從xml中獲取項目並將其添加到列表視圖

我想從xml文檔中添加項目並將其加載到列表視圖中。我不斷收到一行System.OutOfMemory異常的項目。添加（項目）。我做錯了什麼，我該如何正確地做？我從murach的開始visual basic.NET得到這段代碼。當我運行這一點，增加了項目之間的隨機空間在ListView從xml中獲取項目並將其添加到列表視圖

Structure ProjectInfo 
    Dim name As String 
    Dim fileextentions As ArrayList 
    Dim imagepath As String 
End Structure 

Dim project As ProjectInfo 
Dim projects As New ArrayList() 

'The project is loading 
Private Sub diaNewProject_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 

    'Set the default filepath 
    txtFilepath.Text = "C:\Users\" & GetUserName() & "\Documents\Homerun IDE\Projects" 

    'Load the project types 
    If LoadProjects() Then 
     For Each Me.project In projects 
      'Add the items 
      ltvItems.Items.Add(project.name) 
     Next 
    Else 
     'Close the form 
     Me.Close() 
    End If 

End Sub 
Private Function LoadProjects() As Boolean 

    Dim ProjectReader As New XmlTextReader(_globals.ProjectsListFilename) 
    ProjectReader.WhitespaceHandling = WhitespaceHandling.None 
    Try 
     Do Until ProjectReader.Name = "projecttype" 
      ProjectReader.Read() 
     Loop 
     Do While ProjectReader.Read() 
      If ProjectReader.Name = "projecttype" Then 
       project.name = ProjectReader.Item(Name) 
       projects.Add(project) 
      End If 
     Loop 
     ProjectReader.Close() 
    Catch ex As XmlException 
     _logger.LogException(ex, TraceEventType.Critical, "Load Projects Error", "Make sure that your projectstypes.xml file is correctly formatted. In your settings " & _ 
          "you can reset the file to your its default.") 
     Return False 
    End Try 

    Return True 

End Function

來源

2010-07-22 muckdog12

您這裏有一個無限循環：

Do While ProjectReader.Name = "projecttype" 
     project.name = ProjectReader.Item("name") 
     'TODO: extension 
     'TODO: imagepath 
     projects.Add(project) 
Loop

你必須要麼提前讀卡器內環路或刪除這個循環。

來源

2010-07-22 02:17:54 EndangeredMassa

我無法知道xml文件中有多少項目，所以我沒有看到一種方法來推進循環，我將如何做到這一點沒有循環？ – muckdog12 2010-07-22 02:24:14

我不知道XML文件的細節，但是您可能想在此循環的底部添加「ProjectReader.Read（）」。 – EndangeredMassa 2010-07-22 13:27:54

Do While ProjectReader.Read() 
     If ProjectReader.Name = "name" Then 
     ... 
     End If 
    Loop

你也應該注意到，project.name = ProjectReader.Item("name")將返回屬性@name的值，以便爲它工作的元件結構必須是這樣的。

<name name="project name"/>

這可能不是你想要的。如果你想要的元素值，然後使用project.name = ProjectReader.ReadString()

來源

2010-07-22 04:27:48 fivebob

從xml中獲取項目並將其添加到列表視圖

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