vbnet储存图片文件 vb载入图片

vb.net怎样保存图片文件，并且保存的图片名称为当前时间

将PictureBox控件里的图片，保存为文件：

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1，文件格式不变化：

PictureBox1.Image.Save("C:\" Format(Now, "HH-mm-ss") ".bmp")

2，文件格式有变化：

PictureBox1.Image.Save("C:\" Format(Now, "HH-mm-ss") ".bmp", System.Drawing.Imaging.ImageFormat.Bmp)

vb.net 中如何将图片保存到SQL数据库

#Region "二进制文件的存储函数" Public Function BinaryToFile(ByRef TableRowColItem As Object, ByVal FileName As String) As Boolean Dim data As Byte() = TableRowColItem

Dim myfilestream As New System.IO.FileStream(FileName, IO.FileMode.Create)

myfilestream.Write(data, 0, data.Length)

myfilestream.Close()

Return True

End Function Public Function BinaryToImage(ByRef TableRowColItem As Object, ByRef image As Image) As Boolean Dim data As Byte() = TableRowColItem Dim imgStream As New System.IO.MemoryStream '(data)

imgStream.Write(data, 0, data.Length)

image = System.Drawing.Image.FromStream(imgStream)

imgStream.Close()

imgStream.Dispose() Return True

End Function

Public Function BinaryFromFile(ByVal FileName As String, ByRef TableRowColItem As Object) As Boolean Using myfilestream As New FileStream(FileName, FileMode.Open, FileAccess.Read)

Dim data() As Byte

ReDim data(myfilestream.Length - 1)

myfilestream.Read(data, 0, myfilestream.Length)

myfilestream.Close()

TableRowColItem = data End Using

Return True

End Function Public Function BinaryFromImage(ByRef Image As Image, ByRef TableRowColItem As Object) As Boolean

Dim imgStream As New MemoryStream

Dim b As New Bitmap(Image) b.Save(imgStream, System.Drawing.Imaging.ImageFormat.Jpeg) Dim data As Byte() = imgStream.GetBuffer

TableRowColItem = data

data = TableRowColItem

imgStream.Close()

imgStream.Dispose() Return True

End Function Public Function BinaryFromImage(ByVal Image As Image, ByRef TableRowColItem As Object, ByVal imgFormat As System.Drawing.Imaging.ImageFormat) As Boolean

Dim imgStream As New MemoryStream

'Image.Save(imgStream, imgFormat)

'Dim b As New Bitmap(Image)

'b.Save("c:\a.bmp", imgFormat)

'b.Save("c:\a.bmp", imgFormat) Dim data As Byte() = imgStream.GetBuffer TableRowColItem = data

data = TableRowColItem

imgStream.Close()

Return True

End Function

#End Region

vb.net怎样保存图片，保存路径为textbox1.text

如果TextBox1.Text包括了路径文件名；

PictureBox1.Image.Save(TextBox1.Text)

请问VB.net中如何保存BMP/jpg图像

我理解你

我写过图片网络传输的和你要求的一样

为了不把图片写到硬盘 又从硬盘读取

而直接保存图片内存流 进行网络传输

从网络读取的图片byte数组转成图片代码如下

Dim mStream As New IO.MemoryStream

mStream.Write(b, 0, b.length) '这里b就是你的一维数组了

Dim Img As New Bitmap(mStream)

mStream.Close()

mStream.Dispose()

下面是把图片保存到一维数组的方法

Dim Stream As New IO.MemoryStream

im.Save(Stream, System.Drawing.Imaging.ImageFormat.Jpeg)

im = Nothing

Stream.Flush()

Dim b As Byte() = Stream.ToArray

Stream.Dispose()

vb.net保存.jpg文件 文件名为当前时间，怎么实现，各位谢谢了。。。。

now()可以返回当前时间，如果你要把它作文件名，那么需要先转换成string，可以使用

format函数

，比如format(now(),