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Hi,

I've problem in displaying image on my rdlc (Microsoft Report Viewer) report. I took picture box on my report and made its properties as SOURCE=EXTERNAL, VALUE=Parameters!Path.value where Path is my Report Parameter.

Below is the code to display image on Report load event:

Dim paramList1 As New Generic.List(Of ReportParameter)
paramList1.Add(New ReportParameter("Path", "+ /images/CPC.jpg"))       Me.ReportViewer1.LocalReport.SetParameters(paramList1)


I'm facing problem on the second line of my code i.e. " + /images/CPC.jpg"

Plz help me, I'm stuck here.

Following is the error:

Conversion from string " /images/CPC.jpg" to type 'Double' is not valid.

Thanks
Posted
Updated 15-Jan-21 15:27pm

VB
Dim arrPic as byte() = 'Load the image as array of byte'
'Convert byte() to BASE64
Dim sIMGBASE64 as String = Convert.ToBase64String(arrPic))
'Add the BASE64 stream to the parameters
paramList1.Add(New ReportParameter(<sparamname>, sIMGBASE64)

where
sParamName is a parameter of the Report

On the Report set the "Value" property of Picture Box like this:
VB
Value=System.Convert.FromBase64String(Parameters!<sparamname>.Value)
   
v2
make sure you add
"File:///"
in front of the image path
and in the report parameter you created for Path, make sure it is of type string, and not double or integer
   
Try this, I use this in External Images for RDLC.
Just initialize the image parameter like a normal string parameter, and set the Me.ReportViewer1.LocalReport.EnableExternalImages to TRUE
Dim ImgParam As New ReportParameter("ImgParam", "")

Dim path = _
System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase)

ImgParam = New ReportParameter("ImgParam", path & "\myImg.png", True)
Dim parameters As ReportParameter() = {ImgParam}

ReportViewer1.Reset()
With Me.ReportViewer1.LocalReport
    .EnableExternalImages = True
    .SetParameters(parameters)
End With

Me.ReportViewer1.RefreshReport()
   
v2
your code is in VB.net so use " & " instead of " + " .... may be that is the problem
   
Comments
CHill60 12-Jun-13 18:54pm
   
The question is nearly a year old ...and the + was inside quotes. Nice that you are trying to help but it would be better to help on more recent questions

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