Angular Material 8/7 | Check/ Uncheck Checkbox List with Indeterminate state using MatCheckboxModule

Checking/ Unchecking a list of items with checkboxes is provided with a master checkbox to provide ease to users to control all list items. Angular Material Checkbox module MatCheckbox proves very handy in creating such lists with a number of properties.

In Material Checkbox module there are three states with Checked and Unchecked which are common, but there is also a third state called Indeterminate which is a middle of these two. Indeterminate Checkbox state indicates that some of the list items are checked but not all. It is indicated with a hyphen (-) in the checkbox.

Here we will create a list of items with a master checkbox using which a user can check to uncheck all item lists. Also if a user checks some of the items but not all, the master checkbox will show Indeterminate state which is very easy to implement.

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