I made a UpdateCommand for my dataadapter in my MySQL connection. [code]Is there a way to link these up parameters to variables or textfields? Cause I want the value from a textbox to be the value of tabText.
View 1 RepliesWhat I am looking for is using a URL link such as [URL] to open my application and read the params using GET. I do not want to use the click once method to do this, because I want the application to load up without the starting up bar at the topleft. I know it could be done but I could not find anywhere to do it at. You can see an example used over at curse.com where they use a link like [URL] to launch their app and download the item. Another example is with Ventrilo where you can use [URL] links to start vent and connect to a server. The reason I want this is because I plan to use it to give my customers a way to give their clients a way to connect to their servers with my software using a simple URL.
View 1 RepliesI am using Visual Basic 2008 / MYSQL
Basically i have 2 tables in mysql called Data and products
The first sql query i want to do is something like this to scroll through the recordset of products and bring back information;
dbquery.commandtext = "select quantity, sku, condition from products"
But then what i want to do is bring back information from the Data table based on the sku and condition of the first sql?
so it would be something like this
subquery.commandtext = "select lowestprice from data where sku = *SKU FROM FIRST TABLE* and condition = *CONDITIONFROM FIRST TABLE*"
I�d like to pass the username and password within a link to a browser using VB code. This link works "http:192.168.0.26:81/forum/login.asp?username=test&password=test" when used manually but not when used within a code:
Dim username, password As String
username = "test"
password = "test"
WebBrowser.Navigate("http:192.168.0.26:81/forum/login.asp?username='" & username & "'&password='" & password & "'")
The username and password are passed onto the web page within single quotes as �test�.
Well I am a new to VB.NET, converting a legacy system to .NET world. Recently I have been reviewing the already existing code since I joined the project quite late in the team. I find that there are many shared functions (not shared class) inside many classes. I doubt this may create some problem if two requests ( i.e two different HTTP request to the same method as it's a WCF application, of course exposed methods are not shared but internally called methods are shared) comes to the same shared method and both the calls to the method may have different method parameters/arguments, overwriting each other's arguments. In short, if shared method has a list of arguments which is going to be processed, is there any chance of inconsistencies in the light of multiple access to the shared method via two http requests.
View 2 RepliesI have an application where a user is entering data into textfields using vb.net and then it is saving to excel. The textfields only accept numbers and do not allow the user to proceed unless all textfields have been filled out. If for some reason the user cannot enter in data (machine being broken etc...) is there a way that a messgagebox with a textfield can pop up allowing them to enter the reason that they couldn't enter a reading and then get saved to a textfile or sent as an email.
View 5 RepliesIn an application with multitab on a user Form after collecting some information I will plug it into an access database and collect data and disply it with another "Second" User form.On the second user form I make a selection from 1-10 selection on the second user form, and again I will read the access database using the selected data by the user and would like to plug in to the First user form and close second user form.Somehow my textfield is not accessible and I get the yellow tip of "PLName is not member of 'Windows.System.Forms.Form'"[code]
View 4 RepliesWhat I want to do is gather the data that displays in my listview (called 'lstData') when selected and populate my textfields with it's information.[code]
View 2 RepliesI am creating a small program which has a few texboxes which i want to saved in a access database.My problem is i have no clue what code belongs to such button.I have added the database to my datasources, and linked the fields from the database to the textboxes.But thats all i got so far,.Being searching around the net for a few days to figure this out, but no luck.in my access db i got the fields firstname, surename, address1, address2, postcode, phone, email.Each are linked to their matching textbox on the form.
View 2 RepliesIt appears to me to be right but always returns true.
vb
Private Function ValidateAllFieldsAreNotEmpty() As Boolean
Dim groupboxes = Me.Controls.OfType(Of GroupBox)()
Dim textboxes = groupboxes.SelectMany(Function(groupbox)
[code]....
When I drag a dataset onto a form (as details), is there a way in which the textFields maxLength property is automatically set with the width within the actual table. Or do i have to select each textBox and enter it manually?
View 1 RepliesI have a gridview as follows
<asp:GridView ID="productListTable" runat="server" DataSourceID="srcProductListPerCustomer" AutoGenerateColumns="False" AlternatingRowStyle-CssClass="tr_dark" HeaderStyle-CssClass="header_req"
[Code]....
And it actually seems to work on first instance (altho im not sure the above is a good way to do it, but the problem is when use the pagination on the gridview I get the error
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
On the line
Dim productId As String = productListTable.DataKeys(i).Value
why I am getting this error and also is there a better way to do it ?
I need to be able to start with Form1, move to LoginForm, then back to Form1 taking 2 variables and the "values" they have in the LoginForm back to Form1 and using the variables. I start with the main form (Form1) and have the user enter some information. Once they click OK I have the LoginForm open. After they enter their credentials I will check to make sure they are legal users, then go back to Form1 (here is where I need to take the Username and Password with me) to log onto a server using the same credentails from the login form.
View 1 RepliesI'm writing a query to select all records that has any part of parameter. I have one table called Employees. Some people have name like this: John David Clark If the parameter is
[Code]....
I should be able to get result back as long as there's a match in the parameters. If I use Function Contains (q.FirstName & " " & q.LastName).Contains(employeeName), I will not get any result back if employeeName is "John Clark" Function Contains looks only for next words from left to right. It doesn't match a single word at a time. So that's why I used this in the Linq to SQL:
[Code]....
I am getting error [07002] the # binded parameters < the # of parameters makers, i checked both parameters were perfect even though i am getting this error here is my code
[Code]...
I'm using visual basic 2010 express..I'm building my own web browser and want to add a download manager.I have been able to build one that will download a file if I type the file location into a text box.What I'm trying to figure out is how to have the download manager open when I click on a download link on a web page.How to make the download manager know it is a link to a downloadable file as opposed to something like a link to another webpage?
View 3 RepliesI have a link here that works perfect for calling the postback close that I need to happen:
<a href="javascript:parent.__doPostBack('Close','')"><asp:Label ID="Label5" runat="server" Text="Close Me"></asp:Label></a>
However, I would like to be able to call the *javascript:parent.__doPostBack('Close','')* method from the code-behind file rather than the user clicking the link. I.e., when I have completed my tasks in the application code, call parent.doPostBack as my last function call, which closes the window in question.
When a button is clicked i am creating HTML that will be displayed in the WebBrowser1 control. With this HTML are several links to other pages. Is it possible that when one of these links is clicked, that WebBrowser2 navigates to the page instead of WebBrowser1?
View 5 RepliesI have a project that I would like to add a URL link and an email link to in the Help/About dialog. How can I do this? Is it possible to add HTML code to a VB project? This is not a Web application.
View 6 RepliesIm trying to create a webbrowser in VB 08;
I was wondering how i would create new tab with the Link the clicked.
*EG* They Right-Click Link > Open In New Window/Tab > Makes New Tab In My Program > Navigates To The Linked Clicked.
Basically Commands has Parameters and parameters has functions like Add, AddWithValue, and etc. In all tutorials i've seen, i usually noticed that they are using Add instead of AddWithValue.
[Code]...
since it saves my coding time. So which is better to use? Which is safe to use? Does it improves performance?
is there a way to get the GET parameters and POST parameters in just one function or Collection in ASP.NET? Like using $_REQUEST in PHP? I'm using VB.NET.
View 3 RepliesLast year (2010) I came across a FANTASTIC command that allowed me to take a string of variables with a common delimiter and break it all back out into separate variables (possibly an array) with one statement.
[Code]...
As long as the delimiter was a unique specifiable character, this one-statement command could break it out into elements. my memory and point me in the right direction.
I have code, shown below, that works all except for 1 thing: The variables being passed byRef get passed, but once modified in the else section of the "if me.invokerequired" code of RecordData, the variables are never updated in the calling function. To reiterate, the calling function does not receive the updated data that is in the variables custid and amt.When debugging, I see the data change in the else section of "if me.invokerequired", but once it returns from the callback the data is missing.[code]
View 15 RepliesI define some global variables of a class as follows:
Private Class MyClass
Private var1 as Decimal
Private list1 as List(Of string)[code].....
But I found that after this form is closed, all above variables, var1, list1, list2 still exist in memory. I thought they should be collected by gc since the form is already disposed as I confirmed.
Add: I have monitored half an hour after the form is closed. But these variables are not collected by gc. I have an automatic update procedure on the form which uses above variables.Since the above variables still hold values, the automatic update procedure is always called which causes exception. (One quick fix is to check if form.isDisposed in update procedure. But I do not think this is elegeant. Besides, these variables occupy memory.)
Does the memory used in declaring variables are reclaimed by the OS when these variables go out of scope?Does the memory used be released by setting thier value to nothing? if not, then how can I force the garbage collector to run or excecute at a certain/desired time..How about in Windows Forms..How can we make sure that the memory used in initializing and showing forms be released if those forms were closed?
View 13 RepliesQuestion 1: What is the difference between "Background Worker" and "Worker Pool" as indicated within the MSDN samples provided.
Question 2: I noticed while using, AddressOf _Function_, variables cannot be passed; what would be an efficient solution to this?
Question 3: While using multithreading is it required to invoke before setting variables, or only form properties?
Question 4: While using System.Net.Sockets is it safe/efficient to use Application.DoEvents while waiting for new data; or would be using a Do While loop be fine without DoEvents since the action would be multithreaded? Note: there can be up to 2000-3000 sockets in use at a time.
I'm new in .NET programming.I have a class Form1 that includes Button1_Click event.Button1_Click creates a multiple Text Boxies at run time)Here is the class:
Public Class Form1
Dim shiftDown As Integer
Dim counter As Integer
[code].....
so I'm using Visual Studio 2010 and I'm trying to make a program where I would have a textbox where the user would type,then a "Go" button. In the textbox, the user would type a number, lets go with 1 for an example. A user would type 1 in the textbox, then it would automatically add the 1 to the end of this .swf link: "http:[url]... after they enter the 1 in the textbox and press the "Go" button, it would add the 1 to the end of that link, then that link would open a new shockwaveflash form with the link being the Movie. Is this possible?
View 5 Repliesi am using this function to get link of page which refered current page (in Back Button)
[Code]...