QgsFieldValuesLineEdit class

A line edit with an autocompleter which takes unique values from a vector layer's fields.

The autocompleter is populated from the vector layer in the background to ensure responsive interaction with the widget.

Base classes

class QgsFilterLineEdit: QLineEdit subclass with built in support for clearing the widget's value and handling custom null value representations.

QgsFieldValuesLineEdit(QWidget* parent = nullptr): Constructor for QgsFieldValuesLineEdit.

auto attributeIndex() const -> int: Returns the attribute index for the field containing values shown in the widget.
auto layer() const -> QgsVectorLayer*: Returns the layer containing the field that values will be shown from.
void setAttributeIndex(int index): Sets the attribute index for the field containing values to show in the widget.
void setLayer(QgsVectorLayer* layer): Sets the layer containing the field that values will be shown from.

void attributeIndexChanged(int index): Emitted when the field associated with the widget changes.
void layerChanged(QgsVectorLayer* layer): Emitted when the layer associated with the widget changes.

Parameters
parent	parent widget

Returns the attribute index for the field containing values shown in the widget.

Returns the layer containing the field that values will be shown from.

Sets the attribute index for the field containing values to show in the widget.

Parameters
index	index of attribute

Sets the layer containing the field that values will be shown from.

Parameters
layer	vector layer

Emitted when the field associated with the widget changes.

Parameters
index	new attribute index for field

Emitted when the layer associated with the widget changes.

Parameters
layer	vector layer