User Guide > Designing and Executing Map > Setting Up Source Data > Defining and Applying Filters to Source Data
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Defining and Applying Filters to Source Data
You can data filters to filter your source data. Filters are EZscript expressions.
To define and apply a filter:
1. In the map file, go to the Sources tab > Define Filters section.
2. Click /download/attachments/23921988/Map_Source_Add_Icon.png?version=1&modificationDate=1484737955069&api=v2 to add a data filter.
The EZscript Expressions window is displayed, where you can define a filter by adding an expression. For example, Records("R1").Fields("State") == "LA"
For more information, see Scripting.
3. After adding the data filter, it appears in the Define Filters section.
4. From the Apply Filters to drop-down list, select one of the following options:
All records - Applies the filter to all the records in the source.
N records - Applies the filter to a specified set of records in the source. When you select this option, where N Equals appears. Type a value. The maximum value is 2147483647.
5. You can also do the following:
To edit a data filter, click the filter and then click /download/attachments/24975457/SelectIcon_WithinField.png?version=1&modificationDate=1487964313321&api=v2.
The EZscript Expressions window is displayed where you can modify the expression.
To delete a data filter, click the filter and then click /download/attachments/24975457/Map_Source_Delete_Icon.png?version=1&modificationDate=1490093920070&api=v2. A message appears asking for confirmation. Click Yes. The filter is removed from the Define Filters section.
To move the order of the data filters:
Click /download/attachments/24975457/Map_Source_UpArrow_Icon.png?version=1&modificationDate=1490823733888&api=v2 to move the data filter up.
Click /download/attachments/24975457/Map_Source_DownArrow_Icon.png?version=1&modificationDate=1490823749816&api=v2 to move the data filter down.
6. Click Save to save the changes.
Last modified date: 08/02/2023