asked on

Pass ReportViewer Parameter as Report Title

I would like to pass a parameter to a ReportViewer to use in the Page Heater.

I have the code:
Dim params As ReportParameter() = New ReportParameter(0) {}
params(0) = New ReportParameter("userOptions", "xxx")
ReportViewer1.LocalReport.SetParameters(params)

I have the parameter userOptions set in the Report Parameters dialog as a string data type.

And I have a text box in the Page Header whose Value is set to:
=Parameters!userOptions

Without this parameter the report runs just fine, but with it, I get the error LocalProcessingException, "An error occurred during local report processing," on the third line of code shown above.

Could there be something I'm not filling out in the dialog? Or what do I have wrong?

pdd1lan

try to put put "Me.ReportViewer1.RefreshReport()"

Dim params As ReportParameter() = New ReportParameter(0) {}
params(0) = New ReportParameter("userOptions", "xxx")
ReportViewer1.LocalReport.SetParameters(params)
Me.ReportViewer1.RefreshReport()

Amy

ASKER

Yes, I have RefreshReport. But the error comes on the SetParameters line.

pdd1lan

I copied your code, set textbox in page head =Parameters!userOptions.Value
and run it and it worked for me

Dim params As ReportParameter() = New ReportParameter(0) {}
params(0) = New ReportParameter("userOptions", "xxx")
ReportViewer1.LocalReport.SetParameters(params)
Me.ReportViewer1.RefreshReport()

Amy

ASKER

So it must be something in my report. My report runs just fine without that line where it uses the parameters.

pdd1lan

have you tried to create a new RDLC report instead? something might helps.

Amy

ASKER

I tried creating another report and using that one. Now I get the message that the "parameter is missing a value."

Could it be that I'm setting things wrong in the Report Parameters dialog?

Amy

ASKER

Now I've tried checked the box in the Report Parameters to allow null values, and I get the message, "Some parameters or credentials have not been specified."

pdd1lan

in the report, have you created a Parameters (userOptions)?

can you attach your report (rdlc) file? I give it a look if you would like....

Amy

ASKER

Yes, I have created the parameter userOptions.

Here is my rdlc file.
TasksToDo.rdlc.txt

pdd1lan

try it:

delete your "userOptions" parameter in your report, remove =Parameters!userOptions.Value in textbox8

recreate "userOptions" parameter in your report, and reset "=Parameters!userOptions.Value" in your textbox 8. and should fix your issue.

also, your textbox8 was set in visible= false (hide mode), you need to set it to visible = true (visibillity to show).

Amy

ASKER

Now I get "The 'userOptions' parameter is missing a value" instead of the report showing in the ReportViewer when I run it.

Is there something I need to set in the parameters?

pdd1lan

look like your report parameter does not check for "Allow blank value" or "allow null value" property.
if you don't check them in your "userOptions" report parameter, and then when you pass a null or empty value into your report, it will give you "parameter is missing a value" error.

------
Dim params As ReportParameter() = New ReportParameter(0) {}
params(0) = New ReportParameter("userOptions", "xxx")
ReportViewer1.LocalReport.SetParameters(params)
Me.ReportViewer1.RefreshReport()

Amy

ASKER

Thank you, pdd1lan.

I copied your code exactly, and I checked the box to allow for Null values.

Now where the report should show in the ReportViewer when I run it, it says "Some parameters or credentials have not been specified."

ASKER CERTIFIED SOLUTION

pdd1lan

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Amy

ASKER

Success! Yea!

I needed both refreshes:
ReportViewer1.LocalReport.Refresh()
ReportViewer1.RefreshReport()