Allow clearing heatmap weighting field

Fixes #20256
qgis · May 23, 2020 · 3961fa2 · 3961fa2
1 parent 50b3f0c
commit 3961fa2
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/gui/symbology/qgsheatmaprendererwidget.cpp b/src/gui/symbology/qgsheatmaprendererwidget.cpp
@@ -101,6 +101,7 @@ QgsHeatmapRendererWidget::QgsHeatmapRendererWidget( QgsVectorLayer *layer, QgsSt
   mRadiusUnitWidget->setUnits( QgsUnitTypes::RenderUnitList() << QgsUnitTypes::RenderMillimeters << QgsUnitTypes::RenderPixels << QgsUnitTypes::RenderMapUnits
                                << QgsUnitTypes::RenderPoints << QgsUnitTypes::RenderInches );
   mWeightExpressionWidget->registerExpressionContextGenerator( this );
+  mWeightExpressionWidget->setAllowEmptyFieldName( true );
 
   if ( renderer )
   {