I am trying to convert my DB field OLE Object as Bitmap into a Picture Box. In my DataBase there are 2 fields
1) Text
2) OLE Object (bitmap)
I am having problems trying to get the MS Access Database to equal the picture box. What I have so far is
Private Sub FindChemical()
Dim intDataBaseIndex As Integer
Dim rowIndex As Integer
Dim FieldRow As DataRow
[Code]....
I am trying to 1) write code in VB2010 that will get a JPG image from a Access Database field and write the image to a PictureBox 2) write code which will write a JPG file to an Access Database field. I have already sucessfully coded this in VB6, without fully understanding what I was doing.
Browsing the various forum's I have come across a few discussions on this subject, but due to my complete amerture status I don't seem to be able to follow the logic.
Below is the VB6 code
Writing JPG file to DataBase:
Dim bytBlob() As Byte
Dim intNum As Integer
[Code]....
I can save my data to access database and in the access database field I set it to date/time.But problem is when I get the value out from the database.. the format is always month/day/year hour:minutes:seconds example today: 5/2/2011 12:00:00..How to get the value into listview becoming May/2/2011 without the hour..Here's my code to get it from database ListView1.Items(i).SubItems.Add(dt.Rows(i)(14).ToString).The second problem is.When I would like to edit, how can the datetimepicker get the listview value ? [code] info: using access 2003 (.mdb) the Date of Birth field has been set into Date/Time.
View 2 RepliesI download a file into access. One field contains one to many numbers always separated by a colon and a space: I have no control over the download. TheNumbers have a 1 to many relationship to a customer. Each number must then be verified against two separate reference files, and if the numbers match the description related to the number will be displayed.I'm just learning visual basic. I've made the changes manually (yuk-this took forever); I've tried various string/conversion commands; I've taken the data and placed it into excel and tried to manipulate it, without success.In this case is always numeric. In another field, similar problem, it's a combination of text and numbers.
Example: Cust# TheNumbers
99 1234; 12345678; 123123; etc...
88 87654321, 345654, 98989898. etc..
The numbers can vary in length and quantity. For each customer each number must be loaded into one field.
Example outcome:
Cust# TheNumber
99 1234
99 12345678
[code]....
I want to convert a database field that is text into a VBasic String...
View 3 Repliesi have a table name product , when i m inserting data into product i need to first check if Product Name already exist in database if yes i want to exit. basically i want to know how to get data from the database and how to access columns in asp.net .
View 4 RepliesI need to create a field in my database access throught code... I had this code in VB6 to do the job,but i'm a little confused with the way to do this in VS2008.Off course I know the way to open the database,but the way for create the field I don't know!
Dim tdf As TableDef, fld As Field, Top As TableDef
Dim nCtr As Integer
Dim bFound As Boolean
[Code]....
I have a database that I would like to filter characters from anywhere in the field. Example the letter A is typed into textbox1 and in the grid every field that contains an A is show. Like dash, lap, trap, apple. Currently with the query I'm using it will just go from the beginning of the field. I get "Index was outside the bounds of the array". The code is as followed:
Dim filter1() As String
filter1 = TextBox2.Text.Split(" ")
Sheet1BindingSource.Filter = "Stationary_location like '" & filter1(0) & "' Stationary_location like '" & filter1(1) & "'"
VB 2008 using access database.
I want to add a blank value to a field in access database with vb 2008 command.
Problem 1: Here is my code, it shows conversion to string not possible errors
Private Sub btnRedThrow_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRedThrow.Click
Dim dbCnct As New DBUtills
[Code]....
notice the fifth and last value is empty. But it is not being added into the database, how do I do that?
Problem 2: Why does an additional field from my access database disappear even after I manually created the field?? (access database 2003 version, extension is .mdb) I'm using visual studio 2008
I need to add a new field to an Access database table, the user has filled the table with data, so I have to add the new field but to preserve the old data.
I have found the ALTER TABLE statement, but it gives me an error (ALTER TABLE is not a valid statement)
I done this in php+mysql with "ALTER TABLE People ADD Address TEXT NULL AFTER Name" (as an example)
How can do this in VB2010?
Is it possible to check a MS Access database table with existing entries to see if one of the fields is empty.[code]....
View 4 RepliesI have a textbox, I want that if I write a name in the textbox it will automatically append or suggest any names that match from the TblNames field of my Access database
View 2 RepliesI want to open an Access database and I want to multiply 2 fields between each other. I am a newbie and till now I only have found the way to open the access database and create my Recordsets. So, for example, if I have table Mytbl that is a recordset with 4 fields (columns) and I would like to multiply column 3 with column 4 and put the results in a new Recordset, do I have to do it by multiplying each and every record
View 4 RepliesI have made a front-end application in Visual Basic .NET that will store data entered by the user in a backend Access 2003 Database. The application has other functionality as well.If the user searchs for a previous record that has been stored in the Access Database, I query the Database (SELECT ... ) using an OLEDB Connection and then display the records on a Datagrid on my Form. Everything is working fine, however, the Column Headings of the Datagrid are the Field Names in my Database (FirstName, LastName,...) rather than Caption Values (First Name, Last Name,... )
I tried looking up the net, but most of the topics addressing a similar problems use DAO, and I understand that it is not completely supported in VB .NET. I am fairly new to VB .NET and I am not quite sure how to address the problem or where I am going wrong. I tried using FirstName.Caption but that gives a Runtime error (One or more parameters missing from the Sentence)
How could you, update the fields on database if its data type is Y/N, and the method of updating is a checkbox??
View 1 RepliesI am working on an asp.net project in VS2010 using vb.NET (not VBA) designing an interface to allow a user to upload a file to an access 2007 table attachment field. My understanding is that in order to interface with a table with an attachment field you
must use DAO to connect to the database so that you can expose the attachment field properties. When I try to open the DAO recordset I am getting "COM exception was unhandled by user code" with a message stating "Too few parameters. Expected 3". The error code is -2146825227 and the stacktrace message is "at dao.Database.OpenRecordset(String Name, Object Type, Object Options, Object LockEdit)"
[Code]...
Using VB 2008, I have a form which includes a richtextbox which is bound to a database field. When i bind the datafield to the richtextbox, I get an unformatted display unlike the control in VB6. How can I bind the data from the database to the richtextbox so that it displays formatted?
View 1 RepliesUpdate an access database field using vb by clicking on a datagridview row?
View 5 RepliesI have a piece of code that is suppose to update the password field when the user wants to change password but I get an error line:
An unhandled exception of type 'System.Data.OleDb.OleDbException' occurred in system.data.dll
error line: cmd.ExecuteNonQuery()
If BindingContext(ds, "login").Position < 0 Then
MsgBox("Database Is Empty !", MsgBoxStyle.Information, "Records Management System")
Exit Sub
End If
If ComboBox1.Text = "" Then
[Code] .....
I need to add (Append) additional text to the Comment field in my access database from a RichTextBox. I am having difficulty with the sql connection syntax.
View 6 RepliesI have th is little programm:
Dim dbOud As ADODB.Connection
Dim rsOud As ADODB.Recordset
Dim strCnnOud As String
[code]....
I have used ADOX for create some fields in my database in access but the required property of this appended fields (columns) are set in "yes" but I want to be them "No" who knows how can I solve this problem
View 3 Repliesi am working a "image processing system" project in vb.net using the ms access2007.i have to browse by clicking a button and open a image to display its name to a text box and that image to picturebox.and after that i want to add,del and extract those images to the access database.i want to use datagridview control also.
View 1 RepliesI have following code retrieving image from access database (OLE object)and assigning it to pic ctrl.
Dim bite() As Byte = CType(dg1.SelectedRows(0).DataGridView("subdivisionimage", dg.SelectedRows (0).Index).Value, Byte())
[Code].....
it is possible to convert the data in sql in to access??
View 3 Replieshow to retrieve image from access database?.. I've just finish retrieving data to the datagrid view. I want to retrieve also the image (also stored in the database as path inside the table where the data stored) in the picturebox. When i clicked the specific data in datagrid view, it will show preferred image to picturebox.
View 1 RepliesI have a program with access database. Is it possible to convert it to MySQL database?
View 3 RepliesConsidering that Grade.firstExam, Grade.secondExam, and Grade.finalExam are all TEXT and not numbers, i can't get the exact solution to convert null values into Zeros. I already tried to use NZ() but it returns an error message (Undefined Function 'NZ' in expression)im using VB.net with MS Access as my database. i also imported System.Data.OleDb Namespace.
[code]...
How can i convert empty string or null that exist in the field?
I am attempting to use the DateTimePicker and then add a day to each iteration in a For/Next loop. That seems to work fine and I can verify with msgbox that it is happening. However, I also need to write the date in string format to an Access database using INSERT INTO. However, when the code is ran, I get a "syntax error (missing operator)". Code is below. Can someone help please? I have tried all I know to do.(Please disregard the additional values in INSERT TO, I have verified they are working properly)
[Code]...
I have a form in vb.net 2005 with a datagrid and picturebox, when I click an item in the datagrid dgProducts I want to display the Picture which is stored in an access database in binary format inside the picturebox pbProduct. This is the code I have inside the datagrid click:
pbProduct.Image = Nothing
Dim x As Integer = dgProducts.CurrentRowIndex
Dim dt As DataTable
Dim drow As DataRow
[code]...
I have imported the system.io and system.data.oledb at class level and I hav generated this code from what I can find in forums online, but I get "Parameter is not valid" and no more help than that...