Use the following code snippet and enter "8,5" in RadMaskedEditBox. Then press Tab to navigate to the next control:
RadValidationRule validationRuleNumberLess;
RadValidationRule validationRuleNumberGreater;
float numberMaximum;
float numberMinimum;
public RadForm1()
{
InitializeComponent();
CultureInfo culture = new System.Globalization.CultureInfo("de-DE");
System.Threading.Thread.CurrentThread.CurrentCulture = culture;
System.Threading.Thread.CurrentThread.CurrentUICulture = culture;
this.radMaskedEditBox1.Culture = culture;
this.numberMaximum = float.Parse("9,999", culture);
this.numberMinimum = 0;
// set maximum
this.validationRuleNumberLess = new RadValidationRule();
this.validationRuleNumberLess.AddControl(this.radMaskedEditBox1);
this.validationRuleNumberLess.Operator = Telerik.WinControls.Data.FilterOperator.IsLessThanOrEqualTo;
this.validationRuleNumberLess.PropertyName = "Value";
this.validationRuleNumberLess.ToolTipTitle = "Too big";
this.validationRuleNumberLess.ToolTipText = "The value must be SMALLER than " + this.numberMaximum.ToString();
this.validationRuleNumberLess.Value = (float)this.numberMaximum + 0.001D;
this.radValidationProvider1.ValidationRules.Add(this.validationRuleNumberLess);
this.radValidationProvider1.SetValidationRule(this.radMaskedEditBox1, this.validationRuleNumberLess);
// set minimum
this.validationRuleNumberGreater = new RadValidationRule();
this.validationRuleNumberGreater.PropertyName = "Value";
this.validationRuleNumberGreater.ToolTipTitle = "Too small"; // this.localToolTipTitle;
this.validationRuleNumberGreater.ToolTipText = "The value must be BIGGER than " + this.numberMinimum.ToString();
this.validationRuleNumberGreater.Operator = Telerik.WinControls.Data.FilterOperator.IsGreaterThanOrEqualTo;
this.validationRuleNumberGreater.Value = (float)this.numberMinimum;
this.validationRuleNumberGreater.AddControl(this.radMaskedEditBox1);
this.radValidationProvider1.ValidationRules.Add(this.validationRuleNumberGreater);
this.radValidationProvider1.SetValidationRule(this.radMaskedEditBox1, this.validationRuleNumberGreater);
this.radLabel1.Text = "Minimum = " + this.validationRuleNumberGreater.Value + " Maximum = " + this.validationRuleNumberLess.Value;
}
Workaround: use the ControlValidation event to control the validation flag: https://docs.telerik.com/devtools/winforms/controls/validation-provider/validation-rules#controlvalidation-event
Hello, Roman,
Following the suggested approach for using the ControlValidation event in the previously referred section in the online documentation, I have prepared a sample code snippet to illustrate in a better way the idea behind the workaround.
You can add a RadValidationRule for empty Text for example and in addition to this handle the ControlValidation event which occurs before a RadEditorControl is being validated. The RadValidationEventArgs gives very useful information about the tooltip error indication, validation rule, etc. The IsValid argument allows you to override the default result indicating whether the validation fails and change the error message accordingly. The rest of the rules shouldn't be added in this case:
float numberMaximum;
float numberMinimum;
public RadForm1()
{
InitializeComponent();
CultureInfo culture = new System.Globalization.CultureInfo("de-DE");
System.Threading.Thread.CurrentThread.CurrentCulture = culture;
System.Threading.Thread.CurrentThread.CurrentUICulture = culture;
this.radMaskedEditBox1.Culture = culture;
this.radMaskedEditBox1.MaskType = MaskType.Numeric;
this.radMaskedEditBox1.Mask = "N";
this.numberMaximum = float.Parse("9,999", culture);
this.numberMinimum = 0;
RadValidationRule radValidationRule1 = new RadValidationRule();
radValidationRule1.AutoToolTip = true;
radValidationRule1.AddControl(this.radMaskedEditBox1);
radValidationRule1.Operator = Telerik.WinControls.Data.FilterOperator.IsNotLike;
radValidationRule1.PropertyName = "Text";
radValidationRule1.ToolTipText = "Text is empty!";
radValidationRule1.Value = "";
radValidationProvider1.ValidationRules.Add(radValidationRule1);
this.radLabel1.Text = "Minimum = " + numberMinimum + " Maximum = " + numberMaximum;
this.radValidationProvider1.ControlValidation += RadValidationProvider1_ControlValidation;
}
private void RadValidationProvider1_ControlValidation(object sender, RadValidationEventArgs e)
{
if (e.Control == this.radMaskedEditBox1 && this.radMaskedEditBox1.Text != string.Empty)
{
e.IsValid = true;
float value = 0;
bool parsed = float.TryParse(this.radMaskedEditBox1.Text, out value);
if (value>= numberMaximum)
{
e.ErrorText = "The value must be SMALLER than " + this.numberMaximum.ToString();
e.IsValid = false;
}
else if (value<numberMinimum)
{
e.ErrorText = "The value must be BIGGER than " + this.numberMinimum.ToString();
e.IsValid = false;
}
}
}
I believe that it would fit your scenario. Should you have further questions please let me know.
Regards,
Dess | Tech Support Engineer, Principal
Progress Telerik