I created a com dll using Vb .net 2005. One of my classes inherits from System.Collections.CollectionBase. The methods of CollectionBase, such as Count and clear are not visible/usable to the program that references the dll. How do I make those methods/properties visible?
<ComClass(ReportCollection.ClassId, ReportCollection.InterfaceId, ReportCollection.EventsId)> _
Public Class ReportCollection
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Is there a way to hide a method of a base class that has been inherited?Lets say the base class has the properties:
x
y
Height
Width
and the method
sub SpecialInstructions()
Now this class is inherited by some classes that either use the SpecialInstructions method or override it. But one class inherits it but cant make use of the method and therefore wants to hide it. I tried shadowing but it still seems that the method is visible ex
Private Shadows Sub SpecialInstructions()
i created a user control and inherited a textbox.is it possible to remove some of the inherited properties of the user control?like to Multi-Line, PasswordChar etc also at the Form Design, when selecting the user control, there's an arrow on the upper-right which i also want to remove.
View 2 Replieson the custom inherited control i created, i noticed that when i bind my custom property to a data column, if that data column returns a value other than Null it always return a datarowstate of modified even if there were no changes. don't make any changes to the current record before you go to the next record. you will see that the rowstate will still return Modified.
View 8 RepliesI want to know how to create our own file, such as: (.Docx). If we opened the file in notepad the characters contained in the that's file could not understand, so i would like to know by what method of making the it's file? Is the file created and use encryption method or what?
View 7 RepliesInterface makes sure a class does have a Method / Property, However is there a way to create an unInterface, making sure that the class does not have a method / property or is there a way to implement something that will unimplement every other implements except for itself?
what i want to do: i've got a class that serves as a storage for information only, so i decided to give it a blank interface IBank, the other classes that share this feature will implement this interface. they should not implement any other interface the use is that when i seek out the interface of a class and realise that its IBank i know that its just a class for info storage.
I would like to make a method excute right before the user get back controle of the program. No matter what chain of events happens i would like to beable to have a method is always the last thing to excute. I plan on using the method to check the form and the data on it. I have no issues righting the method, I just don't know if their is a event or some other way to make sure it is always the last thing to excute. (Sorta like a validation method) Is their an easy way to do this?
View 5 RepliesWith reference to my previous thread on Paint event handler.. [URL] I went to read up more on Paint Event Handler.. I have a button which draw out a path based on the user selection.. Below contains the drawing of the path portion of the button click event code
[Code]...
However It did not activate the paint event when I clicked on the button.. Instead, the paint event still activate even before I click on the button? So can anyone teach me on how to activate the paint event when I click on a button?
I have a base form and I inherit other forms from it. However, if i go back and change say the size of the base form, I don't see those changes take effect in my inherited forms. Does anyone know why that is? Is there a solution to this issue?So as far as design is goes, what exactly gets inherited by other forms?
View 9 RepliesI working on a project that includes to call a certain type of method to each control, i have this
Private Sub txtBcNum1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtBcNum1.KeyPress
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This code works like a charm if i want to allow only numbers and backspace on my textbox.Problem: I have 15 textboxes( txtBcNum1,txtBcNum2,....,txtBcNum15 ), what's the best way to call this function inside KeyPress method on each textboxes with out manually adding it to KeyPress method?
i have taken some Group Boxes and Panels within my form,
as mentioned now i want to make just transparent these containers
i mean it(container) just hide itself and illustrates its controls and also
it's background containing form.Mohammad Arif Mustafa arif_mustafa@live.com
how do i make i VB .net application/tool (any sort of) like a professional one, for eg. if my tool is doing some task when i click a button which takes say 1-2 mins. , then during that phase my app should not look like it's hung (plain white window) if you know what i mean . All i'm asking is the logic for keeping my front end viewable & refreshed (possibly wit ha progressbar) while something carried out in background which takes couple of mins.
View 2 RepliesI have took a little research, but I couldn't find the answer. I am looking for code that when I input the textbox something like in the first letter "a,b,c,d,e or whatever it goes", find the match of the listview items that come with the same text property of the textbox while hide the unmatched listview items.
However, I used this:
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
Dim i As Integer
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Public Class HotelReservation
Dim currRec As Integer
Dim totalRec As Integer
Dim dt As New DataTable
Dim cmd As New OleDb.OleDbCommand("SELECT * from Reservation", conn)
Dim da As New OleDb.OleDbDataAdapter(cmd)
Dim ds As New DataSet
[Code]...
I am a student of PGDCA. making a project of LIBRARY MANAGEMENT SYSTEM IN VB.NET 2005 VERSION.
View 4 RepliesI have developed a windows application using visual studio 2005 (vb) . I am done with my development and want to roll this out to my colleagues.
I have created executable file (exe) when i was using vb6 but i am not sure of how to do it here in Visual studio 2005.
I'd like to make blank datetimepicker in vb.net. how to? User doesn't like to see any date if it's not checked.
View 1 RepliesI remember seeing a tutorial a while ago about making your application check online for updates..I did this a year or two ago but have since lost my example. Can someone explain how you do this or supply me with a link if you know a good tutorial?
View 20 RepliesI'm making a anti hack for a game, and i want to kick one that is connected on game and deny it from connect again.
View 2 RepliesHow do I make a new playlist and play it in Windows Media Player from VB 2005? This is what I have thus far. I do not know how to dimension "player":
Imports System.IO
Imports wmplib
Public Class Form1
Dim Playlist As IWMPPlaylist = Nothing
[code]....
I'd like to make a custom control that allows the end user to format the text, similar to an HTML or RichText control. The idea is that it will be static like a label, but allow end user to specify certain tags around words to make them bold, italic, underline, hyperlink, etc, either at design time or runtime. My question more specifically is how to best approach this. My intention is to use GDI+ methods, like DrawString, etc. But my concern is the inefficiency of having to parse the text each Paint cycle to determine which tags are present in order to use the correct font style, etc. I'm not really asking HOW to do this, but more of a hint on which architectural approach to take on this. Maybe there is already some examples of this out there?
View 2 RepliesConsider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:
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I am using the DGV to display some data, and it is read-only, and I do not want the user to be able to select any rows - i.e. it is not necessary or desired to show a particular row with the blue selection highlight. Internet searches point to the use of the SetSelectedRowCore method of the DGV, but this is a "Protected" method.
View 1 RepliesI have a dll name "infrServ.dll" and I need to list all the public methods/functions that can be used. How can I do that? I know it's with Reflexion but I don't know how to use it.
View 5 RepliesI have loaded a picture in PICTUREBOX1 by this command Me.PictureBox1.Image = Drawing.Image.FromFile("D:C2007BITMAPSpict.jpg")
How to store this picture SQL server 2005 table1's IMAGE column?
I do not want to store image path in table. I want to store picture in image column in any format.
Reason: If I run my project to some other computer that has not images'path stored in database.Then images will be displayed by image field of database.
just created a classlibrary project named CreatingDll and i did this
Public Class Class1
Public Function getComboTable() As DataTable
Dim dt As New DataTable
[code]....
I have a piece of code that would be greatly reduced if a variable can be used instead of the actual method. (I am using a structure) kinda like the difference between the following code.
srrMulti.mthChildProp1.varRecall = strVarRecall
subPageRef
srrMulti.mthChildProp2.varRecall = strVarRecall
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I'm developing a class in which most of the properties need to be updatable, but also protected against being inadvertently updated. I've got some code that does this, but I'm not happy with it. What I have is:
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Some users are experiencing crashes in VS2005 when completing a method name using Intellisense. I've captured a crash dump and here's the stack trace of the thread I think that's causing the issue.
View 3 RepliesI created a reporting utility for my users to view, send (via email), export SSRS reports. I have set up date parameter boxes with calendar drop down and they are able to send via email a URL link that would either display the report via ReportViewer or send a link that would let then view the report in Excel or PDF. This is working just fine. Now I just added a button for adding new email addresses and a new windows form with a textbox for entering the email address and a command button for Save Email Address. I get an error msg Quote: Objects added to a BindingSource's list must all be of the same type.[code]
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