Home > propertygrid error > propertygrid error message

Propertygrid Error Message

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up PropertyGrid validation up vote 2 down vote favorite 1 I have a PropertyGrid. When I enter a bad-format value (i.e. - a string into an integer item), I get an error message. If I click "OK", the bad value stays until I change it. If I click "Cancel", the original value is back. I want to control the buttons so clicking "OK" will also set the original value back instead of showing the bad value like the cancel button. How can I do that? c# winforms validation propertygrid share|improve this question edited Apr 22 '14 at 13:05 huMpty duMpty 9,42483270 asked Apr 22 '14 at 12:09 TamarG 1,20031744 3 I can't help but ask: why? –Crono Apr 22 '14 at 12:11 1 You'd have to write your own TypeConverter and catch the problem in its ConvertFromString() method. This is where the value of using PropertyGrid rapidly starts to diminish, when you see yourself wanting to change its default behavior then it is time to create your own data entry form. –Hans Passant Apr 22 '14 at 14:14 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote I'll join @Crono on that, why do you want that what you want? If you would ask how can I remove that dialog, then I could answer use own TypeConverter: public class IntConverter : TypeConverter { public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { return true; } public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { return true; } public override object ConvertFrom(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value) { if(value is string) { // try parse to int, do not throw exception } return 0; // always return something } public override object ConvertTo(ITy

Studio 2015 products Visual Studio Team Services Visual Studio Code Visual Studio Dev Essentials Office Office Word/Excel/PowerPoint Microsoft Graph Outlook OneDrive/Sharepoint Skype Services Store Cortana Bing Application Insights Languages & platforms Xamarin ASP.NET C++ TypeScript .NET - VB, C#, F# Server Windows Server SQL Server BizTalk Server SharePoint Dynamics Programs & communities Students Startups Forums MSDN Subscriber downloads Sign in Search Microsoft Search Windows Dev Center http://stackoverflow.com/questions/23219139/propertygrid-validation Windows Dev Center Explore Why Windows What’s new for Windows 10 Intro to Universal Windows Platform Dev Center Benefits Develop for accessibility Build for enterprise Docs Windows apps Get started Design and UI Develop API reference Publish Monetize Promote Games Get started UI design Develop Publish Desktop Get started Design https://social.msdn.microsoft.com/Forums/windows/en-US/fa180d07-9c1f-4125-981b-b4ea783cd451/propertygrid-how-to-catch-an-exception?forum=winforms Develop API reference Test and deploy Compatibility Windows IoT Microsoft Edge Windows Holographic Downloads Samples Support Dashboard Explore Why Windows What’s new for Windows 10 Intro to Universal Windows Platform Dev Center Benefits Develop for accessibility Build for enterprise Docs Windows apps Get started Design and UI Develop API reference Publish Monetize Promote Games Get started UI design Develop Publish Desktop Get started Design Develop API reference Test and deploy Compatibility Windows IoT Microsoft Edge Windows Holographic Downloads Samples Support Dashboard Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove From My Forums Answered by: PropertyGrid: How to catch an exception? Windows Forms > Windows Forms General Question 0 Sign in to vote I use a PropertyGrid to show a business object in my application. The business object throws exceptions if the user tries to enter an invalid string inside th

Sign in Pricing Blog Support Search GitHub This repository Watch 24 Star 93 Fork 45 objorke/PropertyTools Code Issues 42 Pull requests 3 Projects 0 Wiki Pulse Graphs New https://github.com/objorke/PropertyTools/issues/61 issue Prevent invalid data from being assigned to the property #61 Open http://www.databaseforum.info/5/1101923.aspx aldinei-sampaio opened this Issue Apr 30, 2015 · 2 comments Projects None yet Labels PropertyGrid Milestone No milestone Assignees No one assigned 2 participants aldinei-sampaio commented Apr 30, 2015 I have some validations I need to do in my properties, like: Required (should not be null or empty propertygrid error string) Regex (entered text must follow a predefined regex pattern) Range (max and min values for numeric properties) I successfully managed to configure my class as the PropertyGrid validates and displays error messages for all of those conditions. However, I had not found a way to prevent the PropertyGrid from assigning the invalid values to the property. Example: In the "DataAnnotations" example of PropertyGridDemo, propertygrid error message there is a property nammed "RequiredString". If I delete the contents of the textbox, the PropertyGrid shows the error message, but the empty string was already assigned to the property. That's easy to reproduce as follows: In the TestBase class, add this method: protected void RaisePropertyChanged(string propertyName) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } And in the TestDataAnnotations class, change this code: [Required(AllowEmptyStrings = false, ErrorMessage = "A value is required.")] public string RequiredString { get; set; } For this: private string _requiredString; [Required(AllowEmptyStrings = false, ErrorMessage = "A value is required.")] public string RequiredString { get { return _requiredString; } set { if (value != _requiredString) { _requiredString = value; RaisePropertyChanged("RequiredString"); RaisePropertyChanged("CurrentRequiredString"); } } } public string CurrentRequiredString { get { return _requiredString; } } Now, when the user clears the contents of "RequiredString" textbox, the "CurrentRequiredString" textbox is also cleared. objorke added the PropertyGrid label May 5, 2015 Owner objorke commented May 5, 2015 Isn´t the current behavior consistent with the standard behavior for validations based on System.ComponentModel.DataAnnotations? Isn´t it better to handle this on the model side than in the PropertyGrid? aldi

Controls and Databinding, PropertyGrid - How do I display a custom error message - different from "Property value is not valid" Top Hi I have implemented a PropertyGrid that displays a list of properties from my own implementationof a ICustomTypeDescriptor. I have the TypeConverters and UITypeEditor working fine. Now I am trying to limit values entered into a property to a value between 1 and 10. I am able to check for the value range within the TypeConverter's CanConvertFrom method and throw an exception from within that message. Throwing the exception from that method displays the standard message box with the title"Property Window" and the message "Property value is not valid". What I want to do instead is to display my own message box which displays text like "The value should be in the range 1 and 10". Anyone - Any idea how I would go about doing this I appreciate any pointers related to this. Regards, Windows Forms5 tkerns Posted: Windows Forms Data Controls and Databinding, PropertyGrid - How do I display a custom error message - different from "Property value is not valid" Top What code does CanConvertFrom have that throws the exception Tony athadu Posted: Windows Forms Data Controls and Databinding, PropertyGrid - How do I display a custom error message - different from "Property value is not valid" Top I have coded ConvertFrom to throw exceptions intentionally. But the message that PropertyGrid .NET code display when I tab out of the proeprty field is very generic and is not that intuitive. It shows up with a title bar "Property Window" and the text "Property value is not valid" with a 'Details' button. When I click on the 'details' button, only then does it displays the text from the thrown exception. Instead, I want to display my own message box with different title bar and content. Thank you Tony for your interest and reply. Here is the ConvertFrom method that I have: public override object ConvertFromxx(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value) { if (value == null) { return base.ConvertFrom(context, culture, value); } string strValue = value as string; if (strValue == null) { return base.ConvertFrom(context, culture, value); } if (strValue.Trim().Length == 0) { return null; } object returnObject = null; try { returnObject = base.ConvertFrom(context, culture, value);

} catch (Exception ex)

{ throw new ApplicationException("Cannot convert");

} if ((UInt64)returnObject < minValue || (UInt64)returnObject > maxValue)

{ throw new ApplicationExcepti

 

Related content

propertygrid error

Propertygrid Error p here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of million programmers just like you helping each other Join them it only takes a minute Sign up PropertyGrid validation up vote down vote favorite I have a

propertygrid error handling

Propertygrid Error Handling p Studio products Visual Studio Team Services Visual Studio Code Visual Studio Dev Essentials Office Office Word Excel PowerPoint Microsoft Graph Outlook OneDrive Sharepoint Skype Services Store Cortana Bing Application Insights Languages platforms Xamarin ASP NET C TypeScript NET - VB C F Server Windows Server SQL Server BizTalk Server SharePoint Dynamics Programs communities Students Startups Forums MSDN Subscriber downloads Sign in Search Microsoft Search Windows Dev Center Windows Dev Center Explore Why Windows What s new for Windows Intro to Universal Windows Platform Dev Center Benefits Develop for accessibility Build for enterprise Docs Windows apps Get

propertygrid error icon

Propertygrid Error Icon p CompatibilityCustomer ServiceInstallation Activation LicensingNetwork License AdministrationAccount ManagementContact UsCommunityForumsBlogsIdeasContributionArticle ContributionsScreencastFree Learning Resources You are hereHomeSupport LearningVault ProductsTroubleshooting OverviewGetting StartedLearn ExploreDownloadsTroubleshooting OverviewGetting StartedLearn ExploreDownloadsTroubleshooting To translate this article select a language Bahasa Indonesia Indonesian Bahasa Melayu Malay Catal Catalan e tina Czech Dansk Danish Deutsch German English Espa ol Spanish Fran ais French Italiano Italian Latvie u valoda Latvian Lietuvi kalba Lithuanian Magyar Hungarian Nederlands Dutch Norsk Norwegian Polski Polish Portugu s Brasil Brazilian Portuguese Rom n Romanian Sloven ina Slovak Sloven ina Slovenian Suomi Finnish Svenska Swedish Ti ng Vi t Vietnamese T rk e Turkish Greek