BindValue to Another Column

• We want the ToDate column to automatically change to the value of the FromDate column when ever the value of the FromDate column changes.
• To do that we'll bind the value of the ToDate column to the value of the FromDate column, using the BindValue method
• Review the first overload of the BindValue method
• Note that it receives a parameter of type TypedColumnBase<Date> which means any DateColumn

public class DemoLocalColumns : UIControllerBase
{
    public readonly DateColumn FromDate = new DateColumn("From Date");
    public readonly DateColumn ToDate = new DateColumn("To Date");
    public DemoLocalColumns()
    {
        ToDate.BindValue(FromDate);
    }
    public void Run()
    {
        Execute();
    }
    protected override void OnLoad()
    {
        View = () => new Views.DemoLocalColumnsView(this);
    }
} 

• TypedColumnBase<Date> means a column of type DateColumn
• TypedColumnBase<Time> means a column of type TimeColumn
• TypedColumnBase<Number> means a column of type NumberColumn
• TypedColumnBase<Bool> means a column of type BoolColumn
• TypedColumnBase<Text> means a column of type TextColumn

See TypedColumnBase Power Point Presentation

For a deeper discussion of these topics see Lambda Expressions Generics and BindValue

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