SMART datagrid :: enabledExpression

SMART datagrid v.1 > Classes > ButtonCellRenderer

DataLudi.ButtonCellRenderer.enabledExpression property

Expression which returns enable, disable states of button.

Only in the cell which returns true in the expression during run time, the button will become enable state. In the table below, it has listed variables which can be used in expression.

If set enabledCallback, this property will be ignored.

Defaults to null.

Getter: function enabledExpression(): String
Setter: function setEnabledExpression(value: String)

Table-1 ButtonCellRenderer.enabledExpression variables

Variable	Explanation
value	The field value.
row	The number of grid row.
datarow	The number of data row.
field	The index of data field.
checked	If grid row is checked state, it will be true.
state	The State of data row.

Code -1

    var columns = [{
        name: "column1",
        renderer: {
            type: "button",
            enabledExpression : "value < 10"
        }
    },
    ...
    ];
    grid.setColumns(columns);

Code -2

    $("#changeExpression").click(function () {
        var col = grid.columnByName('column1');
        col.setRenderer({ 
            enabledExpression : "value < 10"
        });
    });

See Also: enabledCallback; Expression; imageUrl; disabledImageUrl

Examples: Image Button Renderer