I have a form with a 4 tab tabControl and each tab has multiple components(textboxes,comboboxes, etc). Is there an easy way to make all the components read only depending on who is logged,so in the code. I would still loke to be able to click on each tab to 'see ' the components on each tabPage.
View 3 RepliesI have a problem I was hoping someone might be able to help with please. I am trying to read and interpret a .txt filewhich typically has a data line of the form:I want to be able to split each value, i.e. so I have:
DESCRIPTIONNAME
104.19
6171
[code].....
How can I make a component that resides in the components tray like the Timer? So that you can place them from the toolbox but they are not visible on the form.
View 1 RepliesI'm having a problem how to refresh the aplication so that the tray icons changes when reading a txt file that is actualized in 5 to 5 minutes.
Imports Microsoft.VisualBasic
Module Module1
Public Sub Main()[code].....
In Visual Basic 6:
[var = ] Point(X,Y) would retrieve the Color in Long from an Individual Point on a Form or Picture Box.
Components(TextBox, etc) were indexable into an array under one name.
Is there any manner to do any of this in Visual Basic Express? (I have the 2005 Edition.)
Is it possible to make a program with visual basic 2010 that does not use the actual form but instead only uses other components (e.g. Message Box) to form a complete program?
View 2 RepliesI have a TableLayoutPanel that is 1 column wide. In it, I make UserControls to represent components of a color formula.When a user chooses a formula on the left, I call "TableLayoutPanel.Controls.Clear" and then using the data from the formula, set the number of rows and create X many new user controls in a loop and TableLayoutPanel.Controls.Add them.
The problem is, if one keeps this screen open and selects through roughly 60 to 70 different formulas, eventually, without warning, the program will crash in an unhandled exception: Error creating window handle. (There is no debugger breakpoint)What's causing this? Is it a disposal problem? Should I be doing something other than TableLayoutPanel.Controls.Clear? Would you handle building the objects differently? I'm including a screenshot of the screen in question (you can see the usercontrols vertically on the right) and the error box that comes up.
I have 2 text boxes one for email and one for Name. If text is entered in email I want to make Name required field. How can I do this using .net validation controls?
View 1 RepliesI would like to know how would i make a histogram go up and down depending on the value in the textbox.
View 1 RepliesHow can i make a control required to put input depending on the radiobuttonlist selection?
Let me try to clarify a bit more. I got 2 radiobuttons, if one gets selected, nothing else has to be done.
But if the otherone gets selected, a textfield must have some input too.
I have several text boxes named txtWidth1, txtWidth2, .....thru txtWidth12
I am trying to make some of the text boxes visible depending on the value of a variable "y". I thought I could do something like below, but I know line 9 is definately wrong.
Private Sub txtQty_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtQty.TextChanged
Dim x As Integer
[Code].....
I have a list box on the form which functions as a copy/paste. When you copy something, it is automatically added to the list box as a "clipboard helper". Here is the problem,however: if the text is more than 1 line, the list box does not show all the text.It ends up looking messy.So getting back to my question, is it possible to make the list box item height for an item depending on the amount of lines that item contains?This is a one line sentence in the list box and should take up one line.This is a multi line sentence in the list box and should take up two lines for item height.
View 11 Replieshow to make the datagridview read only as i noticed that when i display a datagridview with the data, it can be edited. How can I just display the data from the database. I use datagridview is to show the data that get from the database, am I right?Hope that anyone could help me on is there any way to display the data that frm the database beside datagridview?
View 10 RepliesI have a class which contains the object and a collection for that object. I want to make a property readonly to external calls, but allow access to that property from the collection class. I know I can use:[code]But, I want to the PreviousRow property to actually show as "ReadOnly" in the intelisense of the calling code of client app. The above does not. The only way that I see to make it show as "ReadOnly" in the called code is to mark the whole property as ReadOnly, but the problem with this is that my collection class code can no longer access this property:[code]I tried using the "Friend" declaration, but that seems to still allow Write access to the calling code.I only want write access from within the RowCollection class.
View 9 RepliesSo I have created an auto login for a website via webbrowser.
The code I have so far is this[code]...
So i need to somehow make it wait after entering the login button before doing the IF statements.Oh and is there a direct way of checking URL? instead of updating the label wich seems alittle un-efective.
Also is there a way to constantly make the label update? like a loop or something?
Anyone have any have some code to make everything (or even all TextBoxes in a form) read-only all at once without having to set every control to read only individually?
View 6 RepliesI made a launcher to launch a bunch of programs, and i wanted to know if its possible to make the .exe read the /ini file to get the path.[code...]
View 4 RepliesI am working on some USB (flash drive) software which i want to make portable and always accessible on USB i know .net is not good for this because much users don't have framework installed but users who use this software have it installed and i just love VB.net :)
So what i want to do is to create a hidden partition on this USB device where software will store some info and itself. The software and data it stores is 6MB so i would also like to know the suggestions from you what size of this hidden partition can and i should make.
But:
how do i read from hidden partition through .net?
(i did never confront with this till now...) how i make hidden partition through .net?
I want this because users i working this for usually format their drives and that way they delete the software too, so hidden folder and encrypting doesn't help me in this.
I have a text file to read. The text file contain two parts. I need to find matching line in this two parts and place the matching lines in new file. In that new file i need to change the value in () from firs part and value in[] in second part. So far i can do all this things. This is a code.
Imports System.IO
Imports System.Text.RegularExpressions
Public Class Form1
[Code].....
So second line onwards the value will be X=X+2.4. Same also for second part . how should i point the green and red value and change the values. I attach mu text files here for your referance
I was hoping to find out how to make a list box only, so you can choose whats currently in the selection but you cant type / modify it but, only read and select.
View 3 RepliesI'm retrieving some norwegian letters for my application. I know that the norwegian letters has something to do with:iso-8859-1 But I have no idea how to implement it in my application.
View 5 RepliesI have several controls in a winform application that I added databindings to using code.
Dim tblWrapper As ObliqueQCAndSpliceTool.TableWrapper = New ObliqueQCAndSpliceTool.TableWrapper(tbl, idField.Name)
tblWrapper.UseCVDomains = True
[code].....
I am using Microsoft visual basic 2010 for a asp.net site using c#.I am using the asp.net configuration for user registration. I have a comments form which I want to appear only if a user is logged in.I now there is a toolbox helper thing called Login View which does exactly what I want but as soon as I put a form inside the code won't compile because it cannot find the textbox fields.
I have the following in NewsArticle.aspx:
<asp:LoginView ID="LoginView1" runat="server">
<AnonymousTemplate>
<div class="postcomment">
[code]....
If I take the form out of asp:LoginView it works fine. Inside I get the following:
Error 2 The name 'txtTitle' does not exist in the current context NewsArticle.aspx.cs 59 53 Figmentville
Error 3 The name 'txtComment' does not exist in the current context NewsArticle.aspx.cs 59 68 Figmentville
On a project I'm building for a client, one of the requirements is advanced user tracking. The client would like to know what pages an authenticated user is visiting, and when. I read through this post, which is probably the method I will go with. However, that seems a bit tolling on the database, and being that the client may use Azure to host this, I would like to keep the # of db transactions to a minimum [although this was not one of his requirements.. Anyway, I'm torn between the following two methods..
Method One: Log to db on every HTTP request using a HTTP module Method Two: Store in visits in session and log everything to database in one swoop during Session_End event
i was trying to get a ftp client work on vb.net but i recieved a error 530 not logged in.
[Code]....
(I work on VS 2005 with Access Database and C#)
I have my code as follows:
protected void Page_Load(object sender,
System.EventArgs e)
{
[Code]....
The logged-in 'UserId' and 'UserName' is getting displayed correctly, but now how do I use the string 'lmember' in my 'SELECT' statement when I need to display the related information from the table 'aspnet_Users' for the logged-in user? getting the following select statement:
SelectCommand="SELECT * FROM aspnet_Users WHERE (UserName= ????)"
On Form1 I have two textboxes (Username, Password), two checkboxes (Remember me, Keep me logged in) and a 'Login' button. I am using a MySQL database. Here is my code (w/out my database info, of course):
MySQLConnection = New MySqlConnection
MySQLConnection.ConnectionString = "server=REMOVED;Port=3306; user id=REMOVED; password=REMOVED; database=REMOVED"
MySQLConnection.Open()
[Code]...
I'm writing software in VB .NET (2005) which uses the Windows user information as login credentials - just the username. I've found Environment.UserName which works for the username (as you would expect).However, I need more information - I need the full name of the user (as shown on the Start Menu). It seems this information is stored... somewhere, as Windows is able to use it for things like permissions on file shares.
View 1 RepliesI'm wondering if its possible to ping a website while logged into the website so you can ping a certain page which you couldn't if you was not logged in.
I seen CMD ping through VB but that doesn't have cookies or anything so the URL is inaccessible.
im currently using cookies and HttpWebRequest atm, which im looking for a faster method.
im wondering if its possible to ping a website while logged into the website so you can ping a certain page which you couldn't if you was not logged in
View 1 Replies