When I insert data from my datagridview to my database an extra row is inserted at the end which contains no data. How can I overcome this issue. Each time I click on a new line in my datagridview and start the enter data, a new line is enabled below. Is there any way I can stop this blank line being inserted into my database?
Dim ds As New DataSet
ds.Tables.Add("Main")
Dim col As New DataColumn
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I have been following a tutorial in a book Vb 2005 Jumpstart Ch 4..Anyway I have followed the books code exactly and the program runs.It connects to Amazons web service and allows the user to search and display books, the application also allows the user to save the titles that they wish by clicking an Add Title button, when the user does this the current focus title is saved to the database and can be viewed off line.When I hit the add title the record gets saved as I can hit the catalog button which opens a new form with a datagrid that has all the titles I just saved in it!! But when I close the app and run it again the catalog is gone?? back to no records again?Now ive never worked with SQL databases before and this is me just having a go at .Net so I have no idea whats wrong or where to look.[code]
View 6 RepliesI'm adding records to my table which works fine. However, when I want to add a lot of records it takes some time and it looks like nothing is happening. I want to add a progressbar to show the progress.
For Each dgvrow As DataGridViewRow In mydgv.Rows
progress.Maximum = mydgv.Rows.Count
Dim cmd_save As New MySqlCommand("INSERT INTO ....etc", conn)
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I'm working on a project that employs a masked text box with a mask ####. When I run the code it pulls the value from the textbox then clears it. When I try to type in it again the first character is added before the mask. (ex. 1#### instead of ####) I've figured out that pressing backspace before trying to enter numbers again resolves this issue. Is there a way to send the backspace function rather than the chrs(8) like SendKeys.Send(Keys.Back) does?
View 8 Repliesthe first is validating numeric input in a textbox to make sure it's got two decimal places. I think this should be really simple, but I'm totally missing it.The second is adding an extra summary line to a listview. I have it working with all the data required, but I need to add an extra line at the end showing some totals. How do I do this?
View 10 RepliesLets say that I had three TextBox's and they are named TextBox1, TextBox2, and TextBox3, is there a way to do like TextBox And Rand(1,3).Text = Nothing? Something similar to this where you click a button and it will choose at randomly a textbox to clear?I know I could do like Dim Number = Rand(1,3)if Number = 1 Then TextBox1.Text = Nothingend ifif Number = 2 Then TextBox1.Text = Nothingend ifor use else if and such, but I have 12 different textbox's, not three, so, I want to shorten the code, if you could do something like TextBox And Rand(1,12).Text = Nothing that would defenitely be way shorter, can you do anything like that to put together "TextBox" and the number to reference the control? I am not looking to use the full controls list to search for the right control nor to make an array that contains the controls, I just want to reference them without adding extra arrays or searhing for them.
View 2 RepliesI have some code that splits a session into strings by a -
My session looks something like this 123-456-789- and I split it like this
Dim MyString As String() = Session("MySession").Split("-"C)
And i've got a some code like this
Dim x as Integer
For x = 0 to MyString - 1
Response.write("Ref: " & MyString(x) & "<br>")
Next
This writes the code like this
Ref: 123
Ref: 456
Ref: 789
Ref:
So it's adding an extra Ref where it shouldn't be because there is no data after the last -
Is there a way to stop this adding in the extra one?
could someone tell me what i am doing wrong in this codeProtected Sub insert_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Insert.Click
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Visual Studio 2008VB.NETFramework 3.5Windows Application
I have a SQL database names TestSQLVB
In it a table called tblTest2, with a three fieldstest2id , int, pk, increment by 1field1, varchar(50)field2, varchar(50)
I have a dataset named Dataset2.xsd
A tableadapter named tblTest2TableAdapter
A insert query names InsertTest2 with fields @f1, @f2 and ExecuteMode = Scalar
When I run the following code per MSDN [URL] the database does not get updated.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim testds As New DataSet2TableAdapters.tbltest2TableAdaptertestds.InsertTest2("One", "Dog")
End Sub
im in the middle of doing sql queries i can search my data base usingGetDateFrom (Select, from, where) Me.nameTableAdapter.FillBy(namenDataSet.descip, Me.box1TextBox.Text,Me.box1TextBox.Text, Me.box2TextBox.Text, Me.box2TextBox.Text)i have this working fine im struggling with inderting data to my databse i have made the query ..
INSERT INTO `details` (`Forename`, `Surname`, `Username`, `Password`)
VALUES (''& ForenameTextBox.Text &'', ''& SunameTextBox.Text &'', ''& UsernameTextBox &'', ''& PasswordTextBox &'')
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What I have is a database in a Windows Form (via tableAdapters etc., basically the default stuff VS adds). What I need to do, is add a very simple record of a name and score (the "place" is an auto-number). I have not even been able to tackle sorting the table, because I can not even figure out how to insert...
View 8 RepliesI have 3 tables. Customer,item, and price, where price holds the customerid,itemid, and the price. This lets me set a different price for each item based on who is buying it. I am trying to add data to the price table from a form which gets a customerid and itemid, and the price they will be charged. The only table to be updated is the price table.
Private Sub SaveButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SaveaspButton.Click
' cust and item are pulled in when the user inputs a name, the lookuptable is used to put into an unseen label
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This does add a table in the table visual studios uses but wont save it to the main database. This means I can do a fill method and see the row while the program is running, but wont be there next time I run the program.
why my insert doesn't insert into mysql database
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here is my code so far:
Public Sub cmdSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdSave.Click
Dim i As Integer
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when i click the button, i get a error message saying "Syntax error in INSERT INTO statement". as far as i can tell, i have everything i need to insert a new row into the database, and i dont see why this problem is occuring.
item(0) is an autonumber key field, so that should make a new record by itself, and i have declared the input textboxes as the data() array
if I have the following vb code,
for i = 0 to dTable.Rows(i).Count -1
Dim sql As String = ""
Dim strConn As String = ConnString
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I have Detail In Which I USed as Dropdownlist to INsert Item Template and I Am trying to add items to Dropdown using vb.net code using for loop bu when THe Page Runs it adds the values Five times because total rows in detail view are five .Here is My Code
If Me.IsPostBack Then
If Page.User.Identity.Name = "gate" Then
For Each DetVW As DetailsViewRow In DetailsView1.Rows[code]......
I created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
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I'm using a OleDB connection to a access database. I'm entering a row into the database to set some user preferences. What i need to get is get back the row ID of the row I just entered. I'm more familiar with PHP and with PHP I use use this entry
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I am currently writing a VB .NET application where I am trying to open 1 database, create a select statement and then post the results into another database file using Microsoft Access database 2003.
The code seems to stop executing at the statement cmdJetDB.ExecuteNonQuery()
I am using the following code:
Dim conn1 As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data source=C:Sample.mdb")
Dim conn2 As OleDbConnection = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0; Data source=C:db2.mdb")
conn1.Open()
conn2.Open()
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Question: What is it that I am not doing. I opened both connections, stated my two SQL statements, yet it is still not working. I really need to get this application working. Please Help.........
I have 2 Database in my VB.net application. I am using 1st database for daily operations. I would like to send one of the table records to online database. How Can I do that? First database is MSSQL Online database is MYSQL. I have created connections already using MYSQL .net connector.
View 2 RepliesI got a system which i want to insert, delete, update the data into my database and the data from database will be display using datagrid. The below is the coding for one of my button, delete.
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Try
btnSearchEmpNo.Enabled = False[code].....
Now I wanna set when user click on this button to delete a employee (for example) then the datagrid that i have in my application will not show the data of the deleted employee but in the background, the employee haven't been deleted from database.The employee only will be deleted from database when the user click on SAVE button.I know this application have to use RowState but how?
What I want to happen is that the button from my system will remove the previous data from database and then insert new data to database from text file. Im done with inserting new data. The thing is that I dont how to control or where to put the Delete Command from my code.
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I am trying to connect my code to a database and insert a value using ID as a way to access but when compiling, the catch part always shows up, If any body can give me a hint for that, here is the code,
Private Sub btnSumit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSumit.Click
Dim intId As Integer
Dim strAnswer As String = comboCountry.Text
If strAnswer = strCountry Then
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I am trying to add a new record to a table, well first it checks if there is already a duplicate record in the table, and if not it makes one. If there is a duplicate, it tells the user.[code]
View 2 RepliesThis my code in VB.NET. My try catch says there is a syntax error in the instruction INSERT INTO. I don't know what happened to my INSERT. I searched for the error for over an hour... I'm not an expert in VB.NET, I'm better in C#, but I need to do this anyway in VB..
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I have the following code, which its aim is only to insert a row formed by 4 fields (textBox) in the DB. The database is created by Access.
Private Sub Insert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Insert.Click
Dim connectionString As String
connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and Settings
obertoMis documentosVisual Studio 2008ProjectsDiccionarioDiccionarioDiccionario.mdb"
Dim dicDataSet As New DictionaryDataSet1()
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But unfortunately it doesn't run, when I debug, the code passed through all the lines without problem, but it doesn't insert the row in the DataTable. One curious thing is that when I run the application the database which remained connected It disconnects automatically, and I don't know why.
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Thought I should probably say im using Windows 7 and the 2010 beta Visual studio
Load from database to datagridview
Call ConnectAccess()
Dim da As OleDbDataAdapter = New OleDbDataAdapter("SELECT ProductName,Quantity,UnitPrice,Extention, InvNomer,ProductId, InvDetId " _
+ " FROM InvoiceDetail where InvNomer ='" & pbInvNomer & "' ", mConn)
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How to Insert all value of datagridview to database
conn.Open()
conn2.Open()
For x As Integer = 0 To (Val(admncal.DataGridView2.Rows.Count) - 2)
Dim item As String = admncal.DataGridView2.Item(0, x).Value
Dim price As String = admncal.DataGridView2.Item(1, x).Value
Dim qty As String = admncal.DataGridView2.Item(2, x).Value
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How can I insert the values inside the datagridview to database.
When I want to insert datetime to database. Sometime is good but sometime is error. This is the code:
datetimesales = format(now,"dd/MM/yyyy hh:mm")