How can pass variable or parameter in DATA READER SOURCE ising ADO:NET Connection manager

In SSIS in Sql task we have option to pass parameter or variable..But in Data Flow Task when we use Data Reader Source using ADO.NET connection..There is no option to pass parameter or variable Or no option to receive a parameter or variable .

I am having a query were it need to pass a parameter.in sql task ...And Data Reader Source have to receive this parameter from sql task .

Sql Task finds a value of parameter and pass to DataReader Source in DataFlow Task .. ...

Please can any one help me to solve this problem of Receiving parameter or variable in DataReader Source using DAO.Net connection in DataFlow Task..thank you dilsa

USe an expression to override SQLCommand porperty of the data reader:

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