React TreeMap Events
This section describes events fired by this widget.
click
Raised when a node is clicked or tapped.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
|
jQueryEvent |
Use 'event' instead. The jQuery event that caused the handler execution. Deprecated in favor of the event field. |
|
event | Event (jQuery or EventObject) |
The event that caused the handler execution. It is a dxEvent or a jQuery.Event when you use jQuery. |
node |
The clicked node; described in the Node section. |
disposing
Raised before the widget is disposed of.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
Main article: onDisposing
See Also
drawn
Raised when the widget's rendering has finished.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
drill
Raised when a user drills up or down.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
|
node |
The Node object. |
exported
Raised after the widget is exported.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
Main article: onExported
See Also
exporting
Raised before the widget is exported.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
|
fileName |
The name of the file to which the widget is about to be exported. |
|
cancel |
Allows you to prevent exporting. |
|
format |
The resulting file format. One of PNG, PDF, JPEG, SVG and GIF. |
Main article: onExporting
See Also
fileSaving
Raised before a file with exported widget is saved to the user's local storage.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
fileName |
The name of the file to be saved. |
|
format |
The format of the file to be saved. |
|
data |
Exported data as a BLOB. |
|
cancel |
Allows you to prevent file saving. |
Main article: onFileSaving
See Also
hoverChanged
Raised after the pointer enters or leaves a node.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
|
node |
The node whose hover state has been changed; described in the Node section. |
Main article: onHoverChanged
See Also
incidentOccurred
Raised when an error or warning occurs.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
|
target | any |
Information on the occurred incident. |
Main article: onIncidentOccurred
See Also
initialized
Raised only once, after the widget is initialized.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
Main article: onInitialized
See Also
nodesInitialized
Raised only once, after the nodes are initialized.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
|
root |
The root node; described in the Node section. |
Main article: onNodesInitialized
See Also
nodesRendering
Raised before the nodes are displayed and each time the collection of active nodes is changed.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
|
node |
In most cases, the root node. When drilling down, the node of the highest displayed level. |
Main article: onNodesRendering
See Also
optionChanged
Raised after a widget option is changed.
Event
Information about the event.
Name | Type | Description |
---|---|---|
name |
The modified option if it belongs to the first level. Otherwise, the first-level option it is nested into. |
|
model |
The model data. Available only if you use Knockout. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
component |
The widget's instance. |
|
fullName |
The path to the modified option that includes all parent options. |
|
value | any |
The modified option's new value. |
Main article: onOptionChanged
See Also
selectionChanged
Raised when a node is selected or selection is canceled.
Event
Information about the event.
Name | Type | Description |
---|---|---|
component |
The widget's instance. |
|
element |
The widget's container. It is an HTML Element or a jQuery Element when you use jQuery. |
|
model |
The model data. Available only if you use Knockout. |
|
node |
The node whose selection state has been changed; described in the Node section. |
Main article: onSelectionChanged
See Also
If you have technical questions, please create a support ticket in the DevExpress Support Center.