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VB.NET ObjectDataSource.Updating事件代码示例

本文整理汇总了VB.NET中System.Web.UI.WebControls.ObjectDataSource.Updating事件的典型用法代码示例。如果您正苦于以下问题:VB.NET ObjectDataSource.Updating事件的具体用法?VB.NET ObjectDataSource.Updating怎么用?VB.NET ObjectDataSource.Updating使用的例子?那么恭喜您, 这里精选的事件代码示例或许可以为您提供帮助。您也可以进一步了解该事件所在System.Web.UI.WebControls.ObjectDataSource的用法示例。


在下文中一共展示了ObjectDataSource.Updating事件的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。

示例1: EmployeeUpdating

Public Sub EmployeeUpdating(ByVal source As Object, ByVal e As ObjectDataSourceMethodEventArgs)
    Dim dcs As New DataContractSerializer(GetType(Employee))
    Dim xmlData As String
    Dim reader As XmlReader
    Dim originalEmployee As Employee

    xmlData = ViewState("OriginalEmployee").ToString()
    reader = XmlReader.Create(New StringReader(xmlData))
    originalEmployee = CType(dcs.ReadObject(reader), Employee)
    reader.Close()

    e.InputParameters.Add("originalEmployee", originalEmployee)
End Sub

Public Sub EmployeeSelected(ByVal source As Object, ByVal e As ObjectDataSourceStatusEventArgs)
    If e.ReturnValue IsNot Nothing Then
        Dim dcs As New DataContractSerializer(GetType(Employee))
        Dim sb As New StringBuilder()
        Dim writer As XmlWriter
        writer = XmlWriter.Create(sb)
        dcs.WriteObject(writer, e.ReturnValue)
        writer.Close()

        ViewState("OriginalEmployee") = sb.ToString()
    End If
End Sub
开发者ID:VB.NET开发者,项目名称:System.Web.UI.WebControls,代码行数:26,代码来源:ObjectDataSource.Updating

示例2: UpdateEmployeeAddress

Public Class EmployeeLogic
    Public Shared Function GetFullNamesAndIDs() As Array
        Dim ndc As New NorthwindDataContext()

        Dim employeeQuery = _
            From e In ndc.Employees _
            Order By e.LastName _
            Select FullName = e.FirstName + " " + e.LastName, EmployeeID = e.EmployeeID

        Return employeeQuery.ToArray()
    End Function

    Public Shared Function GetEmployee(ByVal empID As Integer) As Employee

        If (empID < 0) Then
            Return Nothing
        Else
            Dim ndc As New NorthwindDataContext()
            Dim employeeQuery = _
                From e In ndc.Employees _
                Where e.EmployeeID = empID _
                Select e

            Return employeeQuery.Single()
        End If
    End Function

    Public Shared Sub UpdateEmployeeAddress(ByVal originalEmployee As Employee, ByVal address As String, ByVal city As String, ByVal postalcode As String)

        Dim ndc As New NorthwindDataContext()
        ndc.Employees.Attach(originalEmployee, False)
        originalEmployee.Address = address
        originalEmployee.City = city
        originalEmployee.PostalCode = postalcode
        ndc.SubmitChanges()
    End Sub
End Class
开发者ID:VB.NET开发者,项目名称:System.Web.UI.WebControls,代码行数:37,代码来源:ObjectDataSource.Updating


注:本文中的System.Web.UI.WebControls.ObjectDataSource.Updating事件示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。