SSIS - How To Pass Parameter Value In OLE DB Source in SSIS Package

Scenario: 

Let's say we have to create a SSIS Package in which we  need to extract data from one of the table but only for date provided in the variable.

Solution: 

I created a table and inserted few records so we can use in our SSIS Package. Here is script to create table and insert records

CREATE TABLE dbo.TblSource (
    CountryName VARCHAR(50)
    ,Sale INT
    ,SaleDate DATE
    )
GO

INSERT INTO dbo.TblSource
VALUES ('USA',100,'2013-07-10')
GO
INSERT INTO dbo.TblSource
VALUES ('Mexico',200,'2013-07-11')
GO
INSERT INTO dbo.TblSource
VALUES ('Brazil',300,'2013-07-11')


Step 1: 
Create Variable with name Dt  in SSIS Package as shown below
Create variable in SSIS Package so we can use in OLE DB Source

Step 2:
In Data Flow Pane bring OLE DB Source and write query and then map parameter as shown in below
How to map variable in OLE DB Source in SSIS Package

Final Output : 
Set the variable Dt to the date you want to pass as parameter to your query in OLE DB Source, In our example we passed 2013-07-11 and we can see the results by using Data Viewer. In real time you will be connecting your OLE DB Source directly to your destination. I used Multicast Transformation just for testing purpose.
How to use SQL Query in OLE DB Source with Parameter in SSIS Package