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Problem: Show MapTips checkbox is grayed out

Description

The check box 'Show MapTips (uses primary display field)' on the Display tab of Layer Properties can be grayed-out for layers whose data source is in shapefile format.

Cause

The shapefile is not spatially indexed.

Solution or Workaround

Follow the steps below:

  1. In ArcMap, remove the layer in which the 'Show MapTips' check box is grayed-out.
  2. Start ArcCatalog.
  3. Locate and right-click on the shapefile. Click Properties.
  4. Click Indexes tab.
  5. Click the Add button.
  6. Click OK or Apply.
  7. Add the shapefile back into ArcMap. The 'Show MapTips' check box is enabled.