Initializing help system before first use

# Action Group

An Action Group is the container that holds one or more VDL Actions.

It is triggered by `vdl-event` using the name of the Action Group prefixed with the `actions` namespace.

## Action Group containing one action

View Designer
Code editor

    <script>
        function demo1Fn() {
            insight.getView().showInfoMessage('demo1Fn() called.');
        }
    </script>

    <vdl-action-group name="demo1">
        <vdl-action command="demo1Fn"></vdl-action>
    </vdl-action-group>

    <button class="btn-primary" vdl-event="click:actions.demo1">Demo1</button>

## Action Group containing two actions

In this example, the second actions is triggered after the first one returns.

View Designer
Code editor

    <script>
        function demo2_1Fn() {
            return insight.getView().showInfoMessage('demo2_1Fn() called.');
        }
        function demo2_2Fn() {
            return insight.getView().showInfoMessage('demo2_2Fn() called.');
        }

        </script>
        <vdl-page>
            <vdl-header draggable="true">
                <vdl-action-group draggable="true" name="demo2">
                    <vdl-action command="demo2_1Fn"></vdl-action>
                    <vdl-action command="demo2_2Fn"></vdl-action>
                </vdl-action-group>
            </vdl-header>
            <vdl-section heading="ActionGroup">
                <vdl-row>
                    <vdl-column size="12">
                        <vdl-button vdl-event="click:actions.demo2" label="Demo"></vdl-button>
                    </vdl-column>
                </vdl-row>
            </vdl-section>
        </vdl-page>

Note: If an error is thrown in the code that the VDL Action calls then no further Actions are triggered.

## Calling Actions from a Separate Action Group

VDL Actions operate using an input value and return a result value. The result value can then be used as the input for a second VDL Action. The result of the first vdl action is passed to the next action as a third parameter `val`. In this example, the vdl actions in the action group are called in sequence; The return from the first action is used as an input in the second; The third vdl action returns the result.

View Designer
Code editor

    <script>
            function demo6_1Fn(val) {
                return 99;
            }

            function demo6_2Fn(vm, evt, val) {
                return val * 8;
            }
        </script>
        <vdl-page>
            <vdl-header draggable="true">
                <vdl-action-group draggable="true" name="demo6">
                    <vdl-action command="demo6_1Fn"></vdl-action>
                    <vdl-action command="demo6_2Fn"></vdl-action>
                    <vdl-action command="demo1Fn"></vdl-action>
                </vdl-action-group>
            </vdl-header>
            <vdl-section heading="ActionGroup">
                <vdl-row>
                    <vdl-column size="12">
                        <vdl-button vdl-event="click:actions.demo6" label="Demo"></vdl-button>
                    </vdl-column>
                </vdl-row>
            </vdl-section>
        </vdl-page>

Parent Topic Using VDL Actions

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