vb.net 读写xml方法(1)
Dim domXmlDocument As System.Xml.XmlDocument
Dim tmpPath As String = AppTempFilePath
Dim xmlFile As String = tmpPath + "\testXml.xml"
'窗体加载事件
Private Sub TestXml_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'读xml过程测试通过
Dim domXmlDocument As System.Xml.XmlDocument
Dim tmpPath As String = AppTempFilePath
Dim xmlFile As String = tmpPath + "\testXml.xml"
Dim reader As System.Xml.XmlReader = Nothing
Try
reader = New Xml.XmlTextReader(xmlFile)
'reader.
While reader.Read
Me.lboxXml.Items.Add(reader.Name + reader.Value)
End While
Catch ex As Exception
MsgBox(ex.Message)
Finally
If Not (reader Is Nothing) Then
reader.Close()
End If
End Try
End Sub
'载入xml事件
Private Sub btnXmlLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnXmlLoad.Click
'Me.lboxXml.Items.Clear()
''读xml过程测试通过
'Dim reader As System.Xml.XmlReader = Nothing
'Try
' reader = New Xml.XmlTextReader(xmlFile)
' While reader.Read
' Me.lboxXml.Items.Add(reader.Name + ":" + reader.Value)
' End While
'Catch ex As Exception
' MsgBox(ex.Message)
'Finally
' If Not (reader Is Nothing) Then
' reader.Close()
' End If
'End Try
Dim ds As New DataSet
Try
'如果直接使用ds做datasource则不会展开datagrid，用dv则可以直接显示正确。
ds.ReadXml(xmlFile)
Dim tb As DataTable
Dim dv As DataView
tb = ds.Tables(0)
dv = New DataView(tb)
DataGrid1.DataSource = dv
'DataGrid1.DataMember = "testXmlMember"
'DataGrid1.DataMember = "employeefname"
'Dim dxd As New XmlDataDocument
Catch ex As Exception
MsgBox(ex.Message.ToString)
End Try
End Sub
'保存新建xml内容事件
Private Sub btnSaveNew_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSaveNew.Click
Dim myTW As New XmlTextWriter(tmpPath + "\testXmlWrite.xml", Nothing)
myTW.WriteStartDocument()
myTW.Formatting = Formatting.Indented
myTW.WriteStartElement("Team")
myTW.WriteStartElement("player")
myTW.WriteAttributeString("Name", "George Zip")
myTW.WriteAttributeString("Position", "QB")
myTW.WriteElementString("Nickname", "Zippy")
myTW.WriteElementString("JerseyNumber", XmlConvert.ToString(7))
myTW.WriteEndElement()
myTW.WriteEndElement()
myTW.WriteEndDocument()
myTW.Close()
End Sub
对于修改datagrid中指定内容并保存到xml中还不会,弄明白了,在vb.net与xml读写的2中写出来!