473,657 Members | 2,534 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Help: C# PropertyGrid, Int Properties and TypeConverters

20 New Member
I have a number of Int32 properties that I want to display in a PropertyGrid control. The problem I have is that I want to be able to bypass the framework's default validation. If you have an Int32 property, delete the text within the propertygrid cell, then the default validation error window appears. I want to modify the value to zero if no value is entered.

I notice that the ConvertTo/ConvertFrom methods return objects.. which Int32 isn't.. How can I achieve what I want - can I still use a TypeConverter or not?

Thanks
Paul
Jul 26 '07 #1
0 1207

Sign in to post your reply or Sign up for a free account.

Similar topics

3
6041
by: Dave Girvitz | last post by:
I have a PropertyGrid (Windows Forms App) based component that uses TypeConverters to generate ranges of acceptable values for properties. The idea was that I could download the key/value pairs from a database and manipulate the TypeConverters dynamically. The property grid then displays the property with a drop down list. It does work when I open the application for the first time. If, however, I open the form and then open a second...
1
2160
by: James Divine | last post by:
Greetings all, I am using a PropertyGrid control in my application and I'm having trouble finding documentation on it. I have my basic PG built and can add Properties of standard types (int, bool, string)... but I need to know how to add more complex Properties (like other classes). One example that I would like to replicate is the Font dialog window that you get when you click the Font Property for a standard windows Form. I want to...
4
5687
by: Zoury | last post by:
Hi! Is it possible to use the PropertyGrid control without bind it to a control? As if it were a standard list? I would like to add "properties" in it but i never know what it will be. For now I use a DataGrid with 2 columns in it where the first one as the ReadOnly property property set to true.. it's quite ugly. if it's impossible then i'm open to any suggestions. :O)
2
3972
by: Mevar81 | last post by:
Hi to everybody.I have a problem with the PropertyGrid control.I want to display not all the properties of a generic Control(Button,TextBox,ComboBox,ecc.).In general I don't want to display only one category(Appearance, Behavior,ecc.) but I want to chose directly which properties to show.I've read that I can use the SelectedObjects to put an array of object with some properties in common with the SelectedObject,and only properties in...
0
1415
by: micro_bug | last post by:
Now I am developing a tool, just like VS.net Form Edition environment. User can edit a component's properties by a PropertyGrid control. Now I have some questions about this PropertyGrid control: 1. How to verify a property's validifity? as you know, In VS.net, when we input a component name that is same with an existed name in the propertygrid, an error message will pop up: "Invalid property value". Now, my question is, how to implement...
2
1586
by: crow_y2k | last post by:
Hellooo out there... i have a problem with my propertygrid ( who dont have such a problem ;-) ): i want to programm a small app to easy edit a .ini file. i thought that a property grid would be a nice solution for that. so i load the file structure ( CIniFile, CIniSection, CIniOption ) and bind the CIniFile to the PropertyGrid. So far so good. Now i want to
0
1526
by: movieknight | last post by:
Hi, I have a class which I am feeding to the propertygrid, and I am exposing a Mesh object from my class for the propertygrid to display. I want the propertygrid to show the values (when you expand the property) and allow those values to be edited. My code is below. The grid is showing the values but they are read-only, although the other properties for the rest of my class are editable. Public Class MeshConverter
3
4348
by: =?Utf-8?B?U3RldmVU?= | last post by:
Is it possible to hide a row within a PropertyGrid based upon the boolean value of another row within the PropertyGrid? I am using VS2005 with .NET Frameworks 2.0. -- ----------- Thanks, Steve
4
5446
by: Rohan | last post by:
I need to use the Collection editor of the propertyGrid, but i can't this to work, i looked around on the NET on collection and I am kinda lost. i have this so far, i don't know what i should do next Thank you Public class frmColor Dim xColors As New myColors
0
8324
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
8842
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
8740
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
8516
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8617
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
7353
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
0
5642
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
4173
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
2
1733
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.