I have a simple report that keeps throwing the "index was out of range" error when i try to preview the report in VS. when i deploy the report to SSRS, it works perfectly. I've thoroughly looked for an answer already but none of them seem to apply to my situation.
Error: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index.
<?xml version="1.0" encoding="utf-8"?>
<Report xmlns="http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition" xmlns:rd="http://schemas.microsoft.com/SQLServer/reporting/reportdesigner">
<Body>
<ReportItems>
<Textbox Name="textbox1">
<CanGrow>true</CanGrow>
<KeepTogether>true</KeepTogether>
<Paragraphs>
<Paragraph>
<TextRuns>
<TextRun>
<Value>Sales Report</Value>
<Style>
<FontFamily>Tahoma</FontFamily>
<FontSize>20pt</FontSize>
<FontWeight>Bold</FontWeight>
<Color>SteelBlue</Color>
</Style>
</TextRun>
</TextRuns>
<Style />
</Paragraph>
</Paragraphs>
<rd:DefaultName>textbox1</rd:DefaultName>
<Height>0.36in</Height>
<Width>7.5in</Width>
<Style>
<PaddingLeft>2pt</PaddingLeft>
<PaddingRight>2pt</PaddingRight>
<PaddingTop>2pt</PaddingTop>
<PaddingBottom>2pt</PaddingBottom>
</Style>
</Textbox>
<Tablix Name="Tablix1">
<TablixCorner>
<TablixCornerRows>
<TablixCornerRow>
<TablixCornerCell>
<CellContents>
<Textbox Name="Textbox5">
<CanGrow>true</CanGrow>
<KeepTogether>true</KeepTogether>
<Paragraphs>
<Paragraph>
<TextRuns>
<TextRun>
<Value>Sales Person</Value>
<Style />
</TextRun>
</TextRuns>
<Style />
</Paragraph>
</Paragraphs>
<rd:DefaultName>Textbox5</rd:DefaultName>
<Style>
<Border>
<Color>LightGrey</Color>
<Style>Solid</Style>
</Border>
<PaddingLeft>2pt</PaddingLeft>
<PaddingRight>2pt</PaddingRight>
<PaddingTop>2pt</PaddingTop>
<PaddingBottom>2pt</PaddingBottom>
</Style>
</Textbox>
</CellContents>
</TablixCornerCell>
</TablixCornerRow>
</TablixCornerRows>
</TablixCorner>
<TablixBody>
<TablixColumns>
<TablixColumn>
<Width>1.35417in</Width>
</TablixColumn>
</TablixColumns>
<TablixRows>
<TablixRow>
<Height>0.25in</Height>
<TablixCells>
<TablixCell>
<CellContents>
<Textbox Name="Textbox4">
<CanGrow>true</CanGrow>
<KeepTogether>true</KeepTogether>
<Paragraphs>
<Paragraph>
<TextRuns>
<TextRun>
<Value>=SUM(Fields!Amount.Value * Fields!ExchangeRate.Value)</Value>
<Style>
<Format>0.##</Format>
</Style>
</TextRun>
</TextRuns>
<Style />
</Paragraph>
</Paragraphs>
<rd:DefaultName>Textbox4</rd:DefaultName>
<Style>
<Border>
<Color>LightGrey</Color>
<Style>Solid</Style>
</Border>
<PaddingLeft>2pt</PaddingLeft>
<PaddingRight>2pt</PaddingRight>
<PaddingTop>2pt</PaddingTop>
<PaddingBottom>2pt</PaddingBottom>
</Style>
</Textbox>
</CellContents>
</TablixCell>
</TablixCells>
</TablixRow>
</TablixRows>
</TablixBody>
<TablixColumnHierarchy>
<TablixMembers>
<TablixMember>
<Group Name="Year">
<GroupExpressions>
<GroupExpression>=Fields!Year.Value</GroupExpression>
<GroupExpression>=Fields!Month.Value</GroupExpression>
</GroupExpressions>
</Group>
<SortExpressions>
<SortExpression>
<Value>=Fields!Year.Value</Value>
</SortExpression>
</SortExpressions>
<TablixHeader>
<Size>0.28125in</Size>
<CellContents>
<Textbox Name="Year">
<CanGrow>true</CanGrow>
<KeepTogether>true</KeepTogether>
<Paragraphs>
<Paragraph>
<TextRuns>
<TextRun>
<Value>=MonthName(Fields!Month.Value, True) & " " & Fields!Year.Value</Value>
<Style>
<Format>0.##</Format>
</Style>
</TextRun>
</TextRuns>
<Style />
</Paragraph>
</Paragraphs>
<rd:DefaultName>Year</rd:DefaultName>
<Style>
<Border>
<Color>LightGrey</Color>
<Style>Solid</Style>
</Border>
<PaddingLeft>2pt</PaddingLeft>
<PaddingRight>2pt</PaddingRight>
<PaddingTop>2pt</PaddingTop>
<PaddingBottom>2pt</PaddingBottom>
</Style>
</Textbox>
</CellContents>
</TablixHeader>
</TablixMember>
</TablixMembers>
</TablixColumnHierarchy>
<TablixRowHierarchy>
<TablixMembers>
<TablixMember>
<Group Name="RowGroup">
<GroupExpressions>
<GroupExpression>=Fields!SalesPerson.Value</GroupExpression>
</GroupExpressions>
</Group>
<TablixHeader>
<Size>1.26042in</Size>
<CellContents>
<Textbox Name="SalesPerson">
<CanGrow>true</CanGrow>
<KeepTogether>true</KeepTogether>
<Paragraphs>
<Paragraph>
<TextRuns>
<TextRun>
<Value>=Fields!SalesPerson.Value</Value>
<Style />
</TextRun>
</TextRuns>
<Style />
</Paragraph>
</Paragraphs>
<rd:DefaultName>SalesPerson</rd:DefaultName>
<Style>
<Border>
<Color>LightGrey</Color>
<Style>Solid</Style>
</Border>
<PaddingLeft>2pt</PaddingLeft>
<PaddingRight>2pt</PaddingRight>
<PaddingTop>2pt</PaddingTop>
<PaddingBottom>2pt</PaddingBottom>
</Style>
</Textbox>
</CellContents>
</TablixHeader>
</TablixMember>
</TablixMembers>
</TablixRowHierarchy>
<DataSetName>SalesLines</DataSetName>
<Top>0.42944in</Top>
<Height>0.53125in</Height>
<Width>2.61459in</Width>
<ZIndex>1</ZIndex>
<Style>
<Border>
<Style>None</Style>
</Border>
</Style>
</Tablix>
</ReportItems>
<Height>0.96069in</Height>
<Style />
</Body>
<Width>8in</Width>
<Page>
<PageHeight>8.5in</PageHeight>
<PageWidth>11in</PageWidth>
<LeftMargin>1in</LeftMargin>
<RightMargin>1in</RightMargin>
<TopMargin>1in</TopMargin>
<BottomMargin>1in</BottomMargin>
<Style />
</Page>
<AutoRefresh>0</AutoRefresh>
<DataSources>
<DataSource Name="Reporting">
<DataSourceReference>Reporting</DataSourceReference>
<rd:SecurityType>None</rd:SecurityType>
<rd:DataSourceID>aab21363-546f-4445-8789-9975de5d56bf</rd:DataSourceID>
</DataSource>
</DataSources>
<DataSets>
<DataSet Name="SalesLines">
<Query>
<DataSourceName>Reporting</DataSourceName>
<CommandText>SELECT SalesPerson, exchangeRate, Amount, Year(PostingDate) AS [Year], Month(PostingDate) AS [Month] FROM [dbo].[ReportingSalesLines]
WHERE PostingDate BETWEEN '2012-10-01' AND '2013-09-30'</CommandText>
<rd:UseGenericDesigner>true</rd:UseGenericDesigner>
</Query>
<Fields>
<Field Name="ExchangeRate">
<DataField>exchangeRate</DataField>
<rd:TypeName>System.Decimal</rd:TypeName>
</Field>
<Field Name="SalesPerson">
<DataField>SalesPerson</DataField>
<rd:TypeName>System.String</rd:TypeName>
</Field>
<Field Name="Amount">
<DataField>Amount</DataField>
<rd:TypeName>System.Decimal</rd:TypeName>
</Field>
<Field Name="Year">
<DataField>Year</DataField>
<rd:TypeName>System.Int32</rd:TypeName>
</Field>
<Field Name="Month">
<DataField>Month</DataField>
<rd:TypeName>System.Int32</rd:TypeName>
</Field>
</Fields>
</DataSet>
</DataSets>
<Language>en-US</Language>
<ConsumeContainerWhitespace>true</ConsumeContainerWhitespace>
<rd:ReportUnitType>Inch</rd:ReportUnitType>
<rd:ReportID>7d9922c6-e37f-4826-b58e-bd8b9427da1c</rd:ReportID>
</Report>
I've seen this happen when a DataSet has changed its definition but the actual cached data stored by Visual Studio (i.e. the *.rdl.data file) still has data based on the old Dataset definition; this is in internal error caused by the mismatch between the data the report is expecting and what has been cached.
To resolve this, delete any *.rdl.data files from the report solution then try previewing again.
This is why the report works fine when deployed - the report is generating new data when run so there is no mismatch with any cached data.
A Rebuild Solution command in VS may also be required.