because I'm new to vb.net .I do have problem, I cannot save data from datagrid to excel. I use inputbox so user can input data to datagrid. Then the user can click the button to save it to excel. Can someone please show me some code on how to create that?
View 15 RepliesI'm new to vb.net. I cannot save data from datagrid to excel. I use inputbox so user can input data to datagrid. Then the user can click the button to save it to excel.
View 2 RepliesI'm using the 2008 express edition. Now, I created an application that will allow the user to choose transaction in the combobox.text and input its price and quantity using an textbox.text. When the user click button1, it will be push in the datagrid/datable I created. And when the user click the button2, it must be save to excel file. The only thing I need is how to save the data from datagrid/datatable to excel. This is my code.
Imports System.Data
Imports System.Data.SqlClient
Imports Excel = Microsoft.Office.Interop.Excel
[Code]....
I am creating an app to grab data from excel and preview in datagrid. From the datagrid I want to be able to save to a sql table. I have the excel data in a gridview via a dataset. What I am having trouble with is the sql statement. I know how to insert data, but I can't work out how seperate the data in the dataset to pass it into individual Values of the insert statement. Or should it be done another way? NOTE: I is not essential that the excel data be previewed in the gridview if this would make life easier for me.
Here is my code so far:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Grabs data from excel sheet and stores it in datagrid.
Dim ds As New DataSet
Dim da As OleDb.OleDbDataAdapter
Dim con As New OleDb.OleDbConnection
[Code] .....
Importing an excel file?first the program should be able to browse for an excel file and then,the values in an excel file will be imported to the datagrid and save all the data in the database.
View 4 RepliesI have this code that I got that exports data grid view in excel but I want to use save file dialog in saving the excel file. [code]...
View 1 Repliesi'm using visual basic 2008 express edition and having a problem in saving the data i've added in datagrid to excel. i use inputbox to add data into the datagrid. when i click the save button, the data from the datagrid must be save to excel. this is the code i get from some forum and i already edited it but it only saves the last data/row i inputted.
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i want to binding excel data to a datagrid without no header, just the data.for example :my excel files consist of 3x3 matriks data in 3x3 excel cell like this
1 2 3
4 5 6
7 8 9
and i want to show all this data on data grid i have tried with some code like this
Dim MyCommand As System.Data.OleDb.OleDbDataAdapter
Dim ds As New DataSet
MyConnection = New System.Data.OleDb.OleDbConnection("provider=Microsoft.Jet.OLEDB.4.0; " & _
[code]....
but the first row of that data ( 1 2 3 ) is not shown up in the datagrid, just the 2nd and the 3rd row that shown up in datagrid?
Here's my connection
Public cnn2 As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\TSA-RMS\TSA-RMS\database\tsaDb.mdb")
Public da As New OleDb.OleDbDataAdapter
Public objcommand As New OleDb.OleDbCommand
[code].....
By the way. How am I going to make my program locate the database even I transfer my database on other drives? I am having a hard time debugging the program after transferring my program to laptop. Database error always occur after transferring.
I am creating an ordering system but when i try to add a new customer it allos me to add but it doesnt save to the database and i can not also call it up the
[code]...
I am working on exporting some data to a DataGrid (with no luck). So far I have:
[Code]...
When this runs, I get an error message that says: System.Data.OleDb.OleDbException: The Microsoft Jet database engine could not find the object 'Sheet'. Make sure the object exists and that you spell its name and the path name correctly. The excel file has only one sheet that is named "Sheet", and the location specified in the connection line is correct. Any ideas on why this may be happening?
This code works well however when data is exported to excel in one field some values are wrong. Instead for example populating 16-12-19 it populates 43815, 01-03-99 it populates 36220. Again, if the sort code is like 20-72-68 or 60-01-22 it is populated the same way, which is correct. If the value is a date lookalike then this problem appears, but if not then the exact value as displayed on the grid is shown in excel.
I inserted the code (highlighted in red) to set all the fields as text values. Right, it is exported and when excel spreadsheet is opened the field property is text, but the problem still exists. Why doesn't excel display it as it is displayed on the datagrid and database, instead of changing it even when set text.
[Code]...
I am working with Vb.net and this code below works fine. However, when I review the data exported to excel I have a problem with one particular field i.e., sort code. Sort code in the database is in the format 00-00-00. Therefore if it is 12-11-09 or 11-01-66, a look alike of a valid date it is disaplyed as 12/11/2009 and 11/01/1966 in excel after the export. Excel thinks its a date which is incorrect. I expect it to show 12-11-09 and 11-01-66.
Private Sub ExporttoExcel()
'verfying the datagridview having data or not
If ((DgvQuarCommit.Columns.Count = 0) Or (DgvQuarCommit.Rows.Count = 0)) Then
[code].....
I am having a problem using ACE. I am on Windows 7 64 bit and I am using Visual Studio 2010. I have inherited a program that needs to be converted from using JET to ACE as more and more users could not use it on their new computers. All this little application does is sort data according to selected fields and then insert blank lines whenever the data changes. It worked fine with Jet built in VS 2005.
Line 32 is where I am getting trouble. I get one of two error when I get to this point "IErrorInfo.GetDescription failed with E_FAIL(0x80004005) when targeting any CPU. I found suggestions from people on the web to target X86 in the advanced compile options but then I get 'Microsoft.ACE.OLEDB.12.0' provider is not registered. This I think is due to the system looking for the 32 bit version of ACE but I am using the 64 bit.
When reading through the code the line da.Fill(dt) is underlined with the comment "Variable 'da' is used before it has been assigned a value. A null reference exception could result at runtime." This confuses me as I declare it at the top and it gets used in the if the statement. The only reason for the underline I can see is that there is no option in case the incoming data is not from csv,xls or xlsx but since the open file dialog doesn't allow for anything else that shouldn't matter.
Private Sub btnProcessFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProcessFile.Click
Dim con As OleDbConnection
[Code].....
i have here a code for browse button [code]everytime i hit the view button a message box comes out saying exception HResult 0x800A01A8 also the excel file opens. i dont want the excel file to be opened.
View 3 RepliesPrivate Sub btnbrowse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnbrowse.Click 'prompt user to select Excel name and folder path
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I finally got this code to work after hours of toiling:
[Code]...
Now that I figured that out I was going to try and place the data in a specific location. On my application I have a datagridview set up with 4 columns. What I would like to do is put column A of the excel file under the 1st column of the datagridview and column C of the Excel File in the second column of the datagridview.
[Code]...
I have a problem loading big spreadsheets into a datagridview.
I had a similar code as above that i used and it works great if you have say 10000 cells to populate cell by cell.
How ever moving to 2 mil cells is a different cup of tea, the code took more than 7 minutes to load the data, and although the data was perfect in every way, its too time consuming, i cant get it to work faster so I used the datagrid instead.
The sheets needed to be imported is 350,000 cells plus. I used code that works realy great, does the import into the grid and transfers the data to a datagridview within 15 seconds with little resources which put a smile on my dail :) then i saw something and it dropped ...
see code:
[Code].....
My problem is that whenever there are values below the heading of the cell the datagrid displays (null)
No matter what i do even converting the values in excel to text it does not display the heading of that column.
When i paste other text into the cells below the heading (NOT NUMBERS) it shows the data and heading, Only if the "type" of content is the same does it display both the heading and the text that follows in rows below.
I would like to Import data from multiple sheets in a workbook. With this following code I get the this error: "The MS Jet database engine could not find the object 'Sheet1$' Make sure the object exists and that you spell its name and path name correctly." The name and path are correct, the error ocures in the highlighted statement. The sheet name is Sheet1
[code] Private Sub ExellFrm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim MyConnection As System.Data.OleDb.OleDbConnection
[Code]....
I am trying to retrieve data from Excel spreadsheet and fill DataGridView with it for display prior to updating SQL SERVER Table with DataGridView Row individually. I have not done this coding before and encounter this error message Public member 'WorkbookOpen' on type 'ApplicationClass' not found.[code]...
View 18 RepliesI'm currently attempting to save data inputed into a data grid clicking the "save" button. My problem is, I also have another DB opened in the same window that also needs to be saved. The second database is pulled up by the contents of a text box, so there for it has no real Dataset to call on. It looks something like this.
[Code]...
I try to run the update command it always throws the exception "Cannot find table 0" or "Update unable to find TableMapping['Table'] or DataTable 'Table'." I tried declaring the connection the same way as the code above and then simply calling the da.update(ds) but it wouldn't do anything.
I am trying to gather some information about exporting data contained in a datagrid to an excel spreadsheet. I am not using ASP. The number of rows and columns are not set(fixed). If someone was able to point me in the right direction or even better a quick example. I have search through previous threads and am unable to find any that relate to exporting from a datagrid on a windows form to an excel document.
View 15 RepliesI have the following code which works fine. However, I want to change one format when I export it to excel ..
Colum 3 is Sort Code and have the format 00-00-00, I want to change it to 000000 i.e., remove the dashes.
When exported to excel I use a formalue (Substitute(A1, "-", "") and this removes the dashes. But what I want to do is remove the dashes before exporting to excel... see the code below for datagrid - excel export, highlighted is where I think the one line code should be...
Code:
Private Sub ExporttoExcel()
'verifying the datagridview having data or not
If ((DgvQuarCommit.Columns.Count = 0) Or (DgvQuarCommit.Rows.Count = 0)) Then
[Code]......
I am working with Vb.net and this code below works fine. However, when I review the data exported to excel I have a problem with one particular field i.e., sort code,( Columns (2) ) Sort code in the database it is in the format 00-00-00. Therefore if it is 12-11-09 or 11-01-66, a look alike of a valid date it is displayed as 12/11/2009 and 11/01/1966 in excel after the export. Excel thinks its a date which is incorrect. I expect it to show 12-11-09 and 11-01-66.
Private Sub ExporttoExcel()
'verfying the datagridview having data or not
If ((DgvQuarCommit.Columns.Count = 0) Or
[code].....
I want to transfer the data in datagrid to excel in runtime in vb.net
View 3 RepliesI am trying to retrieve data from Excel Spreadsheet to fill DataGridView for display prior to updating SQL SERVER using DataGridView Row individually.But the coding is not working as this is the first time I done the coding.
this code snippet generate this error message
If objSheet.Cells(excelRow, 0) = "" Then
Endif Exception from HRResult: 0X800A)3EC
[code].....
this is a reference to the thread:he problem I was having while loading data into a datagrid from Excel is solved when I have changed the connection string property IMEX to 1 in:
HTML
con = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & filename & ";Extended Properties=""Excel 8.0;HDR=Yes;IMEX=1;""")
[code].....
i've made a small tool that searches an access DB in back end & dumps the results in a Datagridview, now i want to export those results to excel, after googling i found a code that does it for me , it's working partially for me. It writes the Headers to a new excel file but then for some reason i getting below error (on the blue line in code):
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I finally got this code to work:
vb
Dim path As String = OpenFileDialog1.FileName
Dim myDataset As New DataSet()
Dim strConn = New OleDbConnection("Provider=Microsoft.ACE.Oledb.12.0;Data Source=" & path & ";Extended Properties=""Excel 12.0;HDR=YES;IMEX=1""")
Dim myData As New OleDb.OleDbDataAdapter("SELECT * FROM [Sheet1$]", strConn)
myData.Fill(myDataset)
DataGridView1.DataSource = myDataset.Tables(0).DefaultView
Now that I figured that out I was going to try and place the data in a specific location. On my application I have a datagridview set up with 4 columns. What I would like to do is put column A of the excel file under the 1st column of the datagridview and column C of the Excel File in the second column of the datagridview.
So replace:
vb
DataGridView1.DataSource = myDataset.Tables(0).DefaultView
With:
vb
DataGridView1.columns(0) = myDataset.Tables(0).columns(0)
DataGridView1.columns(1) = myDataset.Tables(0).columns(2)
Obviously this doesnt work, and something tells me I might need a for loop to import the data, but I have never imported information from an Excel file before and to make it worse I have never worked with datagridviews before so I have no idea how to go about this.
I would like to do something like this if I could:
vb
For x = 1 To xldoc.rows.length - 1
DataGridView1.Item(0, x).Value = CType(xlDoc.Cells(0, x + 1), Excel.Range).Text
Next
I have an application which opens one of several excel templates, fills a datagrid view with Excel Named Range data. Once the data is modified in the application I neet to save it to an excel spreadsheet. I currently have the following working:1. This sub writes 2 columns of data (Ingredient) and (Result) from those named ranges and places them in the datagrid
Private Sub CboBoxTypeCofA_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CboBoxTypeCofA.SelectedIndexChangedWorkbookTemplate = ""CofABook = ""
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This code works and the only problem is that after running the code the excel application does not close.Now I need to write the completed updates from the datagrid view and the other controls back into a workbook.Ive been searching around but have not found the proper way to do this and how to kill the oexcel application in the code above.