从数据库中读取图片，并显示在页面上的 Image 控件上

可以先在一个页面上输出图像，img再绑定这个页面就行了，具体做法如下：

例如：输出的图像的页面名字叫：imageshow.aspx,在imageshow.aspx.vb的Page_Load()函数中把存在数据库中的图片加载在此页面上，具体代码如下：

         Dim DataBaseNameList(30) As String
        Dim GH_Number As Integer
        Dim SQL_String_GHList As String
        SQL_String_GHList = "Data Source=" + DataSouseName + "; Integrated Security=SSPI;Initial Catalog=" + "GreenHouseList"
        Dim con As SqlClient.SqlConnection = New SqlClient.SqlConnection(SQL_String_GHList)
        Dim com As New SqlClient.SqlCommand
        Dim ds As DataSet

        com.CommandText = "SELECT * FROM SaveImage"
        com.Connection = con

        Dim da As New SqlDataAdapter(com)
        Try
            con.Open()
            ds = New DataSet
            da.Fill(ds, "SaveImage")
            con.Close()
        Catch ex As Exception
        End Try
        GH_Number = ds.Tables("SaveImage").Rows.Count   '获取表的行数
        Dim strTemp As String
        Dim i As Integer = 0
        Dim data() As Byte
        For i = 0 To GH_Number - 1 Step 1
            strTemp = ds.Tables("SaveImage").Rows(i)("GH_RealName")
            If strTemp = strName Then
                data = ds.Tables("SaveImage").Rows(i)("Image")
                Response.BinaryWrite(data)
                Response.End()
            End If
        Next i

    End Sub

其中：Response.BinaryWrite(data)就是从数据库中以字节形式读出图片。

然后，再在要显示的页面上，也就是加载image控件的页面的Page_Load()的函数中写上如下代码：Image1.Attributes.Item("src") = "ImageShow.aspx"就ok了！你所要显示的图片就显示在Image控件上了