如何使用linq VB.NET填充数据集, [英] How to fill dataset using linq VB.NET,

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问题描述



我想用linq对象填充数据集到示例在Microsoft的网站中:



example



'填写数据集。 
Dim ds As New DataSet()
ds.Locale = CultureInfo.InvariantCulture
'请参阅将数据加载到DataSet主题中的FillDataSet方法。
FillDataSet(ds)

Dim products As DataTable = ds.Tables(Product)

Dim query = From product in products inAsEnumerable()_
选择product.Field(Of String)(Name)

Console.WriteLine(Product Names:)
For each productName in query
Console.WriteLine (productName)
下一步





FillDataSet(ds)没有实现源代码?应该是什么代码?







如何填充数据集因为所有的例子都是FillDataSet没有在linq中实现这个方法?

解决方案

 ' 填充DataSet。 
Dim ds As New DataSet()
ds.Locale = CultureInfo.InvariantCulture
'
请参阅中的FillDataSet方法将数据加载到DataSet主题中。
FillDataSet(ds)

Dim products As DataTable = ds.Tables( 产品

Dim query = From product In products.AsEnumerable()_
选择产品
Console.WriteLine( 产品名称:
For Each p In query
Console.WriteLine(p.Field(Of 字符串)( 名称))
下一步


您好,



您需要查看以下链接,这将有助于您了解相同的实现。



LINQ to DataSet示例 [ ^ ]



VB.NET使用LINQ查询DataTable并绑定到Gridview [ ^ ]


你读过那个页面吗?





这些示例中使用的FillDataSet方法在将数据加载到数据集 [ ^ ]。

Hi
I want to fill dataset using linq object to the example In Microsoft's site:

example

' Fill the DataSet. 
Dim ds As New DataSet()
ds.Locale = CultureInfo.InvariantCulture
' See the FillDataSet method in the Loading Data Into a DataSet topic.
FillDataSet(ds)

Dim products As DataTable = ds.Tables("Product")

Dim query = From product In products.AsEnumerable() _
            Select product.Field(Of String)("Name")

Console.WriteLine("Product Names:")
For Each productName In query
    Console.WriteLine(productName)
Next



The FillDataSet (ds) did not implement the source? What was the code should be?

or

How to fill a dataset because all the examples of FillDataSet not implement this method in linq ?

解决方案

' Fill the DataSet. 
Dim ds As New DataSet()
ds.Locale = CultureInfo.InvariantCulture
' See the FillDataSet method in the Loading Data Into a DataSet topic.
FillDataSet(ds)

Dim products As DataTable = ds.Tables("Product")

Dim query = From product In products.AsEnumerable() _
            Select product
Console.WriteLine("Product Names:")
For Each p In query
    Console.WriteLine(p.Field(Of String)("Name"))
Next


Hi,

You need to review below links, which will help you to understand implementation for the same.

LINQ to DataSet Examples[^]

VB.NET Using LINQ to Query DataTable and Bind to Gridview[^]


have you read that page?


The FillDataSet method used in these examples is specified in Loading Data Into a DataSet[^].


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