The SSRS Report Parameters allows the users to enter a specific value in the textBox and then, it will filter the Report data using the user-specified value. OR Report Parameters enables the users to Filter the SSRS Reports Dynamically.
In this article, we will show you how to add Report parameters in SSRS or SQL Server Reporting Services with an example.
We are going to use the below-shown report to explain, SSRS Report parameters in Reports. Please refer to Table Report article to understand the creation of SSRS Table report. If you observe the below screenshot, It was a normal Table report with Country, Full Name, Occupation, Yearly Income, and Sales Amount columns.

The below screenshot will show you the Shared Data Source and Dataset we used for this report.

SQL Command we used in the above screenshot is:
SELECT Geo.[EnglishCountryRegionName] AS [Country] ,Geo.[StateProvinceName] AS [State] ,Geo.[City] ,Cust.FirstName +' '+ Cust.LastName AS [Full Name] ,Cust.EnglishEducation AS Education ,Cust.EnglishOccupation AS Occupation ,SUM(Cust.YearlyIncome) AS YearlyIncome ,SUM(Fact.SalesAmount)AS SalesAmount FROM DimCustomer AS Cust INNER JOIN FactInternetSales AS Fact ON Cust.CustomerKey = Fact.CustomerKey INNER JOIN [DimGeography] AS Geo ON Cust.GeographyKey = Geo.GeographyKey GROUP BY Geo.[EnglishCountryRegionName] ,Geo.[StateProvinceName] ,Geo.[City] ,Cust.FirstName ,Cust.LastName ,Cust.EnglishEducation ,Cust.EnglishOccupation ORDER BY [Country]
Adding SSRS Report Parameters
To add SSRS Report Parameters, Right Click on the Parameters Folder present in the Report Data tab will open the Context Menu to select Add parameters.. option.

Once you click on Add parameters.. option opens a new window called Report parameter Properties to configure the parameter properties in SSRS.
- Name: Please specify the valid Parameter name as per your requirement. Here, we defined it as CountryParameter
- Prompt: The text you specified here will display as a label before the text box
- Data Type: Country name is a Text data type so, we kept the default text unchanged

Click Ok to finish configuring the Report parameters in SSRS. Now, We have to apply filter condition on the Dataset. Please refer to Filter at Dataset Level article to understand the creation of Filters.
Select the Dataset from the Report data tab, and right-click on it will open the context menu. Please select the Dataset Properties.. option from it

In this SSRS report parameters example, We are going to display the records whose [Country Name] is equal to [Country Parameter] we just created. So, Please select the Country as Expression and Operator as Like Operator and Value as Parameter name.
If you find any difficult to write the parameter name, Please click on the fx button and select the parameter name from the GUI.

Click Ok to finish configuring the Filters at Dataset Level. Let’s click on the Preview Tab to preview the SSRS Report Parameters Data.

From the above screenshot, you can observe that It is displaying a Blank Report with Empty Textbox on Top. To view the records, we have to enter the Country Name in that Textbox and Press Enter.
For now, We are entering Germany as Country Name.

NOTE: If we exactly know the Parameter values (Country Names in this example), then there will be no problem. How about remembering 100 Employee Names or Product Names?. In these situations, We have to use Drop Down List parameters.