在 vb.net 中显示文件夹/文件中的图像

Posted 2023-02-19

【中文标题】在 vb.net 中显示文件夹/文件中的图像

【英文标题】：Displaying image from folder/file in vb.net

【发布时间】：2013-11-13 23:00:35

【问题描述】：

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片，例如，id 为 22137471 的学生，名称为 22137471 的图片将显示在我的图片框上，在此之间，我在 google 某处看到了此代码。

【参考方案1】：

我想显示文件夹中的图像，例如，具有 id 的学生 编号为 22137471，名称为 22137471 的图片将是 显示在我的图片框上

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

【讨论】：

Dim id As String = LinkLabel1.Text Dim folder As String = "d:\image\" Dim filename As String = System.IO.Path.Combine(folder, id & ".jpg") PictureBox1.Image = Image.FromFile(filename) '它不起作用，我将从datadisk d加载它，我的文件夹是image，里面是要显示的图片

【参考方案2】：

你可以试试这个：

PictureBox1.Image = Image.FromFile("c:\some path\folder\myImage.jpg")