How To Extend DataGridView Component

Dec 4, 2009

How to extend existing components in Visual Studio 2005 to add my own features and functionality. For example, I want to extend datagridview control to include my own extra features.

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Extend A DataGridView ComboBox Column's Edit Control By A Second Tiny Button?

Jul 12, 2011

I insert DataGridViewComboBoxColumn columns in a DataViewGrid. That works fine.

Now, I want the user to be able to not only select one list item, but to "drilldown" into the list that is behind the combobox, allowing him to edit (insert/delete/update) the list.

I think it would be a good idea to display a ".." button right behind the dropdown button of the combobox. Pushing it leads to a dialog where the list can be maintained.

What I am stumbling upon is:

How would I create such a custom combobox? Is ComboBox (which is the base for the combo box that the combo box column creates as its edit control) open enough to accommodate such an additional button? What would be the container of the tiny buttoon -- the ComboBox descendant? How I would make the grid create and handle such a custom combobox?

I currently try to solve this by subclassing DataGridViewComboBoxColum, using a DataGridViewComboBoxCell descendent in its CellTemplate assignment, and overriding PositionWEditingPanel and PositionEditingControl to manipulate the sizes of the panel and the combobox so I'd have space for the tiny button. Is that the correct way?

Or would I have to create a DataGridViewColumn descendant which creates a Panel containing a DataGridView combobox edit control and the tiny button? How would I make sure the column keeps care of the combo box so it has the correct items etc?

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Clean Elegant Solution To Form-class Level Component Collection Initializing Before Initialize Component?

Feb 3, 2011

I am converting an old Vb6 solution to .net 2.0 in vs2010. I've been working in C# for about 3 years now and .net for 5. I don't recall having this problem in C#, but if I want initialize a readonly collection of DerivedControlFoo Is there a clean way to do it besides creating a sub to do it all off somewhere else? I'd love to be able to do it at the class level at the declaration for readability and simplicity.

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Create A DLL Component For Database Operation And Use Created Component In Another Project

Mar 1, 2010

Create a DLL component for database operation and use created component in another project. Required methods, events and properties

a. Connect
b. Add
c. Delete
d. Save
e. Record navigation (first, next, previous, last)
f. Properties for all database fields
g. Events for validation of database fields.

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C# - Change A Component Name In A Component Designer In WinForms .Net

Jan 8, 2010

I've created a component whose name I'd like to be able to change while editing in the component tray. I've added a Designer action for a name property, but now I'm stuck.

Looking at the property grid, I can see that the name property is parenthesised, indicating that it's not a regular property.

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Possible To Extend Stream From 128 To 256

Jan 17, 2010

about the id3 tags.can be possible to extend the stream from 128 to 256.some parts of the title is missing

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Extend A Textbox Class

Nov 12, 2009

I have a couple of bits of code I add to a textbox in my codebehind on form.If I wanted to extend this class or somehow create a shared instance of this code so I can pass in the parameters for text to display in textbox and use in any of my forms.. [code]

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Extend On Class Size

Oct 24, 2009

i've tried to extend on the default class size, but couldn't do so. example


why is it that there is no such thing as size when im sure that i could create a new size(x, y)

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Extend Program So It Has Subtraction As Well?

Oct 15, 2009

Remember this from before?


Since you are repeating same operation three times it is best to make a function for it.


labels 1-6 are randomly generated numbers, text boxes 1-3 are the input boxes and the code above shows how if the answer in the textbox equals the labels added together, you win. This code works -

I have created labels 7-12 now, and textboxes 4-6. How can I extend this program so it has subtraction as well?

If this problem definition isn't detailed enough, let me know and I'll add more detail to this description.

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Extend The Function Class?

Oct 31, 2009

is there any way to extend upon a procedure itself?like i want to be able to do the following

public sub test()

end sub and it should popup a string, let's say "cool", plus i shld be able to use special() in every single sub but if we call special() from a function it should be rejected. how can that be done?

also, we should also be able to do the following

public sub test()

end sub whereby specialvariable is accessible by every sub.

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Extend Upon An Existing Interface?

Nov 6, 2009

is there anyway to extend upon an existing Interface? i'm just wondering.

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How To Extend DLL Search Path

Aug 30, 2010

I reference several 3rd party libraries in my application. I want to put all of these libraries in a folder that is different than where the executable file for my application is located. I would also like to put all of the libraries that are required by the 3rd party libraries (but not referenced by my application) in this same folder.

I need to be able to put the application (and the referenced libraries) on a thumb drive and run the application from any computer without any installation or registering of components. This condition is satisfied if I put all of the required libraries in the same folder as the executable.

For example, if my application is located at E:MyApp then I would like to store all of the 3rd party libraries in the folder E:MyAppDlls. Any way to store all (or at least some) of the libraries in a separate folder?

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Forms :: WebBrowser Component And Table - Transform This Text Organized As Table Into DataGridView?

Dec 15, 2010

Let's say, I have something like a table in the WebBrowser component, it's not actually a table, because the data organized in flash, but, it's organized like a table, it has like rows and columns. You can see more in the attached file. Can I transform this text organized as table into DataGridView or some another tool that serves as table. like_a_table.JPG

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Extend A ComboBox To Support Commands?

May 26, 2010

As topic says, I need to extend the features of a standard Silverlight ComboBox to also support Commanding. Since I follow MVVM I need my ComboBox to communicate the SelectionChanged event to my ViewModel.What would the code look like for doing this? I want to be able to put the Command attribute on my ComboBox XAML control.

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Extend Aero Non-Client Area In .NET?

Jan 22, 2012

I am trying to get the result when you extend the non-client area in Windows Aero?

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Extend The Functionality Of The ToolTip Control ?

Nov 26, 2009

I need to extend the functionality of the ToolTip control...Problem: I need to show some introductionary instructions to my users the first time they see a new form based feature in my app. Something along the lines of: '...Welcome to the blah, blah, blah feature. To do this, click that, mouse here, press that so on and so forth...'

Then I want a 'Don't show this again' check box somewhere near the bottom so the 'welcome screen' can be supressed. Currently I'm thinking of loading an app wide form (Public Dim frmMyToolTip as frmToolTip) and using it's .TopMost property to ensure that when I show it, it appears over my modal form (I can Hide/Show at will.) Also without a caption or border, my users can't move it.

As it will be displayed on top of a Modal form, I need a Background worker component to run a timer which will hide the form after a set period. I can store the state of the CheckBox to stop the form from showing next time if user does not require it.

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VS 2005 Extend The MyApplication Object?

Jun 10, 2009

Is it possible to extend the MyApplication object - either through inheritance or by using a partial class - so as to add custom properties?

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Extend Class Definition Across Multiple Files?

Feb 10, 2010

In order to organize various methods of my MainForm class, I would like to categorize them into several files. Of course, the methods would still need to access form elements and additional variables I added in the MainForm class.

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Extend Duration Show Time For Tooltip?

Jul 28, 2011

The maximum value that works for AutoPopDelay property of ToolTip is 30 seconds (30000 milliseconds). Any values greater than this maximum will be defaulted to 5 seconds (5000 milliseconds).[url]...

How to set to extend the duration show time for ToolTip? or alway show until the mouse leave the control?

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Extend Session Time When There Are Multiple Forms?

Jun 28, 2010

How to extend the session time. There are many form in my application like parent and child forms. So how can I make pop up to appear when session times out and the pop up should appear on the form where the user is currently in, when popup comes I have to disable all forms like(they should be transparent (i.e) user should NOT be able to edit them).

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Stop Users From Changing Date To Extend Trial?

Aug 8, 2011

Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If My.Settings.registered = True Then


This is my code for a trial application. The code is pretty basic but what i couldn't figure out was how i would be able to prevent users from changing the date to extend the trial ("error" i would be getting).

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VS 2008 Aking DLL's For Software To Extend Its Function List?

Nov 5, 2009

Has anyone ever used Game Maker 7?

I was wondering, if anyone had any information on making DLL's for this software to extend its function list.

View 2 Replies - Somthing._Default Is Not Allowed Here Because It Does Not Extend Class 'System.Web.UI.Page'

Jul 23, 2010

This has got to be one of the most frustrating issues with I first got the error parser error cannot load default and as I have done before checked if the naming was correct in th bin folder and made the changes accordingly. Now I get the following error:

somethiing._DEfault is not allowed here because it does not extend class 'System.Web.UI.Page'

where something is the name of the project in the properties. I have the following code in Default:

Namespace FormDiscovery
Partial Class _Default
Inherits System.Web.UI.Page
Shared settings As New System.Configuration.AppSettingsReader


Now I have deleted the project and other in the solution and created a new one and still this error and if I take the 'something' name away I get the cannot load default error.

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C And C++ - Function - Extend It So That It Also Returns A Usable Array Of Pointers To Some Structures

Feb 18, 2009

Correct the problems with this function, and then extend it so that it also returns a usable array of pointers to some structures.

The extended version of this function should: Maintain the same "char *" return type which returns a pointer to a usable, for storing a C string, memory buffer.

In addition, also return a usable array of pointers to structures. This array of pointers is of variable and random length, which must be obtained using GetNumberOfSomeSeqsToGenerate(), which is called, ONLY, from within this new extended version of the function.

The type of these structures and the function that should be used to get these structures are defined as follows:

typedef struct {
char* name; /* '\0'-terminated C string */
int number;
} SomeSeq;


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.net - Write A .NETCF Partial Class To Extend System.Windows.Forms.UserControl?

May 28, 2010

I'm writing a .NET CF (VBNET 2008 3.5 SP1) application, which has one master form, and it dynamically loads specific UserControls based on menu click, in a sort of framework idea. There are certain methods and properties these controls all need to work within the app. Right now I am doing this as an Interface, but this is aggravating as all get up, because some of the methods are optional, and yet I MUST implement them by the nature of interfaces.


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Extend My Interval Timer Timer To Include Hours In Addition To Minutes And Seconds?

Aug 2, 2010

What I need to do to make this code work for hours as well?[code]...

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Extend Primitive Types Such As System.String And System.Int32?

Jul 25, 2010

Is it possible to extend primitive types such as System.String and System.Int32 (IE: integer) in .Net 4 and if so how?

To be more specific, I am aware of the concept of partial classes but this doesnt seem to be the answer. Also I find that System.String is not inheritable and Int32 is a structure.

Lastly I am interested in knowing both a VB.Net and C# answer to the above question.

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Extend Activity Class And PreferenceActivity Class At Same Time?

Apr 8, 2011

I want to have my main class for creating activity for 2 different flags.

1) One with relative layout Textview and images for which I am extending my class as[code]...

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Extend Glass To Program That Not Using Glass Like Zune Software V 1?

Jun 23, 2009

how to extend glass to program that not using glass like Zune software V 1.

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Using A COM Component With ASP.Net?

Jan 15, 2010

I'm trying to use a registered COM component in my ASP.Net web application. The application is written in VB.Net. I've added a reference to the Com component using the IDE.

Here's the

Dim physicalToken As New PhysicalDevices2.PhysicalToken
Dim physicalTokens As New PhysicalDevices2.PhysicalTokens


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