I 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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I 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 RepliesWhat i'm trying to do here is login using a table and fields with username and password and also usertype in it. If the user is an Admin then it displays the the command button cmdAdmin and if not admin it disables it. This is the code that i currently have at the moment Hope someone can help me out and also i want to get rid of the username and password that's currently in it and use database instead.?
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I am trying to delete a record from a table by using dao recordset. Currently I am working with the code listed below. Unfortunately i've realised that this code only deletes the first record in my table, whereas I am looking to delete a record form the table with an ID that I would have put in textbox1
Private Sub btnDelete_Click(sender As System.Object, e As System.EventArgs) Handles btnDelete.Click
Dim AccessEngine As New DBEngine
Dim db As Database = AccessEngine.OpenDatabase(DatabasePath)
Dim dbs As Microsoft.Office.Interop.Access.Dao.Recordset = db.OpenRecordset("myTable", RecordsetTypeEnum.dbOpenDynaset)
dbs.Delete()
End Sub
I would like to have a pop up messagebox that asks users for confirmation before deleting a record in datagridview and if the record is a foreign key to another table, another messagebox will appear and warns users saying" before you can delete this record, make sure you remove all the related records" I have tried but I don't know how to complete it.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.StaffTableAdapter.Fill(Me.StaffDBDataSet.Staff)
BindingNavigator1.DeleteItem = Nothing
End Sub
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i am using following code in my app but getting error the code is
Dim conn1 As SqlCeConnection = New SqlCeConnection("Data Source=|DataDirectory|exim.swf;Password=Pkyadav123;Persist Security Info=True")
conn1.Open()
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Is about login and record username and password.When i tried to debug the below code, error msg read "file not found". Basically, i am trying to create a test.mdb file into the windowslogin directory if there is none. Then user could either key in their old/new username or password where the data would be read / retrieve from the test.mdb. Somehow, there is error. [code]
View 6 RepliesI am trying to update table to access database in vb.net after changing password. But I have a problem in update error as following
Dim dbCommmand As New System.Data.OleDb.OleDbCommand
Dim DBConnection As New System.Data.OleDb.OleDbConnection
DBConnection.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Users haeayeDocumentsTesting.mdb"
dbCommmand.CommandType = CommandType.Text
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How to create a login page using visual basic which will save the information I put into my Username box and my Password box in a separate text file on my computer? I have seen various tutorials on how to make a login page that will ONLY accept the username and password info that you have put in the code, I'm looking for a bit of code that will allow any info entered into these boxes to be saved and stored as a txt file.
View 3 RepliesI'm using MySQL 5.5 database. I have created a database which only have one table where it stores all sorts of keywords according to categories.
The users key in sentences in the textbox and then I'm suppose to classify the sentences into the category based on the keywords in the database.
How do I loop through the database to compare the strings in the textbox to the keywords in the db?
[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 Repliesi 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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I 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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send a solution for this "update login SET password=@password,username=@username where username=@user"
while executing i got the error"syntax error in update statement "
i have some sample code on inserting a record from one table to another new table? Making the record on the first table to be deleted and been transfered to another table ..
View 7 Repliesi don't now where to but my question so if this is the wroung section i am sorry
i am designing a web site with a database using visual studio
and the code i use is visual basic
i use this code to insert in to tabel temp1
MySqlCommand.CommandType = CommandType.Text
MySqlCommand.CommandText =
"Insert into temp1 values(@id_card,@city,@name)"
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am having a query regarding updating a table A records from table b on a button click...have created connection sting and commandtext to exexute d query am tryn ds query bt it seems to throw some syntax error
cmd.CommandText =
"UPDATE stockno_table SET(product_id,Sold,Rec_No)
=(SELECT product_id,Sold,Rec_No from stockno_temp_copy
where stockno_temp_copy.stock_no=stockno_table.stock_no) where(exists)(stockno_table.stock_no=stockno_temp_copy.stock_no)"
basically the fields are same bt the stockno_temp_copy is a temporary table which i want to empty always while it updates all the table records to stockno_table...all the records except the Sold which is YES/NO field changes...NB: Access DB is used?
I can insert into my table by the bindingnavigator and dragging textboxes straight from the DataSet entering them and saving. But I want to insert into the DataBase via code and in order to do this I have used the below code to connect. I use this code to test the connection and cannot get it to connect. Just get the error to say the DB cannot be found.No username or password on the DB
Private Sub btnDB_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDB.Click
Dim connString As String = "Data Source=C:Visual Studio 2008ProjectsCollegeBetfairBetfairDB.sdf"
Dim myDB As New SqlConnection(connString)
Try
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I am getting the error "system.argumentException; Column ' test_id2' does not belong to table Table. At System.Data.GetDataColumn( string columnname0 at system.data.datarow.get_item(string columnName).
This error is occuring right after I set the parametervalues in the report object of the Crystal report.(Note this a visual basic.net 2005 windows form application.)
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim cryRpt As New ReportDocument
Dim sql As String
[code]....
The value for the first parameter @Parm_1d1 value to the crystal report version 11 is correct. However, when trying to access the second @Parm_1d2 parameter ,the values past to the crystal report is not correct.
I have a table with fields "username", "Password" and "initials"I have this filled with data.I also have a login form "the login part works fine" but what I also want is depending on what username the user puts in I want the relevant initials displayed in a textbox.
View 10 RepliesI have a data logging application that stores data in a table in a MySQL database. Data with a TimeStamp is logged into the table anytime the data from the sensor changes. This means that there maybe 2 seconds between data points or there maybe 20 seconds between points depending on how the data is changing.
When I need the data I have 2 dates and use this command to fill a table..SELECT FROM myTable WHERE timeStamp > date1 AND timeStamp < date2 This gets all the data that has a TimeStamp between the given dates, but in most case the first date in the returned table will be after date1, so I need to get the data from one row before the date returned in the table to know what the data was at date1.How can I get the data row that immediately precedes the returned data set?
It has been giving me a huge headache since last night. Anytime I try to add new record into my database,this error message keeps coming up: "Error: INSERT INTO Customer(Cust_ID, Name, Address, Username, Password) VALUE. I don't know where the problem lies.
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I 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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My 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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I use This Code To Save Data in Table First I delete record Then Insert record
View 4 RepliesI have a table in where I am trying to delete all the rows except for the first. I did manage to come up with the code following:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim dtRemoveRows As DataTable =
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In review, this code sort of holds the first row and clears the remaining rows. However, when I exit and reopen the program the rows return. So in other words, I want the rows to get permently deleted. I have searched and cannot find a solution to permenly delete all rows without deleting the first row.
how to delete all rows from a table in visual basic 2010
Dim CurMembersRow As MembersDataSet.MembersRow
CurMembersRow = CType(CType(Me.MembersBindingSource.Current, DataRowView).Row, MembersDataSet.MembersRow)
how do i create restrictions whereby there cannot be two similar username in the table, while registering? i am using SQL server.
View 3 RepliesI'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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I try to delete the row of the table from sql server 2005 via vb.net 2005 using textbox to refer the serial no value of the column which is set as primary key, when i click the button to delete it give me this error.
Quote: Conversion from string "error" to type 'Integer' is not valid.Here is the code Private Sub deletebtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles deletebtn.Click
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