I am trying to populate an Access table with data from a csv file. Here is my code
csvConn.Open()
Dim objAdapter As New OleDb.OleDbDataAdapter
Dim objCmdSelect As New OleDb.OleDbCommand("SELECT * FROM [reporting.csv]", csvConn)
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The csv has 58 rows of data. The Access table I get is 58 rows of the same data as the first row of the csv. Am I not using parameters correctly?
Im trying to populate a combo box with a column in an excel file.Im not even sure where to start. I searched around but couldn't find the info I needed or samples to learn from.
Can anyone point me in the right direction to where I may accomplish this?
I'm working in VB 2008 Express.
I have an MS Access DB with a Table setup with the columns that I need.
I have it linked into a form, with the requisite BindingSource, TableAdapter, BindingNavigator, etc.
On the form, I also have several textboxes linked back to the table. I can populate the table via the + (add new) button in the BindingNavigator and then filling in the textboxes (and saving of course).
Is there a way that I can put a button on the form and populate the table automatically? I want to do this via a textbox to control the number of records added - that way, I can put in an 8 and have 8 blank records added to the table via this one click (and don't have to enter the default info in for the 8 records one at a time).
I've attempted to do this by calling the BindingNavigatorAddNewItem_Click subroutine, filling in the textboxes and then calling MapBindingNavigatorSaveItem_Click subroutine, but this does not work.
I have a chechedlistbox on my form in a windows project, and want to populate the checkedlist box with data that I querry from a table in sql database. I have the code below for the Form load event, but the checkedlistbox is not populated.
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I am working on Visual Studio 2005, VB.At the back end,there is a table called "Marks" which has a column called "Subject". This column contains duplicate values.when the form loads,I want to display all the distinct values from the "Subject" column in the listbox.
View 2 RepliesI'm having some problems trying to input records into a relational database. The design is really simple but I'm running into a wall when it comes to having the foreign key from my child table autopopulate the primary key from the parent table. I've made the connections in Access and from what I understood, so long as I committed a transaction, the child table would populate the primary key from the parent table. This is not happening.
my question is: is there a method that would do what I'm looking for? or am I cornered into using @@IDENTITY and manually inserting the primary key into the child table?
I've tried using datasets and data adapters and created a datarelation within the dataset, but it is still not doing what I need. everything I've tried thus far has allowed me to insert records into multiple tables, but won't relate them because of the missing primary key in the child table.
I have 2 queries. One is populating a dataset that populates the dropdownlist and the other populates rest of the textboxes of a table row. i want to know how can i fill the entire dropdownlist and then make selectedvalue the value from the other query? e.g -
dataset query = select hobby from hobbies
other query - select name, dob, address, hobby from employee
now the table looks like this -
Name DOB Address Hobby
Sam 01/10/1988 111 main st Dropdownlist(n number of records)
Now in the dropdownlist I want all the hobbies populated with the hobby in the employee table to be the selected value.
Before any jumps in and says, Why dont you just use a gridview, i have my reasons not to use it.I trying to dynamically create a table and then populate the cells via a linq object.
Good news, i can dynamically create the table and the cells.
Dim numrows As Integer = MyActions.Count()
Dim numcells As Integer = 5
[code].....
Here is the code I am playing around I am getting error populating the table cells into my listview. In my codes it is always add only in one cloumn in my lv.
Private Sub DumpTables()
Dim t, c As Integer ' Used to count tables and cells.
Dim IWebDocument As HTMLDocument
[Code]....
i have imported names from database table into combobox..i want to add item"all" above all names..how can i just add one single item in combobox after populating it form database tabel.
View 1 Repliesthis is the scenario. I have 1 aspx file with a table in it. it has a .aspx.vb file behind it. i want to populate this table from the .vb code. the table shall have many lines (rows) but they should be in this format. also the checkbox data, textbox data and dropdownlist data comes from database behind. how should i go about this?
View 2 RepliesI have a simple windows form that i would like to send the values of a few textboxes and comboboxes to an rdlc report after saving them (I have VS 2005 standard, so no crystal reports) - it's as follows:
-1 form
-3 textboxes - textbox1, textbox2, textbox3
-1 label - label1
-1 combobox - combobox1
-5 buttons - button1, button2, button3, button4, button 5
the textboxes are labeled length, width, height the combobox is labled unit of measure and contains two options - inches or centimetres the label has text of "your total cubic inches/centimetres is:" - followed by the unit of measure selected.the buttons are labeled save, calculate, print, print preview, and exit.Having said all of the above, the save, calculate and exit button code is easy enough and is good to go - it's print and print preview i'm stuck on the solution i'm after is to take those values and send them to an rdlc report that immediately prints (calls up the default printer dialogue) without preview or anything when the print button is clicked and also have a print preview function as well for when of course the print preview button is clicked.The report has already been created with the titles mentioned above..
I am trying to populate a datagridview from a .txt file but I dont know how I can do this.Text file will include data copied and pasted from excel. So the text separator will be tab.
View 3 RepliesI am trying to populate a listbox using 65000 words in a text file for a hangman game, I have looked everywhere for information but cant seem to figure it out. I am using visual Basic 2010, I read something about IO.streamreader but could not figure it out. I created a txt file in my.resources with all the words i want to use to populate the listbox. I also saved a notepad version of the list in my debug folder for my project.
View 14 RepliesHave a main form with textboxes on it. When the user clicks a hyperlink on that main form it pops up a new form that they drag and drop files to either a listbox or textboxes, that part works fine. All the seperate form is doing is simply grabbing the filename to bring back to the mainform. That is working correctly. What it is then supposed back on the main form is read the files, again the reading part is working fine, based on the read it's supposed to populate the textboxes on the main form. When I have the listbox that the user drops the file into on the main form rather than a seperate form it works fine, form size limitaton and aestetics are why I'm using a seperate form. When I debug it it's working fine, I can't figure out where it's dropping the info because line by line it does everything right and it shows the values in debug correctly, however when the main form regains focus the values do not appear as they would if I loaded the file directly into that main form.
View 1 RepliesI have an output file that I need to pull the current date in as a 'default' for the user. I know I can set the text over in the Properties Window, but how do I include a variable that changes based on the system date? For example, if I created the file today it would be:
File12042009.txt
I know how to format dates, I'm just not sure how or where to enter the code. Should I double click the SaveFileDialog and code it there? If so, how do I specify that I want the FileName = SystemDate? I'm not sure how to specify that I want to change the FileName property.
I'm sick today and cannot think straight but I have to get this done. I have an array: newarray() I need to populate this array if a condition applies as such:
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I'm working on a new version of something I had created years ago in VB6. What I was doing then is populating a combobox with lines from a sequential file ("title","URL") like this:
Open "data.dat" For Input As #1
Do While Not (EOF(1))
Input #1, NameInput, URLInput
cmbEntry.AddItem NameInput
Loop
And then checking against it on a button click to load the URL associated with the selected name:
Open "data.dat" For Input As #2
Do While (cmbEntry.Text <> NameInput) And (Not (EOF(2)))
Input #2, NameInput, URLInput
Loop
[Code] .....
What I'm trying to do in Visual Basic 2010 is the same process, though I'll be including a third field ("category","title","URL") to determine which one of four different comboboxes I add the entry to. I know I need to use streamreader, but I'm not finding much in the way of documentation or examples on how to do what I'm trying to do, which is:
- Populate one of four comboboxes with the second value in each line of an external text file, based on the first value in that line
- Set a string to the third value in a line of an external text file, based on the second value of that line
How to read these values from the file.
I am making an appilcation which displays images from a target folder. It was orginally using an sql .sdf file as its data source but the data source has been changes to a .mdb access database.The code does not seen to update the tabe, and being pretty new to this would like some help on how to do this as currently the code is stating the following error:Object reference not set to an instance of an object.This is the code which allows the customer to choose a target folder to display the file images, but the files will not update to the database: [code]
View 3 RepliesI coded in it along time ago, back in middle of the 90's, but not heavily, so I don't remember that much, and never really worked with databases or file import/export. I'm trying to write code in to take my table or recordset thats active and export it to a XLS file.
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I Want to populate a combo box in vb 2008 with mysql, but when i run the thing that appear is "System.__ComObject"..kindly check the errors..
Dim conn As ADODB.Connection
Dim rs As ADODB.Recordset
conn = New ADODB.Connection
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I would like to populate a drop down list using values from the database. I would like to know how I can add to the dropdown list both the display member and value member straight all from the database
Display Name: Account_Name
Member Value: Account_ID
I am trying to populate a datagridview with the content of a text file.
the text file contents are as follows:
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I get no error while building the project. The textline variables are being populated correctly.
I have the following dataset and datatable:
Dim topics As New DataSet()
Public Function JT_PullData(ByVal TableName As String) As DataTable
If topics.Tables.Count >= 1 Then
topics.Clear()
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I am supposed to set the dataset and then set the values that would be shown.
Imports MySql.Data.MySqlClient
Public Class Form2
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim conn As MySqlConnection
[code]....
I can't quite figure out how to populate the dang list with that code, am I doing something wrong?
What I want it to do, is when a id is selected to be modified, another form will pop up with the fields are filled in with the relative data. Every time I run this I keep getting the following error -- "Syntax error in string in query expression '(the wombat ID selected)'"when it gets to the following line of "fillformDataReader = fillformCommand.ExecuteReader()"What is going wrong and how do I go about fixing this error so the new form is populated with the correct data?
Dim fillformCommand As New OleDbCommand
Dim nameView, idView, regionView, sexView, ageView, weightView, lengthView, sampleView, commieView, descriptionView As String
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I have a large csv file that I want to read into my program and sve it to a SQL database table.I'm useing VB2008 and my dabase is SQL2008.
View 2 RepliesI have a VB project that reads data from SQL as well as pulls data from other files into SQL. I need to import a text file into SQL table; there is no headers in the file and table in SQL is already exists. I found a code in Forum and slightly modified it, but I'm still missing something. I'm not sure how to specify that the text file is delimited with "|" character? Also - since there is no headers - not sure how to import it into correct columns? On the code below I'm getting "Insert" syntax error; on prior version of the code I was getting "field F1 doesn't exist".
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i have a jpeg file which contains table of 10-15 rows...i want to read it through vb6 and save it in database table..
View 1 RepliesI have a form with a DataGridView and ComboBox, both of which are populated with data from an Excel spreadsheet, the source is unbound. My problem is in repopulating the DataGridView with data from another worksheet in the same Excel file when the user selects the corresponding value from the ComboBox. For example if they were to select January from the ComboBox then the DataGridView would load in and display the data contained on say Sheet2, selecting February would load Sheet 3 and so on. I am running Visual Studio 2008.
View 6 Replies