How Create Custom DataGridViewColumn
Mar 19, 2010I use VB 2008,I need to create DateTime DataGridview Column..how create Custom DataGridview Column with using DateTimePicker
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Custom DataGridViewColumn Properties?
Jun 21, 2010I created a custom datagridview column for a progressbar and included customizable color properties but I can't get them to work right. After compiling, the properties show up correctly in the Edit Columns popup editor, but changing the values has no effectThe designer generated code shows the original values and manually changing them there has the desired effect(I know you're not supposed to, just testing). Here is the code for the column even though I don't think the issue is stemming from any coding errors there.
Imports System.Drawing
Imports System.ComponentModel
Imports System.Drawing.Drawing2D
[code].....
Custom DataGridViewColumn - Error: 'Public Event ItemCheck(sender As Object, E As System.Windows.Forms.ItemCheckEventArgs)'
Jan 19, 2012following code from c# to visual basic, and I'm coming up with the following error: 'Public Event ItemCheck(sender As Object, e As System.Windows.Forms.ItemCheckEventArgs)' as an event, and cannot be called directly. Use a 'RaiseEvent' statement to raise an event.
[Code]...
Create A Custom Messagebox, With Varying Number Of Buttons With Custom .Text Descriptions?
Feb 6, 2009This is what I would like to achieve:To create a custom messagebox, with varying number of buttons with custom .Text descriptions, and other features. I intended to have a property array that would be redim-ed and have values (.Text values) set by the calling class:
[code]...
Specify A Custom Icon For Display In The Toolbox Window When Create Own Custom Control?
Dec 29, 2011how to specify a custom icon for display in the toolbox window when you create your own custom control? Something other than the dreaded "gearbox" icon.
View 2 RepliesCreate A Custom File Association ( A Custom Extension ) In VB?
Dec 19, 2010know how to create a custom file association ( a custom extension ) in VB .Net and how to open it on the application
View 1 RepliesDataGridViewColumn Iteration Speed?
Jun 13, 2012I have noticed that when iterating DataGridViewColumns, the speed is greatly reduced if the columns are visible.
For Each col As DataGridViewColumn In cData.DataGridView.Columns
col.Visible = visible
Next
If visible is set to false (and all columns are all currently visible), iterating 264 columns takes around 0.35s, however, if visible is set to true (and all columns are currently invisible), the same process takes around 30s.Does anyone know what would be causing the extra time?Could it something internal to the DataGridView Control?
DataGridViewColumn Auto Generated Code?
Feb 25, 2011I created a custom datagridview. In the constructor of that datagridview, I set
Me.AutoGenerateColumns = False
and then, declared and added 4 DatagridViewImageColumns and 140
DatagridViewTextBoxColumns by the code
...
Dim dvgCol as New DataGridViewImageColumn
[code]....
But when I add an instance of that datagridview onto a form, in the form.design.vb there are many code defines for each columns and then sometimes adds additional code to create those columns again. Sometime when I delete the datagridview control in the form,that code is not deleted.
Get Unique FormattedValues From DataGridViewColumn Using LINQ?
Jun 12, 2012I am building an application that contains several DataGridViews that may have 100-20,000 rows displayed with a DataTable as its DataSource.When the user wants to filter a column they right-click the DataGridView Column Header and a ContextMenuStrip shows a small DataGridView that displays all the unique values in that column. I currently get all the unique values using a loop which is slow (shown below).[code]...
View 3 RepliesVS 2005 DataGridViewColumn.DataPropertyName Question?
Sep 9, 2009I have a datagridview that I am dynamically building columns for, adding them to the datagridview, and then attaching a dataset. The dataset has more than one table. What sort of syntax should I use to specify the datatable column that the DataGridViewColumn needs to look for in the dataset
View 4 RepliesCreate Custom Database In Windows Application - Double Click Custom Database File?
Jul 21, 2006With VB.net, I'm coding a simple application to get more used to the new .Net format.
I'd like to save all the information to a 'new' database file. how to create a database on the fly, once that is done i'll be able to connect to it no problem, but actually creating the file is proving difficult to work/find out.
Also, with vb.net and the newly created custom file, how can it be made to automatically open that information with the program?
Is there a method in installation to associate the file type with the new program? How can i check when the program loads if a database file has been 'double-clicked' (rather than just running from the .exe of the program) and proceed to load the data?
EDIT1 - Extra InfoThe windows application has many different fields and content etc, then i need to save that to a file that could later be loaded by 'double clicking'. I assumed the easiest way would be to create a mini-database for each unique file
VS 2008 Dinamic Datagridviewcolumn Item - Any Chance A Column Is Set To Be A Textbox Initially?
Aug 28, 2010I am working with a datagridview. Is there any chance a column is set to be a textbox initially but for example I want the top item to be a combobox??? This should enabled the user to select something of the list but also load in what was selected and saved before... So for example I have a column called Product Name and it has 5 rows 4 of them should appear as textboxes but one top cell should appear as combobox
View 2 RepliesCreate A Button That Can Create Custom Enteties?
Feb 7, 2009I am not a new coder, but i am not a know-it-all. I have been watching some of those NVidia fluid videos, and got jealous. I thought "Why can't i do it?" I'm not good enough for OpenGL or some other 3d engine, but i thought i would try it in 2d.
View 4 RepliesCreate A Custom Class That Has Inside An Array Of Another Custom Class?
Jan 31, 2011I want to create a custom class that has inside an array of another custom class (see my code below) but when the programm runs is crashes. Why? What is the right expression???? Plz help I'm a newbie in VB.net.....
Public Class ctrarray
Public nameclass As String
Public ctrlindex(glvar_spaces) As ctrlindexclass
End Class
[code]....
Multithreading - Create Custom Objects/list Of Custom Objects In .NET?
Jan 24, 2010I need two seperate lists, which every item is Integer, String, Bitmap - and one which every item is Integer, String String. However I don't know how to do this, or even where to look - I've googled for custom objects and custom object lists. What I'm trying to do is this.Custom Object1 is Integer, String, Bitmap Custom Object2 is Integer, String, String
In one thread I'll be adding items to List1(Of Object1), and processing them, and adding the results to List2(Of Object2), however I need to be able from other threads to look at the list and say only give me the items where Integer = (my thread ID), is this possible? Any help, or even links to information that would be relevant to this request would be helpful?
Create A Custom Language?
May 16, 2011So I know this will end up being a hard task, but I want to figure out how to do it. My language won't be outrageously sophisticated. Here is an example of what it'll do[code]...
View 9 RepliesCreate A Custom Validator In VB?
Feb 15, 2012I just have this program that validates if the selected file is an excel file, and I want this to have a separate function for validation so I can use that function to other program
View 13 RepliesCreate Custom Byte In Net?
May 7, 2011I am creating a WCF in vb.net inside VS 2010. I have a handful of properties that are currently bytes (0 - 255) and represent different test scores. Is it possible for me to create my own type based on this that will only allow values between 0 and 110?[code]...
View 2 RepliesCreate Custom Combobox ?
Mar 4, 2012I want to create ComboBox that looks like this:
I have all the images needed for this set. where should I begin to create something similar?
Create Custom Dialog Box
Aug 5, 2010I'm creating an stock management application. At times I want to be able to search for a customer, location, or institution. I know how to do all of this, but what I really nee dot figure out is:How do I create/design a function that calls a form and has the user query information and then return that query's data, preferable datatable.Now, I've created the form that does all this and I have the dataTable but now I want to have a function that can call this "query form" and return that data.I was thinking I have to do something with multi-threading but maybe I'm just looking over something obvious. The best analogy of what I want to do is to create a custom dialog box, but obviously instead of returning a simple integer I'd be returning a dataTable.
View 5 RepliesCreate Custom Events In .net?
Nov 21, 2011I have created a control in vb.net. Now I want that control to send some message(fire an event called recieve) and the parent application that implements it will have to create an even listener called recieve and do actions accordingly.
View 3 RepliesHow To Create Custom 'links'
Apr 12, 2012I searched several keywords but could not find a good tutorial on how to create custom 'links'. My goal is for my apps to be able to handle special links inside of Outlook. The link will cause my app to display the proper info when it is clicked.
View 3 RepliesHow To Create Custom Control
Sep 28, 2007I am new in .net framework 2.0. I have to create a custom control. How to create it?
View 7 RepliesHow To Create Custom Controlls
Jul 31, 2011My game is an old-school RPG. The most importand issue I have is that I want to create custom form controlls for the player and the NPC's, however althought I can create a class for e.g. the player.I have been using pictureboxes so far but they aren't as convenient as a custom form controll would be.
View 2 RepliesHow To Create Custom DataGridView Row
Feb 5, 2009I have a DGV with several columns in it displaying some data. I want to be able to have certain rows in the DGV act as category headers to provide separation of the data. The category header should be a row that has one column that extends the full width of the DGV. How can I create this mix of single & multicolumn rows within the same DGV?
View 2 RepliesHow To Create Custom Events
Feb 11, 2011Is it possible to create my own event in vb.net .
I need an event for WindowState = Normal.
How To Create Custom Language
Dec 13, 2009So I know this will end up being a hard task, but I want to figure out how to do it. My language won't be outrageously sophisticated. Here is an example of what it'll do:
public.Block main()
def Tex01 as ImageFile =->file->load("C:userspicture.png")
Tex01->recolorable = true
[code].....
How To Create Custom UI / Controls
Mar 19, 2011I would like to expand my knowledge of VB.NET and was looking at creating custom user interfaces or custom controls. The type of things I am thinking of is: [URL]s. How are those controls created? I imagine it involves using the existing controls in Visual Studio as a starting point, and altering them to suit your design?
View 2 RepliesC# - Create An Extended (custom) Property With EWS?
Aug 17, 2010I have created a little demo application which is able to create a meeting request by using the Exchange WebService (EWS). I would also like to add some custom properties to this item but up to now I have only found examples which use the Exchange Managed API, which I won't use. There must be a way to create these properties by only using EWS... Does anybody know how and can provide a little code example?
View 1 RepliesCreate A Custom FTP Server For An Application?
Jun 10, 2010As i am trying to create a custom FTP server for an application i've been reading up on this for a while. One part of the problem is obviously the multi threading issue.Now i know that the synclock command will lock an object to the thread that requested it's lock, however in an example on the internet i found the following construction and i am wondering why he would do this.
Code:Private Sub ProcessClient( NewClient As Client )Call SendMessage( "530 Acces Denied", NewClient.ControlSocket) more codeEnd Sub Private Sub SendMessage(ByVal message As String, ByVal ToSocket as Socket)Dim CurrentThread As Thread = Thread.CurrentThread SyncLock CurrentThreadToSocket.Send(Message)End SyncLockEnd Sub Now ProcessClient is a thread that is trying to do some stuff with a newly connected client and SendMessage is just a sub in the same class as where the thread was created. Now normally one would synclock a "syncobject" however here he calls a sub and then from that sub he synclocks to the thread that called it. I wonder what the use of that is and why he does it this way?
I have removed the synclock statement and as I expected it functions exactle the same as it does with it. I tested it with multiple users at the same time trying to connect to it.