Dynamic excel connection string

Hi,
I have excel file as source, where the file name can be anything; so to fetch the data from the excel file, I wanted to create a dynamic excel connection string.
So these are the following steps I have followed:
1. For Each Loop:
Step 2:
Step 3: Excel Connection string
Provider=Microsoft.ACE.OLEDB.12.0;Data Source=E:\Product\Marketing__Products___Services.xlsx;Extended Properties="EXCEL 12.0 XML;HDR=YES";
Connection String Expression : @[User::SourceFolder]+ @[User::SourceFile]
And Below is the error I'm getting
TITLE: Microsoft Visual Studio
The component reported the following warnings:
Error at PlanningIT_Service [Connection manager "Excel Connection Manager"]: The connection string format is not valid. It must consist of one or more components of the form X=Y, separated by semicolons. This error occurs when a connection string
with zero components is set on database connection manager.
Error at PlanningIT_Service: The result of the expression "@[User::SourceFolder]+ @[User::SourceFile]" on property "\Package.Connections[Excel Connection Manager].Properties[ConnectionString]" cannot be written to the property. The expression
was evaluated, but cannot be set on the property.
Choose OK if you want to continue with the operation.
Choose Cancel if you want to stop the operation.
BUTTONS:
OK
Cancel

Hi,
*) Make sure file names are retrieved properly:
A.txt if you have Name and extension under Collection tab - > Retrieve file name
A if you have Name only under Collection tab - > Retrieve file name
C:\Users\sathya\Desktop\Source_Folder\A.txt if you have Fully qualified under Collection tab - > Retrieve file name
*) variable property - Set EvaluateAsExpression = True
Try below links for examples:
http://msdn.microsoft.com/en-us/library/ms345182.aspx
http://mikedavissql.com/2013/09/16/loop-through-excel-files-in-ssis/
http://www.allaboutmssql.com/2012/09/sql-server-integration-services-rename.html
sathya - www.allaboutmssql.com ** Mark as answered if my post solved your problem and Vote as helpful if my post was useful **.

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Hello everybody,
My application should do some tests that user choses.
For each test type I should save the database in a file with different name, something like : Report_YYYY_MM_DD_Test_x, without stopping the execution of the application.
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References:
Report Model Connection (SSRS)
Setting Item-Level Permissions on a Report Server
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Thanks,
Katherine Xiong
Katherine Xiong
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