vb.net-2010 - 在 vb.net 中显示文件夹/文件中的图像

Question

Dim ImagePath As String = "images/spaceship2.png"
Dim img1 As Bitmap
Dim newImage As Image = Image.FromFile("images/spaceship2.png")

img1 = New Bitmap(ImagePath)
pb2.ImageLocation = ImagePath

pb1.Image = newImage

我想显示文件夹中的图像，例如，id 号为 22137471 的学生，名称为 22137471 的图片将显示在我的图片框中，之间，我在谷歌的某个地方看到了这段代码。

Answer 1

i want to display image from folder, for example, student with an idnumber of 22137471, the picture with the name of 22137471 will bedisplay on my picture box

尝试类似...

Dim id As String = "22137471"
Dim folder As String = "c:\some path\folder"
Dim filename As String = System.IO.Path.Combine(folder, id & ".png")
PictureBox1.Image = Image.FromFile(filename)

这是一个不锁定原始图像文件的更新版本:

Dim id As String = "22137471"
Dim folder As String = "c:\some path\folder"
Dim filename As String = System.IO.Path.Combine(folder, id & ".png")
Try
    Using fs As New System.IO.FileStream(filename, IO.FileMode.Open)
        PictureBox1.Image = New Bitmap(Image.FromStream(fs))
    End Using
Catch ex As Exception
    Dim msg As String = "Filename: " & filename &
        Environment.NewLine & Environment.NewLine &
        "Exception: " & ex.ToString
    MessageBox.Show(msg, "Error Opening Image File")
End Try