把图片文件转换成XML文件代码,VB.Net代码库,德仔网

代码语言
代码分类
【VB.Net】把图片文件转换成XML文件
作者:Dezai.CN / 发布于2013/6/18/ 922

	Public Class Form1
	 Inherits System.Windows.Forms.Form

	#Region " Windows 窗体设计器生成的代码 "
	 Public Sub New()
	 MyBase.New()
	 InitializeComponent()
	 '在 InitializeComponent() 调用之后添加任何初始化
	 End Sub

	 '窗体重写处置以清理组件列表。
	 Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
	 If disposing Then
	 If Not (components Is Nothing) Then
	 components.Dispose()
	 End If
	 End If
	 MyBase.Dispose(disposing)
	 End Sub

	 'Windows 窗体设计器所必需的
	 Private components As System.ComponentModel.IContainer
	 '注意：以下过程是 Windows 窗体设计器所必需的
	 '可以使用 Windows 窗体设计器修改此过程。
	 '不要使用代码编辑器修改它。
	 Friend WithEvents Button1 As System.Windows.Forms.Button
	 Friend WithEvents Button2 As System.Windows.Forms.Button
	 Friend WithEvents PictureBox1 As System.Windows.Forms.PictureBox
	 Friend WithEvents Button3 As System.Windows.Forms.Button
	 Friend WithEvents Label1 As System.Windows.Forms.Label
	 Friend WithEvents Label2 As System.Windows.Forms.Label
	 Private Sub InitializeComponent()
	 Me.Button1 = New System.Windows.Forms.Button()
	 Me.Button2 = New System.Windows.Forms.Button()
	 Me.PictureBox1 = New System.Windows.Forms.PictureBox()
	 Me.Button3 = New System.Windows.Forms.Button()
	 Me.Label1 = New System.Windows.Forms.Label()
	 Me.Label2 = New System.Windows.Forms.Label()
	 Me.SuspendLayout()
	 '
	 'Button1
	 '
	 Me.Button1.Location = New System.Drawing.Point(365, 63)
	 Me.Button1.Name = "Button1"
	 Me.Button1.Size = New System.Drawing.Size(115, 23)
	 Me.Button1.TabIndex = 0
	 Me.Button1.Text = "将图象保存成XML"
	 '
	 'Button2
	 '
	 Me.Button2.Location = New System.Drawing.Point(365, 98)
	 Me.Button2.Name = "Button2"
	 Me.Button2.Size = New System.Drawing.Size(115, 23)
	 Me.Button2.TabIndex = 1
	 Me.Button2.Text = "从XML中得到图象"
	 '
	 'PictureBox1
	 '
	 Me.PictureBox1.Location = New System.Drawing.Point(18, 6)
	 Me.PictureBox1.Name = "PictureBox1"
	 Me.PictureBox1.Size = New System.Drawing.Size(320, 460)
	 Me.PictureBox1.TabIndex = 2
	 Me.PictureBox1.TabStop = False
	 '
	 'Button3
	 '
	 Me.Button3.Location = New System.Drawing.Point(365, 28)
	 Me.Button3.Name = "Button3"
	 Me.Button3.Size = New System.Drawing.Size(115, 23)
	 Me.Button3.TabIndex = 3
	 Me.Button3.Text = "浏览图片&hellip;"
	 '
	 'Label1
	 '
	 Me.Label1.Location = New System.Drawing.Point(369, 135)
	 Me.Label1.Name = "Label1"
	 Me.Label1.Size = New System.Drawing.Size(105, 95)
	 Me.Label1.TabIndex = 4
	 '
	 'Label2
	 '
	 Me.Label2.Location = New System.Drawing.Point(367, 437)
	 Me.Label2.Name = "Label2"
	 Me.Label2.Size = New System.Drawing.Size(130, 16)
	 Me.Label2.TabIndex = 5
	 Me.Label2.Text = "【孟宪会之精彩世界】"
	 '
	 'Form1
	 '
	 Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
	 Me.ClientSize = New System.Drawing.Size(500, 480)
	 Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label2, Me.Label1, Me.Button3, Me.PictureBox1, Me.Button2, Me.Button1})
	 Me.Name = "Form1"
	 Me.Text = "图象文件和XML格式文件互换例子"
	 Me.ResumeLayout(False)

	 End Sub

	#End Region

	 Private MyFile As String = ""
	 Private MyFileExt As String = ""
	 Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
	 Handles Button2.Click
	 Dim pic As String
	 Dim MyXml As System.Xml.XmlDocument = New System.Xml.XmlDocument()
	 MyXml.Load("c:\MyPhoto.xml")
	 Dim picNode As System.Xml.XmlNode
	 picNode = MyXml.SelectSingleNode("/pic/photo")
	 pic = picNode.InnerText
	 Dim memoryStream As System.IO.MemoryStream
	 memoryStream = New System.IO.MemoryStream(Convert.FromBase64String(pic))
	 Me.PictureBox1.Image = New System.Drawing.Bitmap(memoryStream)
	 memoryStream.Close()
	 End Sub

	 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
	 Handles Button1.Click
	 If MyFile = "" Then
	 MessageBox.Show("请选择一个图片！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Warning)
	 Exit Sub
	 End If
	 Dim MyImg As System.Drawing.Image = MyImg.FromFile(MyFile)
	 Dim memoryStream As System.IO.MemoryStream = New System.IO.MemoryStream()
	 MyImg.Save(memoryStream, GetImageType(MyFileExt))
	 Dim b() As Byte
	 b = memoryStream.GetBuffer()
	 Dim pic As String = Convert.ToBase64String(b)
	 memoryStream.Close()
	 Dim MyXml As System.Xml.XmlDocument = New System.Xml.XmlDocument()
	 MyXml.LoadXml("孟宪会" + pic + "")
	 MyXml.Save("c:\MyPhoto.xml")
	 Label1.Text = "文件被保存到了：" + Microsoft.VisualBasic.ChrW(13) + "c:\MyPhoto.xml"
	 End Sub

	 Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
	 Handles Button3.Click
	 Dim openFileDialog1 As New OpenFileDialog()
	 openFileDialog1.InitialDirectory = "c:\"
	 openFileDialog1.Filter = "PNG(*.png)|*.png|Gif(*.gif)|*.gif|Jpg(*.jpg)|*.jpg|所有图象文件(*.*)|*.*"
	 openFileDialog1.FilterIndex = 2
	 openFileDialog1.RestoreDirectory = True
	 If openFileDialog1.ShowDialog() = DialogResult.OK Then
	 MyFile = openFileDialog1.FileName()
	 MyFileExt = MyFile.Substring(MyFile.LastIndexOf(".") + 1)
	 End If
	 End Sub

	 Public Function GetImageType(ByVal str As String) As System.Drawing.Imaging.ImageFormat
	 Select Case str.ToLower()
	 Case "jpg"
	 Return System.Drawing.Imaging.ImageFormat.Jpeg
	 Case "gif"
	 Return System.Drawing.Imaging.ImageFormat.Gif
	 Case "tiff"
	 Return System.Drawing.Imaging.ImageFormat.Tiff()
	 Case "icon"
	 Return System.Drawing.Imaging.ImageFormat.Icon
	 Case "image/png"
	 Return System.Drawing.Imaging.ImageFormat.Png
	 Case Else
	 Return System.Drawing.Imaging.ImageFormat.MemoryBmp
	 End Select
	 End Function

	 Private Sub Form1_Closing(ByVal sender As Object, ByVal e As System.ComponentModel.CancelEventArgs) _
	 Handles MyBase.Closing
	 System.Diagnostics.Process.Start("IExplore.exe", "http://xml.sz.luohuedu.net/")
	 End Sub
	End Class
评论列表
本站所提供的代码，版权归原作者所有，若有侵犯作者版权，请与我们联系，我们将立即删除或修改。谢谢!
本站所有代码发布及提供者。
试试其它关键字
　转换成XML文件　
同语言下
可能有用的
Dezai.CN贡献的其它代码(4037)