store image in database in vb.net

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how ti solve this error?

i m getting error at cm.ExecuteNonQuery()that : Invalidcastexceptionwasunhealded

VB

Private Sub btnsubmit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsubmit.Click
       Dim sampleImage As Bitmap = New Bitmap(100, 100)
       Dim mStream As New System.IO.MemoryStream
       Dim ImageBytes As Byte()

       sampleImage.Save(mStream, Imaging.ImageFormat.Png)
       ImageBytes = mStream.ToArray
       cn.Open()
       Dim cm As SqlCommand = New SqlCommand("insert into Empdetails(EmpName,EmpMobileNo,EmpEmail,EmpUsername,EmpPassword,EmpImage) values(@p1,@p2,@p3,@p4,@p5,@p6)", cn)
       cm.Parameters.Add("@p1", SqlDbType.VarChar).Value = txtname.Text
       cm.Parameters.Add("@p2", SqlDbType.VarChar).Value = txtmobile.Text
       cm.Parameters.Add("@p3", SqlDbType.VarChar).Value = txtemail.Text
       cm.Parameters.Add("@p4", SqlDbType.VarChar).Value = txtusername.Text
       cm.Parameters.Add("@p5", SqlDbType.VarChar).Value = txtpassword.Text
       cm.Parameters.Add("@p6", SqlDbType.Image).Value = pbimage.Image

       cm.ExecuteNonQuery()
       lblmsg.Text = "you have succesfully registered"
       cn.Close()
   End Sub

Posted 20-Mar-12 10:47am

pandya purvang

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raki1111 21-Mar-12 1:14am

Hi,
Instead of assigning the image directly , u have to assign the array of bytes .

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Jαved · Answer 1 · 2012-03-21T03:07:00

Hi,
try the following-
it uses Picturebox to get the Image.

VB

Try
                    con.ConnectionString = str
                    con.Open()
                    Dim cmd As SqlCommand = New SqlCommand("insert into Empdetails(EmpName,EmpMobileNo,EmpEmail,EmpUsername,EmpPassword,EmpImage) values(@p1,@p2,@p3,@p4,@p5,@p6)", cn)
                    ' Add code for other Parameter
                    ' Code for Image Parameter
                    Dim param As New SqlParameter("@ImageData", SqlDbType.VarBinary)
                    Dim ImageData As Byte() = IO.File.ReadAllBytes(PictureBox1.ImageLocation)
                    param.Value = ImageData
                    cmd.Parameters.Add(param)
                    cmd.ExecuteNonQuery()
                    MsgBox("You are Registered!")
                Catch ex As Exception
                    MsgBox(ex.Message)
                Finally
                    con.Close()
                End Try

If any problem persists let me know.

Thanks,