Displaying image from folder/file in vb.net

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夕颜
夕颜 2021-02-09 02:32
Dim ImagePath As String = \"images/spaceship2.png\"
Dim img1 As Bitmap
Dim newImage As Image = Image.FromFile(\"images/spaceship2.png\")

img1 = New Bitmap(ImagePath)
pb         


        
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2条回答
  • 2021-02-09 03:09

    You can try this:

    PictureBox1.Image = Image.FromFile("c:\some path\folder\myImage.jpg")
    
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  • 2021-02-09 03:13

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

    Try something like...

    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)
    

    Here's an updated version that doesn't lock the original image file:

    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
    
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