[英]How to retrieve a blob from mysql to picturebox when i click the datagrid in vb.net
我正在vb.net中创建一个配置文件数据库程序,每个配置文件都有一个picture.its数据类型是blob,如何从mysql中将其检索到图片框?
这是一个可以帮助您的简单代码段:
cmd = New SqlCommand("select photo from Information where name='" & _
DataGridView1.CurrentRow.Cells(0).Value() & "'", con)
Dim imageData As Byte() = DirectCast(cmd.ExecuteScalar(), Byte())
If Not imageData Is Nothing Then
Using ms As New MemoryStream(imageData, 0, imageData.Length)
ms.Write(imageData, 0, imageData.Length)
PictureBox1.BackgroundImage = Image.FromStream(ms, True)
End Using
End If
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