代码:Pivot.zip
数据****表提供的数据三维视图效果,在Microsoft Excel能创建数据****表,但是,它并不会总是很方便使用Excel。您可能希望在Web应用程序中创建一个数据****报表。创建一个简单的数据****表可能是一件非常复杂的任务。所以,我打算不但为你提供一个非常有用的工具创建简单和高级的数据****表,而且为你移除一些笼罩他们的神秘面纱。
目标是:我们想要有能力将datatable中的二维的数据转换成三维视图。
在大多数情况下,你会从数据库的查询数据填充数据表,例如
SELECT SalesPeople.FullName AS [Sales Person] , Products.FullName AS [Product] , SUM(Sales.SalesAmount) AS [Sale Amount] , SUM(Sales.Qty) AS [Quantity] FROM Sales JOIN SalesPeople WITH (NOLOCK) ON SalesPeople.SalesPersonID = Sales.SalesPersonID JOIN Products WITH (NOLOCK) ON Products.ProductCode = Sales.ProductCode GROUP BY SalesPeople.FullName , Products.FullName
该查询会产生下面的数据表:
Sales Person
|
Product
|
Quantity
|
Sale Amount
|
John
|
Pens
|
200
|
350
|
John
|
Pencils
|
400
|
500
|
John
|
Notebooks
|
100
|
300
|
John
|
Rulers
|
50
|
100
|
John
|
Calculators
|
120
|
1200
|
John
|
Back Packs
|
75
|
1500
|
Jane
|
Pens
|
225
|
393.75
|
Jane
|
Pencils
|
335
|
418.75
|
Jane
|
Notebooks
|
200
|
600
|
Jane
|
Rulers
|
75
|
150
|
Jane
|
Calculators
|
80
|
800
|
Jane
|
Back Packs
|
97
|
1940
|
Sally
|
Pens
|
202
|
353.5
|
Sally
|
Pencils
|
303
|
378.75
|
Sally
|
Notebooks
|
198
|
600
|
Sally
|
Rulers
|
98
|
594
|
Sally
|
Calculators
|
80
|
800
|
Sally
|
Back Packs
|
101
|
2020
|
Sarah
|
Pens
|
112
|
196
|
Sarah
|
Pencils
|
245
|
306.25
|
Sarah
|
Notebooks
|
198
|
594
|
Sarah
|
Rulers
|
50
|
100
|
Sarah
|
Calculators
|
66
|
660
|
Sarah
|
Back Packs
|
50
|
2020
|
|