Prevent Error Coming In Debug Event When There Is No Record In The Table
May 26, 2011i have this code to open a record and this working if there is any, but if no records it will come out with error
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Error When Deleting A Record From Table (table Which Stores Username And Password)
Apr 26, 2009I got an error when I tried to save a deleted record in a table which I use to store username and password.
I can delete with no problems but the error message popped up when I clicked on the update icon
My login code is like this
Imports System.Data.SqlClient
Public Class Form1
Private Sub btnOK_Click(ByVal sender As System.Object, ByVal e As
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Add Record In My Database When It Is Coming From A Checklist Box Control?
Aug 30, 2010I'm having trouble on how to code this. First I need to assign a value for every item in the list (1 for the first item, 2 for the 2nd and so on). Does this control have a separate field for the value aside from text?
Second, I need to insert this into my database(MSSQL 2008) in this format:
insert into table values(ID,selectedvaluegoeshere)
VS 2010 Insert New Record In Gridview Coming From Textbox?
Mar 28, 2011how do you insert new record in the datagridview coming from what the user insert in the textbox?
I tried to used the INSERT INTO -- sql query, but it didn't work..
Coping The Active Record In A Form To Another Table And Then Deleting The Record From The Original Table?
Aug 18, 2011I am leaning VB and have created a basic inventory app for work that consist of 4 tables, CurrentInventory, Surplus, Staff and Category. Each of these tables have a corresponding form. My question is with the CurrentInventory and Surplus form/tables. I want a button on the CurrentInventory Form that when clicked the current record would be transferred to the Surplus table and deleted from the CurrentInventory table.I am assuming that I could somehow use the INSERT command to copy the current record to the surplus table but I am not sure how to accomplish this.
View 5 RepliesMS Access 2007 Error Inserting Record Into Table
Jun 22, 2010[code] When insCommand.ExecuteNonQuery is executed, an exception with Error # -2147217900 is thrown, with the detail of "In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user." At the time the error is thrown, this is what resides in strInsert: "Insert Into ScoutInfo (ScoutID, YearID, GSUSAID, FName, LName, DoB, Grade, Level, School, YearsIn, CurrentYear) Values (10000, 20092010, 123456, 'Jacobina', 'Lowe', '11/30/2009', 'K', 'Daisy', 'Thisone', 0, '20092010')" I've already verified that the Insert statement and datatypes of the columns match.
View 2 RepliesVS 2010 Getting The Error While Inserting Record On Table...Invalid Column Name 'xxx'?
Mar 21, 2011I am using the following code to insert record into my database but I keep getting the "Error while inserting record on table...Invalid column name 'xxx'." but when I tried to issue the command in SQL server: INSERT Movie_Table VALUES(100, 'Avatar');
Private Sub store_Data()
Dim con As New SqlConnection
Dim cmd As New SqlCommand
Dim iCounter As Integer
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Fill A Comboxbox With A Column Coming From A SQL Server Table?
Apr 26, 2010In VB 2008, I use a combobox on a form, and I want to fill it with data coming from a column of an SQL Server table
The Table is PLG_Rank, Columns are "ID_Rank, Rank_Name, Rank_Code"
I want to fill the combo with PLG_Rank.Rank_Name
After that, on a selection in the combobox, I want to use the PLG_Rang.ID_Rank for a request on the SQL_Server
Prevent The Class Library's Files From Being Opened During Main Project's Debug Mode?
Jan 24, 2009I made a Class Library project that contains the main classes that my Main Project needs because I don't want to main classes when I distribute my project. I've successfully called and used it in my Main Project. But when I started debugging and stepping through my code which involves calling and using the class I wrote in my Class Library, I noticed that the class' file in my Class Library opens up during debug mode.
how can I prevent the Class Library's files from being opened during my Main Project's debug mode?
Asp.net - .net An Error Is Coming
Apr 6, 2010Compiler Error Message: ASPNET: Make sure that the class defined in this code file matches the 'inherits' attribute, and that it extends the correct base class (e.g. Page or UserControl).
View 2 RepliesError Coming Up Almost Everytime Run Application From VS
Dec 20, 2011see the pic. and advise why this error is coming up and how to fix it.
View 1 RepliesPrevent Duplicate Record Entry?
Aug 2, 2010How Can i prevent duplicate record entry in vb.net.
View 3 RepliesAdding Association (link Table Record) Without Creating A New Related Record?
Jul 31, 2011I have two tables Products and Categories with a many to many relationship. I am trying to copy the categories linked to one product (OriginalProduct) to another product (newProduct). The problem is when I execute the SaveChanges() method, I not only get the records in my linking table, but it also creates another copy of the categories in the categories table. I've tried this in many ways but here are the last couple that I've attempted:
' Copy Product/Categories
For Each oneProdCategory In OriginalProduct.Categories
Dim relatedCategory = _productContext.GetObjectByKey(New EntityKey ("ProductInfoEntities.Categories", "RecordId", oneProdCategory.RecordId))
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Display Record From Table To Gridview On Page Load And Also Search Record For Particular Fields Using Textbox.
Jan 23, 2011My database : table1
ID FIRSTNAME AGE
1 Sumit 22
2 Sanjeev 23
i have gridview 1 and textbox1 and button1 i want when pages load the gridview displays the all records from table1 and also ...i i wanna search record for firstname by typing sumit in textbox1 and click on button1 then in gridview the record of sumit will be shown ..by default gridview display alll records from table1 How to do this My Selct Query is below : but it doesnot display all record ...but it can display record if you search for a particular record .
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Save Data In Table First Delete Record Then Insert Record
Dec 3, 2011I use This Code To Save Data in Table First I delete record Then Insert record
View 4 RepliesError Coming Up Retrieving Messages From Outlook
Apr 22, 2010I keep having this error coming up. Im retrieving messages from outlook. But it bring up this error.
View 4 RepliesVS 2008 Prevent The User From Entering Record?
Jun 29, 2010 I am using a database (access) were i am not using a primary key field. I would like to prevent the user from entering records , if certain fields allready exsists.
I would like to check for 3 of the fields. When these 3 fields has been filled previously with the same data as the new data, i want to return a message.
I am looking at the fields txtWeeknumber.text & txtTopic.text & txtSubOutCome.text
Here are some of my
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Event After Next Record Has Populated Child Record In A Datagrid?
May 27, 2011Visual Studio Pro 2010 Win 7 64 bit running bootstrapped to a MacBook Pro i5 (blasphemer!!!) works really well though!!New to vb.net, have used vb6 for several years and finding the transition interesting to say the least.I have an access database with a vb.net front end all auto bound by the connection and binding wizards (I know, I know...) Not too complicated, but a simple 2 table related db. On the form the parent table shows customer details with the child table related and displayed by datagrid. I have a field in the child table for images and I have figured out how to store and retrieve images to the db. I am using the datagrid.rowheadermouseclick event to reload the picturebox on the main form as I click down the child table datagrid. Now I need to be able to click the bindingnavigator, go to the next record and have the program reload the image for the next child record. The problem is I'm trying to use an event from either the datagrid or bindingnavigator to reload the picturebox in the child table after moving to the next record, but all of the events I am trying are firing before the next record is moved to and therefor the logic I'm using to retrieve the image from the db is not working.
Anyone with an idea on how to move to the next record and then run my logic to populate the picturebox? What events might I use that fire after the next record has been populated? I know this is probably not that hard, but I have been racking my brain all day now.
Cannot Add Or Change A Record Because A Related Record Is Required In Table?
May 11, 2011I'm receiving the following error:"You cannot add or change a record because a related record is required in table 'FORN_NIB'."
I cannot understand this error fr the related record really existe on the FORN_NIB table. It is even picked up from there. Here's the code where the error occurs at the .Update instruction:
HTML With rst
.Open("DADOS_RECIBOS", conn, ADODB.CursorTypeEnum.adOpenDynamic, ADODB.LockTypeEnum.adLockOptimistic)
.AddNew()
.Fields("NUM_FORN").Value = Me.TextBox1.Text
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Make A Calculation App, But The 'Declaration Expected' Error Keeps Coming Up
May 21, 2011I'm trying to make a calculation app, but the 'Declaration expected' error keeps coming up.
Imports System.Math
PublicClass Form1
Dim k AsInteger
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Error# 18456, Severity: 14, State: 8. Coming From Visual Basic Program
May 17, 2010I've been hired at a company to fix some bugs and make some improvements to their in house programs. The program I am currently working has been written in Visual Studio 2005, in Visual Basic specifically. The program is used to connect to a database on a server and provide various information. However, I have run into a snag where the program will refuse to connect to the database when it using a user account and password that has been set up on the database. When I look at the logs i see it is giving the error as stated above, however, I have double and triple checked the password both on the database and the one hardcoded into the program and they are identical yet it still logs that there is a password mismatch. Has anyone run into this problem or figured out a solution towards fixing it, I will be much obliged.
View 6 RepliesPrevent Event From Running
Apr 29, 2009I have a textbox1.textchanged event in my application.. so when I start typing into the textbox, it looks up the value of what I'm typing against a dataset. There is a datagrid in my application as well, and if i click a cell in the datagrid, it pastes a value into that textbox... when this happens, I don't want the textbox to do look up the value against the db.. I just want it to paste into the textbox without any further action..
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Foreign Key Constraint Error / Parent Record Does Exist But Won't Let Child Record Be Created
Feb 21, 2010While I've previously many years of relational databases and procedural languages, I'm stumbling with Visual Basic. In this problem, the simple situation is that I have two files, parent and child. The primary key of the parent file (Area file) is linked by a relation to one of the two fields that makes up the primary key in the child file (Project file) (unique key is formed from 'area' and 'project'). I have the default table adapters created on both files. I have created two maintenance forms showing one each of the two files in datagrid view format.I can create some records in the Parent (Area) file, but when I try to create a record in the child (Project) file, using one of the valid key values from the Area file, I get the 'ForeignKeyConstraint [relation name] requires the child key values [actual value] to exist in the parent table' which I'm absolutely definitely sure it does.
I haven't done any actual coding for those two maintenance forms, just dragged-and-dropped the files from the data sources screen onto separate forms so it creates the controls itself. But I can't work out, if it already knows the data does exist because I can load it back in to the Area maintence form, why it can't check itself to find out the record does exist. Why does it think the record from the parent record doesn't exist? It does exactly the same thing, whether or not the database is in access or SQL Server Express. I have all the latest updates.
Prevent Screen Flickering During Event?
Aug 19, 2009I know that in primitive versions of vb (as found in excel) there was a line that you could insert t prevent screens from flickering to and fro when it is trying to process something.Application.screenupdating = false
View 4 RepliesPrevent The Event From Triggering A Second Time?
May 28, 2011I have a TreeView object on my form, with check boxes. By the way, I'm working with vb.NET. I want it to perform a few different things with the aftercheck event:
If you check a node, check all its children
If you uncheck a node, uncheck the parent node
If you uncheck a node, uncheck all its children
The problem is when you uncheck a node, it unchecks its parent node, which triggers the event again and unchecks all its children.
Would there be a way to prevent the event from triggering a second time? Or will I have to give up on one of those two points?
Here's the code, if it helps any:
If e.Node.Level > 0 Then
If e.Node.Checked = False Then
If e.Node.Parent.Checked = True Then
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While I'm at it, is there a way to check if a folder is accessible? I've toyed with FileAttributes, but can't seem to find out how to make it work...
Prevent The SelectionChanged Event From Firing?
Jun 26, 2009Is there a way to prevent the SelectionChanged event from firing when adding rows to a DGV programatically? I am adding rows in a loop & the SelectionChanged event fires twice, which is causing me problems. I only want it to fire when the user clicks on a row.
View 9 RepliesTable - Prevent Malicius Use Of SqlDataAdapter
Jun 1, 2012I recently discover that running something like : Dim Da = New SqlClient.SqlDataAdapter( "TRUNCATE TABLE MyTable", connection) will create an empty SqlDateAdapter but it still execute the command. I want to prevent this kind of use ( drop, update, or even systable use,...) and allow my SqlDateAdapter to execute SELECT command only. I can't use a storing procedure because the command must be editable by the website users. After some research i found this :
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VS 2008 Listview Event Firing TWICE But Not In Debug?
Dec 22, 2009I have a very strange bug, I can't really find any reason so far why it's happening..I have a Listview doubleClick Event that fires twice.. for no specific reason, even if I go very slow (carefully) to dbl click properly.But when I put a BP to check what's happening,
View 5 RepliesAsp.net - Prevent Firing The Code-behind Event From JavaScript?
Jul 22, 2011I would like this ASP button control to stop calling its event handler when the JavaScript client method IsCorrectPrice() returns false.
<asp:Button ID="btnsubmit" runat="server"
Text="Submit" OnClientClick="javascript:IsCorrectPrice()"/>
btnsubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Handles btnsubmit.Click
How To Prevent Firing Of Last Event After Page Refresh
Oct 9, 2010Every time I refresh the browser, my button's event handler fires again. How do you prevent this?
View 2 Replies