How to use CompareOperator Validator to compare value between two others values

Question

I need to compare date in textbox between today N-1 and today. For example 19/02/15, date should be between 19/02/14 and 19/02/15 (sorry, date format FR)

For greater than (year-1) is ok:

txtDate.ValueToCompare = DateTime.Today.AddYears(-1).AddDays(-1).ToShortDateString(); txtDate.CompareOperator = CompareOperator.GreaterThanEqual;

How can I check that not greater than today?

Thanks in advance.

EDIT:

I tried this but not work:

 RangeValidator rv = new RangeValidator(); rv.ControlToValidate = txtDate.ClientID; rv.Type = ValidationDataType.Date; rv.MinimumValue = DateTime.Today.AddYears(-1).AddDays(-1).ToShortDateString(); rv.MaximumValue = DateTime.Today.ToShortDateString(); rv.SetFocusOnError = true;

tezzo · Accepted Answer · 2015-02-19 14:05:24Z

1

In ASP.NET you can also use a RangeValidator that checks whether the value of an input control is within a specified range of values.

As stated in MSDN documentation please remember that if you specify ValidationDataType.Date for the BaseCompareValidator.Type property without programmatically setting the culture for the application, you should use a culture-neutral format, such as YYYY/MM/DD, for the MaximumValue and MinimumValue properties. Otherwise, the date may not be interpreted correctly.

edited Feb 19, 2015 at 14:05

answered Feb 19, 2015 at 11:04

tezzo

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5 Comments

TimeIsNear Over a year ago

Thanks I tried RangeValidator but it not work (see edit post)

tezzo Over a year ago

Answer updated with a note regarding MinimumValue and MaximumValue. If it doesn't solve your problem please give me more details.

TimeIsNear Over a year ago

That still not work, I think because the textbox will accept only FR date format (dd/mm/yyyy). Even if I use: rv.MinimumValue =DateTime.Now.ToString("yyyy/MM/dd");

tezzo Over a year ago

If you need only one RangeValidator declare it via designer and set at runtime only its .MinimumValue/.MaximumValue (using Page_Load with IsPostBack = False). I try with a TextBox that accepts IT date format (dd/mm/yyyy) and everything is ok using your code to calculate minimum/maximum value.

tezzo Over a year ago

Maybe you simply forget to add rv to your page controls; also using .ClientID instead of .ID seems not correct to me. When it's possible I usually put every controls that I need via designer to avoid these little problems.

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