Executing Sql Query In Visual Web Dev 2008?
Jun 2, 2011Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration
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Imports System.Data
Imports System.Data.SqlClient
Imports System.Configuration
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i am using vb.net 2008 and msaccess i have given the following query to fill a dataset but it is giving me an error. mCmd = " SELECT OfficialInfo.*, "
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Ok I'm creating a sql query with a string variable and executing it in vb. The string would look something like: Insert Into Table (vara,varb,varc) Values ('vara','varb','varc') This works fine.
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I've recently been trying to figure out a way to get parameterized queries to work and i think i'm almost there but seem to be getting an error when executing my query
Here's the code
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I`m now at the point calling server from vb.net, and run query inside vb.net code.I have write two codes on button click. One button is checked server connection, other should execute query for server table.Connection code is working, as I have set two messages, and getting successfull message. Second code is not working, as nothing happened when press button. Sql statement is very simple, and it works if I run it manually.[code]
View 19 Replies'Initialize The Database Connection'
Dim dbTRCoreDatabase As New TRCoreDatabase
'Query For Get The Employee ID'
Dim listEmployeeID As IQueryable(Of Long) = (From EmpMaster In dbTRCoreDatabase.EmployeeMasters Where EmpMaster.Email = [code]....
I have a string qText with the text of a query in it, say qText = "select * from Data". how can I execute it to fill a TableAdapter I have in my form with the resulting data?
View 2 RepliesWhat's wrong with my code, the query seems to be fine, I tried executing it on phpmyadmin.
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I got this error: ERROR [42000] [MySQL][ODBC 5.1 Driver][mysqld-5.1.36-community-log]You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
I am writing a program that has a listbox which is bound to a dataset. When I click a button (e.g. delete) the item is deleted from the database ok using an SQL query but is still shown in the listbox. How do I get the listbox to refresh/update its display?
View 8 RepliesI have created a system in Visual Basic 2010, which is to check on the existence of files attached in a access database. However there are different types of records in the database that will have to be checked against a different set of rules than others. For example one type of record will have to be checked to make sure certain named text files are there. However a different type of record will check for another text file with a different name e.t.c.
I have worked out that in order to do this I need a set of rules that the code in visual basic can match against and run that code depending on the choice. For example one type will execute rule 1,3,5 and the other type 2,4,6. I thought that these could be done in an XML document but am not too sure.
I have two module-level variables and Linq query. I want the results of the Let clause to change the global variables - is this possible?
For example:
Dim X As Integer = 0
Dim Y As Integer = 0
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I use LINQ but I am not an expert.. still learning as well on vb.net and sql
I have tables Orders and Numbers
Orders Table:
Order_ID -primary key
Date_Ordered
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I am working in a project where i have to add employees in a company. I have a form with text fields(for example name,surname,age,...). What i want is to insert this txt values into a database. My project is connected with an sql database. How can i add the values into a data table on button click("submit")?
View 9 RepliesI'm looking for a control that allows images to be placed onto it and moved about. Moreover, I need to draw lines between the images. It will sort of be like the query designer in SQL Man Studio. It will be used as a virtual desktop where a variety of objects (and their icon representations) can be freely placed and moved. I'm having a blank and cant remember where I saw this before.
View 2 RepliesI have a problem with a sql query. Through the query I am trying to search database for any occurrences of string (can be anything) in a column using the SQL LIKE command. The problem is that it works fine for most of the strings say john, jim, ji"m , but does not work when i include the following characters which are ( ' , { , } , and a single quotation mark). MYSQL query takes care of these special cases by putting them in [] block whenever user enters them .But i am getting the following error when i go to query the database using the GetSelectCommand() in VB.NET
Exception Details: System.ApplicationException: Number of values provided must be equal to the number of placeholders in query.I have checked the query over and over again .. but its fine .My database server is Sql Server 2008.So my application throws the exception in this command:
Using reader As MustDisposeDataReader = _
pmSystem.DatabaseManager.GetSelectCommand(selectStatementBuilder.ToString(), New Object() {})
Where MustDisposeDataReader is an instance of a class in an internally developed library, which inherits from System.Object. pmSystem is an instance of the class PlanManagerSystem which implements the commandlayer. GetSelectCommand() takes the select command
I have a sub in which I call different subs, depending on a value I pass through. It works fine for all but the last one. It executes the sub I call but then comes back to the first sub and runs the second one again
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I am working with a datagridview and 2 text boxes.TextBox 1 is for entering time of the day and TextBox2 is for entering time duration in that order. After TextBox2 looses focus I am converting the times into index numbers in my DGV1 and filling the selected indexed rows with some data. The data then is checked and if there are issues message is display prompting the user to correct it. However, all my codes for checking the data and selecting options are in the DataGridView1 event handler:
Private Sub Datagridview1_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MouseUp
Is there a way to execute one Subroutine from another Sub. Sort of simulating a mouseup click programmatically ? Correction: there are 7 sets of those TextBoxes representing 7 days of the week. I am trying to avoid duplicating all that error handling codes in all 14 boxes. I have read that MouseEventArgs are protected so it may not be easy.
I'm trying to execute a SQL command, but I just can't find out why this is not working. This is how I defined the "execute" function in my class named "clsSQL":
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Probably, I just need another pair of eyes, 'cause I can't see what am I doing wrong Could this be related to the database and not to my code?
So, I want to execute a javascript on WebBrowser1 when I press a button. Normally, I'd just navigate to the javascript to execute it. Like this:
Private Sub WebPageEditorToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles WebPageEditorToolStripMenuItem.Click
WebBrowser1.Navigate("javascript:document.body.contentEditable='true'; document.designMode='on'; void 0")
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This makes it where I can't leave the website and it keeps me on that one website. But the problem is that navigating to the javascript is not like [URL] so it won't let me execute javascripts that way. So, basically, my question is:
Is there any other way to execute a javascript with Visual Basic 2008 without navigating to it?
i seem to be having issues with my simple count down project. The count down work how I want it, there is also a pic of a rocket that move up when the count down button (Button4 - the form was set up in class as a quick example, so there was no need to name the buttons) is pressed. The problem is that the count down "10....1...Blast Off" shows after the rocket has moved up, I want the countdown text to show, then the rocket to move.The countdown is outputted to a ListBox.Here is my code thus far: (I have re-worked is a bit, starting to look messy)
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I am not sure if I should be doing it as a function, that was just one of my attempts to get it to output everything in the right order.
I wanna know how could I do to:Assemble a finished program, install it, and leave it executing in second plane to just push a key to work. Execute it once at the windows start and execute just a single key to make it work.I'd like to know what should I put before the assembly
View 5 RepliesIf certain conditions are met within a given subroutine, I would like to execute two other subroutines. Note that the other subroutines I want to call/execute "handle" a lot of events
vb
Private Sub S2_Enter (ByVal sender As Object, ByVal e As System.EventArgs) Handles S2.Enter
If upltschanged = True Then
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Why am I getting a request to configure DAO when I start a program I am developing in VS 2008? After I execute several cancels, the program runs fine.
View 1 RepliesI've created a program that creates a registry value when it is run, and when this program is uninstalled I need it to remove this registry value if it exists. So I wrote a little command line VB.NET program that simply checks for the reg value and removes it if it exists and I added this to the Uninstall section of the Custom Actions tab in the Visual Studio deployment project that I created for this app.
I know that the command line app works because if I run it myself manually it deletes the registry value, but when I uninstall my application it does not remove the registry value so obviously this command line app is not being executed.
Visual web developer 2008's .sln file is not working in Visual Studio 2008
View 2 RepliesI am trying to make a project for point of sale and i am having issues with updating inventory table. once cashier make sale items quantity should get subtracted from inventory table. i tried bellow code but it is not updating table, however in message box it does give me new quantity for that item.
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I have limited experience with Visual Studio and have a question about Querying an Access database. I have created a Visual Studio application that displays and modifies an access database. I have use datagridview and detailed view to insert data and view data in the Access database. I am now trying to figure out the best way to query the data in the database. I have tried right clicking a table in the database explorer and creating a new query. Everything works and I can view the data but I am unsure how to display this query result in datagridview. So my question is how do I view this result in datagrid view?
View 9 RepliesI have published application before and they all (3 setup files) work fine. The problem is I don't know anymore how I exactly did it. Now I am trying to publish another form which has a connection to my sql database. The publishing goes fine: publishing folder is: C:Movie-databaseApplication 4 and installation folder is the same, and I therefore leave it empty. Application is available only online. But when I execute the published setup.exe I get two windows with no info about the error: see attachment.
View 3 RepliesI have published application before and they all (3 setup files) work fine. The problem is I don't know anymore how I exactly did it.Now I am trying to publish another form which has a connection to my sql database. The publishing goes fine: publishing folder is: C:Movie-databaseApplication 4 and installation folder is the same, and I therefore leave it empty. Application is available only online.But when I execute the published setup.exe I get two windows with no info about the error: see attachment.
View 12 RepliesI receive this error: [code]whenever I run a query via a visual studio project in vb.net. If I run the same query via Open Office Base, it takes a long time but it works. How do I go about troubleshooting whats causing this?
View 2 Replies