Unable to cast object of type vb.net

Question

Invalid cast exception was unhandled

The error is in "me.picturebox3.image = dt.rows(0).item("pic")

Unable to cast object of type system.byte[] to type system.drawing.image .

Dim dt as new datatable
Da.fill(dt)
Me.picturebox3.image = dt.rows(0).item("pic")                  

I am new in calling images from data table to picturebox. Help please.. Thanks

Answer 1

You need to find a way to construct an object of type System.Drawing.Image from the System.Byte() you currently have on hand.

Here's how you do it:

Dim bytes As Byte() = CType(dt.Rows(0).Item("pic"), Byte())
Dim ms As New MemoryStream(bytes)

Me.picturebox3.Image = Image.FromStream(ms)

This will work as long as your Byte() is in a format that can be handled out of the box, ie JPEG, BMP etc.