxwell Touring Car",
"price": 57.54
},
{
"name": "1928 Ford Phaeton Deluxe",
"price": 33.02
},
{
"name": "1928 Mercedes-Benz SSK",
"price": 72.56
},
{
"name": "1930 Buick Marquette Phaeton",
"price": 27.06
},
{
"name": "1932 Alfa Romeo 8C2300 Spider Sport",
"price": 43.26
},
{
"name": "1932 Model A Ford J-Coupe",
"price": 58.48
},
{
"name": "1934 Ford V8 Coupe",
"price": 34.35
},
{
"name": "1936 Chrysler Airflow",
"price": 57.46
},
{
"name": "1936 Mercedes Benz 500k Roadster",
"price": 21.75
},
{
"name": "1936 Mercedes-Benz 500K Special Roadster",
"price": 24.26
},
{
"name": "1937 Horch 930V Limousine",
"price": 26.3
},
{
"name": "1937 Lincoln Berline",
"price": 60.62
},
{
"name": "1938 Cadillac V-16 Presidential Limousine",
"price": 20.61
},
{
"name": "1939 Cadillac Limousine",
"price": 23.14
},
{
"name": "1939 Chevrolet Deluxe Coupe",
"price": 22.57
},
{
"name": "1940 Ford Delivery Sedan",
"price": 48.64
},
{
"name": "1941 Chevrolet Special Deluxe Cabriolet",
"price": 64.58
}
],
"name": "Vintage Cars"
}
];