dashboard-16135-winforms-dashboard-winforms-designer-create-dashboards-in-the-winforms-designer-data-analysis-dashboard-parameters.md
Dashboard Parameters are dynamic values that can replace constants in expressions, calculated fields, etc. You can also use dashboard parameters to filter a SQL data source dynamically.
The following topics describe how to work with dashboard parameters.
Create Dashboard ParametersDescribes how to add and configure a dashboard parameter.Create Cascading ParametersDescribes how to create cascading parameters.Reference Dashboard ParameterShows where the dashboard parameters can be used.Specify Dashboard Parameter Values in Dashboard DesignerDescribes how to change the dashboard parameter values in the UI and in code in Dashboard Designer.Specify Dashboard Parameter Values in Dashboard ViewerDescribes how to change the dashboard parameter values in the UI and in code in Dashboard Viewer.
The following demo contains two dashboard parameters: From date and To date. The dashboard parameters allow you to change the trading period and to display data from this period.
To change the values of the dashboard parameters, open the Dashboard Parameters dialog. To open the dialog, click the Parameters button in the dashboard title.
The demo below contains the Seasons multi-value dashboard parameter. Select one or several values from the drop-down list in the Dashboard Parameters dialog to see the corresponding data.