VS 2005 Inserting A Decimal Value In The Database
Aug 6, 2009In the database i set the Amount and Interest columns to number datatype. Here lies my insertion
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In the database i set the Amount and Interest columns to number datatype. Here lies my insertion
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I am trying my hands on VB.net and is trying out a small application which includes a survey form. The form contains radio buttons and when the respondent clicks on a radiobutton, digit '1' should be placed into the relevant field of the database.I have established a dataset and tried doing it but not sure how to do it because the book (How to program Visual Basic.Net by Dietel) does not teach us that
View 1 Repliesi created a password protected access database and did this code to insert data into it:
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but still i am getting the same exception..... how to solve this problem?
i created a password protected access database and did this code to insert data into it:
Imports System.Data.OleDb
Public Class Form1
Dim con As New OleDbConnection
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I have a web portal designed in ASP.NET in which we ask customers to enter the data. On the click of submit button all i have done is, just read the data and called a stored procedure which inserts that into a table. There seems to be a problem in SQL Server 2005 while inserting the data from multiple computers at the same time. We have tested in our lab with three computers, result is that we get the data inserted successfully in only one machine and on the other two machines we get error on page. I have used transactions in the stored procedure and also tried setting the isolation levels to READ_UNCOMMITTED, SERIALIZABLE and SNAPSHOT. Nothing seems to work properly.
View 4 RepliesI am trying to think of a possible way to insert a colon and decimal point to a part of a number. I am making a Rubik's Cube timer, and I converted the times to milliseconds so I can calculate the average of 5 with that. I averaged the milliseconds, but now I need to convert that into minutes, seconds, and milliseconds. Does anyone have any idea on how I would go about this?
View 2 RepliesWhat is the cleanest, most readable way to String.Format a decimal with the following criteria
start with a sign symbol (+ or -)
a fixed number of fraction digits
no decimal separator
right aligned
pre-padded with "0"'s
I am trying to insert a value in to a existing table in access. But while executing the code I got this error "" could not find the table "tab_name". I checked the table was exist also the column. But still stuck with this error.
Here's the code.
Dim Mycn As New OleDbConnection
Dim Command As OleDbCommand
Dim icount As Integer
Dim SQLstr As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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Here is the
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Is there an easy way to insert a line into the very beginning of a large file?I want to insert an XML header line into XML files that my program processes (These files can be very large, so reading it via bitstream and writing it out is not a good option).
File.AppendText makes it very easy to append lines to the end of a file, but I don't see anything for inserting text.I wonder how does say Access work in processing say a 50 meg access database file? There must be a similar process where you can insert data anywhere inside a large file.
i'm new to vb.net. i'm using visual studio 2005 windows application vb.net language. i'm doing a company project and using MS access database. i want the user to add data about the new customer and save it to the database.i used the followinf
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Im inserting records from a dataset to access table by selecting a key(dix) from a listbox. below is the code Sub loop2(ByVal dix)
ds.Clear()
table_name1 = "TestStepDetailTable"
con.ConnectionString = dbprovider
con.Open()
'MsgBox("database is open")
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The problem is when i insert a first key(dix) records its coying fine. But when i insert the second set of records in is sorting int he table. but when i looked at the dataset by using gridview the recods appears in a right order. but the updated table is somewat sorted order. Is there any possible way to insert the records in the same order in the dataset..
It try to insert 10 digits number to database sql server through textbox it give me this error.Here is the code which i use for validation the textbox
Private Sub contacttxt_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles contacttxt.KeyPress
If (e.KeyChar < Chr(48) Or e.KeyChar > Chr(57)) And e.KeyChar <> Chr(8) Then
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My problem is when I try adding a new appointment I get an error that says ""Column 'AppID' does not allow nulls."" Editing existing appointments is fine and it updates the DB no problem. I don't have an INSERT statement right now (which might be the issue) so I was thinking of doing this: INSERT INTO [tablename] ( [column1], [column2], ... ) VALUES ( [value1], [value2], ...) Only problem with that is I would need to use the textbox names for the VALUES, and that form that pops up to gather appointment info is from a third party, and I can't find the names of any text boxes
View 2 RepliesI've written the following code to add a new record to a database:
Public Shared Sub AddTopicUser(ByVal UserID As Integer, ByVal TopicCode As String)
Dim RowsAffected As Integer
Dim ATUDCONN As New OleDbConnection
ATUDCONN.ConnectionString = DBCONNSTR
Dim ATUDCMD As New OleDbCommand("INSERT INTO tblSubscriptions (UserID, TopicCode, Completed) Values (@UserID, @TopicCode, @Completed)", ATUDCONN)
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I recieve no errors from the code, but when i open the database after - the record has not been added.
I have checked that the values being passed as parameters to the function are valid. I was curious as to whether I was formatting the OleDbCmd correctly, which is why i added a message box function to show be the value of the connection string which at runtime is: when they're not being added to the db?
I am having problems with inserting into my sql database my program is as follows:[code]So when I enter my data, into my program, it goes perfectly until it gets to "dim num as integer = cmd.ExecuteNonQuery" and then it comes up with an error saying "Syntax error in INSERT INTO statement.".i am also doing an update function which is pretty much exactly like this, except for the sql command of course, and that works perfectly with this code.[code]I have noted that instead of"replace" it should be "insert" but am now getting another error where it says "Conversion from string "#PlayerNo#" to type 'Integer' is not valid."
View 5 RepliesSo I have the following that seems to work fine in MS SQL Server management Studio and seems (but isn't) to be working as its doing a re-direct to another page after the insertion of data...Basically, I pull in all the data from the text boxes and hidden fields, convert that info to strings and do my insert statement. Now in MS SQL SMS The following insert statement works:
insert into [Contacts].[dbo].[contactInformation] values ('Adam', 'john', '16', '' , '' , 'm', '', '');
You can tell from the above which are allowed and which are not allowed to be null. any ways. Why is this not inserting data into my database? is it because of
cmd.CommandText = SqlDataSourceCommandType.Text
I'm trying to insert data into a MS SQL database from a vb application. When i enter in some dummy data at runtime, this is the error i get "Invalid column name 'ahfh'. Invalid column name 'dsfhdf'. Invalid column name 'sdfhdf'." The error occurs at this line - "myCommand.ExecuteNonQuery()"
Protected
Sub Button1_Click(ByVal
sender As
Object,
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Iam developing bank application in vb.net 2008. Back end is ms access. I want to insert customer details into two databases.I 'm included connection string as seperate module customer database
Module Module1
Public Const cnstring As String = "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False;Data Source= D:\Bank Project\customer.mdb"
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I'm getting error in rs1.open(select *...) line as 'could not use File already in use'
I am using an SQL local database to store my data. I can connect to it, but i cannot write any data to it. I get no errors when i execute my code, but when i view the database it is still empty. I have working on this for about 12 hours, I have imported System.Data and System.Data.SqlClient
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how to insert the images in database using vb.net.both using web cam and scaned photo
View 1 Repliesi have sql server 2005 for my database, and asp.net and vb.net for my web application.
i have one web form that is used to insert data in to my table.
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you see that there is html tag that is <br/> for new line. now that data successfuly added into my table, there problem is when the data is display using datagrid or datalist, the html tag that is <br/> also displayed as it is. how do i make to it its normal function?
I typically dont use a dataset in a case of new data insertion to the database. But then again, I will run in a problem the weather the inserting data already exsit in the database. Therefore i need to perform a search first. However, if i follow this it will take slow down the application (if the table has 1 million records). One way i could optmimize this is to load the whole table in to a dataset then the application doesnt have to go to a back end trip nwo it can search inthe dataset. Is this the standard way for inserting records?
View 3 Replieshaving a bit of trouble with inserting records into my database. I have the following code:
Dim mypath As String = Application.StartupPath & "\Data\Contacts.mdb"
Dim mypassword As String = ""
Dim inc As Integer
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I have a VB front end for an Access database and all I need to do is assign the values from the front end onto an Access table,[code]Not sure what I am doing wrong, I have created something similar in VB6 but can not get my head around it in vb.net.
View 4 RepliesI'm working on a program for my company and have hit a wall in my knowledge of Visual Basic since it has been a few years since I've worked in it.I don't know how to insert a row into an access database. I've tried a bunch of different things I found on other forums and the like, but none of them worked. Right now i'm just using a Connection Object with ExecuteNonQuery() and it doesn't return any errors but it also does not add anything to the database.I've posted my code below.
Public Class PunchForm
Private Sub cin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cin.Click
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I am new to SQLSever, Visual Studio and Visual Basic. I have read through Microsoft Visual Basic 2008 by Michael Halvorson and Microsoft Visual Studio 2008 by Lars Powers and Mike Snell. These books mention the ability to use SQLServer as the DB but I am not clear on the process. I am not knew to programming an have had training in OO programming but have never done any OO programing professionally. So, you can assume I am new to OO programing.
I have created an SQL DB using the Server Explorer in VS, and created a Windows form with Labels, TextBoxes, and ComboBoxes for the application's user to add the demographic information about a new employee. I created a new query with the Query builder that is in the Employee table of the DB which contains all the field for the record for inserting. I have a few questions to understand the process for inserting into the DB.
The DB fields are defined as numeric(6, 0), nurmeric(5, 2), and char(30) for some examples.
The maxlength on the form windows are in sync with the maxlength of the DB for the various fields.
1. What is the process to update the DB with the fields from the form?
2. Do I need to declare and set the results from the form first? If so, how do I call the function (query) that I created in the Employee table.
3. The emp_num I would like to be a dynamically incrementing number starting from 1000. How do I make this a dynamic? The emp_num is also the key on the Employee table.
4. I have a decimal field on the Employee table to hold emp_rate (pay rate). Does the user enter the decimal on the Form or is this resolved by SQL to take the 7 numbers and insert the decimal beause of the table's field definition?
Decimal type columns have Precision and Scale where the length of the integral part of the decimal would be Precision - Scale, if the Precision is 4 and the Scale is 2 then the integral part can only contain 2 digits (4-2). As such I will probably need a control that I could set how much it should accept on its integral part. In that regard I am not sure which control is best for such cases, I could try to make a usercontrol that will handle that but is there any other control out there that I could utilize for this purpose, intrinsic to .Net or a custom control out there? I could also just validate the data keyed-in but the above solution seem to be more user-friendly. Curiously, when databinding such Decimal type columns, how is it handled when the specified integral part exceeds the allowable size (Precision minus Scale)?
View 1 RepliesI have a xml node, which can be shown in immediate window as
?Me.SelectSingleNode("./FloatAmount").InnerText
"100.00"
?typename(Me.SelectSingleNode("./FloatAmount").InnerText)
"String"
However, I want to return a decimal value.
?cdec(Me.SelectSingleNode("./FloatAmount").InnerText)
Run-time exception thrown : System.InvalidCastException - Conversion from string "100.00" to type 'Decimal' is not valid.
I need the application version as an integer with decimal points eg: 1.2 At the moment I'm using:
Dim CurrentVersion As Integer
CurrentVersion = My.Application.Info.Version.Major & My.Application.Info.Version.Minor
which just gives me 12.