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Add Basic Min/Max Value Input Validation to C1NumericEdit

Background:

It is a very common use-case to need to enforce a minimum and maximum value for a numeric input box. This article will show you how to add basic min/max value validation without code using the designer and in-code programmatically as well.

Steps to Complete (Designer):

  1. Select your C1NumericEdit control in the designer view and then set the PostValidation > Validation property to ValuesAndIntervals. Set the validation type for your C1NumericEdit control to ValuesAndIntervals:

  2. Open the PostValidation > Intervals collection by clicking the … button:

  3. Click “Add” to add a new member to the collection and then customize the properties of that member however you like to suit the needs of your project:

That’s it! You should now have a C1NumericEdit that will accept values between your specified interval.

Steps to Complete (Code):

Note: Replace any instances of c1NumericEdit1 with the name of your C1NumericEdit control.

  1. Set the validation type for your C1NumericEdit control to ValuesAndIntervals:

    c1NumericEdit1.PostValidation.Validation = C1.Win.C1Input.PostValidationTypeEnum.ValuesAndIntervals;
  2. Add an interval in the form of an array to the ValueInterval collection:

    c1NumericEdit1.PostValidation.Intervals.AddRange(new C1.Win.C1Input.ValueInterval[] {
                    new C1.Win.C1Input.ValueInterval(
                        //Minimum value
                        new decimal(new int[] {1/*this should be your min value*/,0,0,0}), 
                        //Maximum value
                        new decimal(new int[] {100/*this should be your max value*/,0,0,0}),
                        //Include minimum
                        true, 
                        //Include maximum
                        true)
                });

That’s it! You should now have a C1NumericEdit that will accept values between your specified interval.

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