I'm attempting to create drill-through functionality to another report using **Text Box Properties > Action > Go to URL** , all parameters that are in the drill-through report are included in the url expression to ensure no defaults within the drill through report are used, and are specified in the order that they exist in the drill-through rdl.

**@ReportIntermediary** is a multi-value parameter, all others are single-value.

```vb
=Globals!ReportServerUrl 
& "/reportserver?" 
& replace(Globals!ReportFolder, " ", "+")
& "/Snapshot+Report"
& "&rs:Command=Render&rs:ParameterLanguage=en-AU&rc:Parameters=false"
& "&ReportRegion=National" 
& "&ReportDate=" & Code.URLEncode(Format(Parameters!ReportDate.Value, "yyyy-MM-dd")) 
& "&ReportIntermediaryGroup=" & CStr(Fields!GroupIntermediaryNo.Value)
& "&ReportNumberOfMonthsToShow=3"
& "&ReportIntermediaryState=National"
& Fields!ParameterIntermediaryList.Value

```

Where `Fields!ParameterIntermediaryList.Value` is formatted as:

```
&ReportIntermediary=123456789&ReportIntermediary=123456789

```

And a sample of the string that is formed by the expression being:

```
http://localhost/ReportServer/Pages/ReportViewer.aspx?/Folder/Sub+Folder/Snapshot+Report&rs:Command=Render&rs:ParameterLanguage=en-AU&ReportRegion=National&ReportDate=2013-06-01&ReportIntermediaryGroup=123456789&ReportNumberOfMonthsToShow=3&ReportIntermediaryState=National&ReportIntermediary=123456789&ReportIntermediary=123456789&ReportIntermediary=123456789

```

I have put the above expression in a text box within the row group of the matrix and the string appears to be well formed. When I take that string and manually enter it into IE address bar the report will render.

**If the manual method will render, why won't the click-through behaviour be working in the report?**

I have also tried setting the `Go to URL` expression to `=ReportItems!txtLink.Value`, where this text box holds the string value created by the expression above. This doesn't work either.

Here is the XML from within the rdl file:

```xml
<CellContents>
    <Textbox Name="txtGroupIntermediaryName">
        <KeepTogether>true</KeepTogether>
        <Paragraphs>
            <Paragraph>
                <TextRuns>
                    <TextRun>
                        <Value>=Fields!GroupIntermediaryName.Value</Value>
                        <Style>
                            <FontSize>8pt</FontSize>
                            <TextDecoration>Underline</TextDecoration>
                            <Color>Blue</Color>
                        </Style>
                    </TextRun>
                </TextRuns>
                <ListLevel>1</ListLevel>
                <Style />
            </Paragraph>
        </Paragraphs>
        <ActionInfo>
            <Actions>
                <Action>
                    <Hyperlink>=Globals!ReportServerUrl 
                    &amp; "/reportserver?" 
                    &amp; replace(Globals!ReportFolder, " ", "+")
                    &amp; "/Snapshot+Report"
                    &amp; "&amp;rs:Command=Render&amp;rs:ParameterLanguage=en-AU&amp;rc:Parameters=false"
                    &amp; "&amp;ReportSegment=Dealer" 
                    &amp; "&amp;ReportRegion=National" 
                    &amp; "&amp;ReportDate=" &amp; Code.URLEncode(Format(Parameters!ReportDate.Value, "yyyy-MM-dd")) 
                    &amp; "&amp;ReportIntermediaryGroup=" &amp; CStr(Fields!GroupIntermediaryNo.Value)
                    &amp; "&amp;ReportNumberOfMonthsToShow=3"
                    &amp; "&amp;ReportIntermediaryState=National"
                    &amp; Fields!ParameterIntermediaryList.Value</Hyperlink>
                </Action>
            </Actions>
        </ActionInfo>
        <Style>
            <Border>
                <Style>None</Style>
            </Border>
            <BackgroundColor>=iif(ReportItems!txtRowGroupBackgroundFormat.Value = 1, Code.ColourPalette("row-highlight"), Nothing)</BackgroundColor>
            <PaddingLeft>2pt</PaddingLeft>
            <PaddingRight>2pt</PaddingRight>
            <PaddingTop>2pt</PaddingTop>
            <PaddingBottom>2pt</PaddingBottom>
        </Style>
    </Textbox>
    <rd:Selected>true</rd:Selected>
</CellContents>

```