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 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 have 1 combo box and 1 textbox and an excel file. I need to populate the combo box through the data from my excel file which is EMP_ID and I managed to do that via OleDb.
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I am having problems reading the contents of an excel file into a combo box I am using the following code but the only thing that is populating the combo box is "System.__ComObject"
XLbook = GetObject(pthSup & "offices.xls")
XLsheet = XLbook.Sheets("Offices")
Dim i As Integer
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I am relatively new Visual Basic and programming in general and I am trying to update a program I wrote for AutoCAD in VBA to the .NET frame work
I am trying to get my head around datasets, etc. The following code pulls data from an sql server and stores it in a data set. I then set the grid's datasoure to this data set. Now I want to populate a combo box on 'form load' with information from a field (surname) within the authors table.How do I approach this? I can do it in design mode but I want to do it in code as I feel you get a better understanding of what is happening under the hood.
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I am trying to create a unit converter program. At the moment I'm trying to populate my combo box with results that have been calculated. I have two sets of results to display. I want them displayed side by side and have been trying very hard to do this. So far I've managed to get the result to display but only the original unit, it's start, increment and end value. Not the converted unit, start, increment and end value.
Then I managed to display both the original inputs and the converted inputs but they were showing directly below one another instead of being seperated into two seperate columns, i.e. original input, start, increment and end and the converted unit, start, increment etc.
This is the code snippet I am working with:
lstTableResult.Text = "" + (FormatNumber(lcInputValue, CInt(mdDecPlaces))), "" + (FormatNumber(lcResult, CInt(mdDecPlaces)))
The code above is incorrect and shows errors, i.e. is asking for end of statement.
The code below works, but it is only one code line, I've just split into two to make it work... not what I actually want.
lstTableResult.Items.Add(FormatNumber(lcInputValue, CInt(mdDecPlaces)))
lstTableResult.Items.Add(FormatNumber(lcResult, CInt(mdDecPlaces)))
I am using the following code for populating the combo boxes in my application. It is really nice. If any one requires, may use this. It takes three parameters. The first, the name of the Combo Box and the second, the SQL Statement to populate the combo box and the third is the number of column to be displayed (from the SQL statement)
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Recently started working with VB.NET, and I'm just playing around with the controls and everything. What I want to do, is populate a drop-down list or a combobox (on program load) with data from a dictionary. I'm used to php, so I tried a for each dictionary.items as newitem combobox.items.add(newitem) but I can't get it working. Can someone give me an example of this? And what if i wanted only the key to show in the drop-down, and the corresponding value shown on a label besides it when I make a selection?
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I thought I would have a go at creating an inventory system - as I can learn VB.net on the way and its useful to use. The first hurdle I have come across is I would like to link a combo box with active directory to populate the name of who is requesting the stock item - can anyone point me in the right direction of how this is done please?
View 4 RepliesIf I want to populate 3 text boxes with information such as name, quantity on hand, and price from the selection of a combo box. Is there some all around code where I can get the information from the text file to VB .net ? Ive heard use arrays, then I heard arr file and none of these are seeming to work yet can some one please help me.
View 14 RepliesHow can we add a list to a combo box from a txt or excel file when entering an account number. the details must only be displayed for each defferent acount information. for example. account no 3332 must show a name and telephone number in to separate comboboxes. although it must contain lets say 4 telephone numbers and 4 names that are located in a text document.
View 2 RepliesI 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?
I am building a form in access database.
I have a combo box which is linked to a query which is looking up a unique reference number from a table called Tbl_Submitted_Requests.
What I need the form to do is auto populate the other text boxes when the user selects the unique reference from the combo box. How can I get the text boxes to auto populate with the data that is associated with each unique reference?
i Have this code which populates a number of combo boxes from an excel document, the problem is that it only populates the 1st three lines, does anyone know why this is??
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I am populating excel from a data grid view. Everything works fine except that header does not show in excel (just details).
Dim wapp As Microsoft.Office.Interop.Excel.Application
Dim wsheet As Microsoft.Office.Interop.Excel.Worksheet
Dim wbook As Microsoft.Office.Interop.Excel.Workbook
wapp = New Microsoft.Office.Interop.Excel.Application
wapp.Visible = True
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My program handles XML files that have certain elements within a root-child node that are identical expect for their inner text value. So while populating my combo box with all of a root-child's child element's names I get like five identical items listed. Which brought about the problem of selecting say the third item and getting the value of the first displayed. So I came up with a loop function that determines if the selected combo box item is preceded by one of the same name, if it is, then it adds +1 to a counter variable and keeps checking farther and farther up the list. Once it loops to an item that doesn't have the same name it exits and it reads the Xth (X = counter mentioned earlier) element's inner text from the file. This works great for elements 1, 3, 4, and 5. But not for 2. A while back when I was focused on this problem I discovered the root of the problem but I was unable to circumvent it. I'll put the loop below so you can see the problem in action instead of trying to follow my verbose explanation:
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I am uploading an excel file to my app and want to read it. Do I need to have excel loaded to read this?I am getting an error of Object reference not set to an instance of an object.
Public Function GetExcelData(ByVal ExcelFilePath As String) As DataTable
Try
Dim OledbConnectionString As String = String.Empty
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I want the files names in a specific folder to show in a combox box. How can I accomplish this?
View 1 RepliesPrivate Sub FrmTestMid_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim myfile As System.IO.File
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saving data from a text field and multiple combo boxes to a file on a server in visual basic 2008
View 1 RepliesI'm a noob to VB, so new in fact I had posted a question to the VB6 and earlier, I do believe I am using .Net Anyway, as I say, I'm new to VB and am hoping somone can help me. I am trying to pass data from an excel spreadsheet into a combo box, I've added the reference object library. Here's the
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To run this you'll need a combo box, and an excel spreadsheet added to your desktop. Of course you'll need to change the path to the spreadsheet to whatever you choose. After doing so, I get an error that I don't really understand.
I need some help displaying the contents of a cell in excel into a combo box. I've been able to display if the contents of excel are numbers but can't seem to figure out how to display text.
View 1 Repliesim trying to pick up Visual basic on my own with no friends/family that have any programming experience.. I'm struggling (surprise surprise)Heres what I'm trying to do...I have 1 combo box, It will list product names.. Lets say 15 of them.. (I know 15 i could just as easily specify them individually within VB.. but lets assume I NEED to read them from an excel file.(Excel 2003)
Part 1 :Really all i need to know for now, is how do I load an excel worksheet into VB so I can call data up from the cells / rows / columns..
Part 2 : How do I define Which Cells from Each row or column I want to populate into the combo box... Presuming for the "Product name" combobox I have placed each of the 15 product names in the excel file under Row 1, column A through Row 15 , Column A.I want to avoid this and just call the xls file into VB. (Excel will be installed on any computer running this application if that matters. )
I need to populate a Combo Box with sheet names in an Excel File. I Have an openfiledialog that i search for the excel file and put the dirPath to a textbox, now i need to populate the ComboBox with the sheets in that file, the idea is so when i select sheet3 in the ComboBox, i can pass that sheet name to the string for processing.
View 4 RepliesI have a text file and I want to take the data from the text file and write each line into the excel file (into the same column). How do I accomplish this? I know how to read data from a text file, but I don't know how to insert the data to a excel file..
View 5 RepliesNovice VB user, trying to create a pop up msgbox upon opening a file, whereby the user selects from a list (of available options), the choice then gets entered directly into a cell reference. I have seen this before and know that it's primitive programming but i'm still a learner.
View 1 RepliesI 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.