I need to export data from excel to datagrid and have done it..whole excel data is displayed in datagrid..coding but i got an error when Conversion from type 'DBNull' to type 'String' is not valid coz' i have some null data in my excel file
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I'm trying to export a datagridview to Excel and open the Excel spreadsheet (not SAVE the worksheet).
Public Sub ExcelRpt(ByVal DgvName As GridView, ByVal url As String)
Dim xlApp As Microsoft.Office.Interop.Excel.Application
Dim xlWorkBook As Microsoft.Office.Interop.Excel.Workbook
Dim xlWorkSheet As Microsoft.Office.Interop.Excel.Worksheet
[code]....
I found this Code Snippet GridView Export to Excel, that works but does not export the last column and is a little slow.
Private Sub ButtonExport_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonExport.Click
Dim rowsTotal, colsTotal As Short
[code].....
this whole code was working before and i don't know what happens..Trying to export to excel.
[Code]...
I am creating a db with an interface from VB.Net 2008, what I need is to export to excel from a datagrideview by clicking on a button. I have found a code but its giving me errors, I posted the code maybe u can find the error or point me to another method
Imports Excel = Microsoft.Office.Interop.Excel
Imports System.Data
Imports System.Data.SqlClient
[Code]....
i have a datagridview in vb.net that is filled up from the database. I've researched and i found out that there is no built in support to print directly from datagridview. I don't want to use crystal report co'z im not familiar with it.
View 4 RepliesI use this code to export my datagridview to excel. bu this does not give the user the posibility to choose the location or the name of the file. How can I do this?
Private
Sub
Button1_Click(ByVal
[code]....
I have done a google and see that many people have asked the question on how to export a Datagridview to a Excel (.xls) file. For some reason I cannot seem to get it to work (i have gotton the program to open an Excel and save it, all hidden in the background). I use a bit of the coding from this source code [URL] but modified it and incorporated it into my program. It connects an OLE Database connection with the excel sheet... but what i want to do is beable to alter the sheet in the datagridview and export it back to an excel sheet. I am not trying to sound pushy when i say this but... if you download the source file i am using you will get a really good idea of my situation..
View 5 RepliesI'm using OLE to connect to a database using VB.NET, and show the results in a DataGridView. I want to export the data that is in the DataGridView to an Excel format file, i.e., the user can save the content of the DataGridView as MS Excel file.
View 2 Repliesam having a problem with these lines:
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim xlWorkSheet As Excel.Worksheet
[code].....
I want to export data into datagridview to excel, but i want to load office library in runtime: i have wrote an application that use office com library and export correctly all datagridview data to excel, but now, i want to use office in runtime, so i don't want to have a reference project of excel library.
Is it possible to load a com library in runtime and use that?
I'm trying to export data from a DGV to an excel workbook...
I have the code below which works perfectly and is ok (although a bit slow :*( )
What i really need to do is start a new worksheet every time there is a red row in the datagridview... i.e. the worksheet seperators are a row of red background color cells.[code]...
I am trying to export a datagridview to excel.
Right now, I am using:
Imports Excel = Microsoft.Office.Interop.Excel
Imports System.Data.OleDb
Imports System.IO.File
[Code].....
I seen some threads about export to Excel, but I tried all of it and nothing worked.I need to export the data on a DataGridView to an Excel (97 if it's possible or 2003 if not) sheet, using VB2010.
View 10 RepliesI've google so many examples but none of them work. Well they do but they don't perform the way I need it to:
1) Check if excel file with specific file name exists in application.startup path
2) If doesn't exist, then take DataGridView contents (including header names) and write it to a new excel file
If exists, then take DataGridView contents and append to the existing excel file (excluding header names)Can someone for the love of VB.NET paste some code that can do this? I've been at it for 3 days with no sleep and nothing has worked so far I make the smallest changes to code I find online and the bloody thing doesn't work anymore. I don't know why it does that...I already have Imports.Microsoft.Office referenced to my project so I can create Excel Applications on my form.
i have a form with DataGridView to show table from database. is it possible for me to add a button then when click, the data from the DataGridView will export to a new excel file?? if possible, can teach me how to do it?
View 1 Repliesam having problem in saving datagridview data to excel file.. i have import excel namespace into my project but it shows
error : Namespace or type specified in the Imports 'class2' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases.
Imports Excel = Microsoft.Office.Interop.Excel
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
[Code].....
i have displayed my table contents in datagirdview in windows form application using vb.net. my database is ms access. now i want to export these records into MS word or MS excel. how do i do that? any open code out there?
View 1 RepliesI am using this code i found from links on this site to export data grid information to excel. it works great! I am trying to figure out how to first write the column headers to excel and then the data in the columns.
Private Sub exportExcel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles exportExcel.Click
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
[code].....
Export Excel From Vb.net Datagridview With Column Headers
View 3 Replieshere is my code i got an error when i try to save the file
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim saveLocation As String = String.Empty
[code].....
I'm exporting a datagridview to excel. The first column is a Date (not DateTime) which appears like '2/15/2011'. After exporting the datagridview to excel it appears in excel as '2/15/2011 0:00', furthermore the first 68 rows in excel appear as '6/14/1898 12:00:00 AM'. Where is the time coming from? The column type in the database is date. I've attempted to edit the cell style of the datagridview column to date. I've attempted to figure out how to pre-program the formatting in excel, but it's not working either.
Dim wapp As Microsoft.Office.Interop.Excel.Application
Dim wbook As Microsoft.Office.Interop.Excel.Workbook
Dim wsheet As Microsoft.Office.Interop.Excel.Worksheet
[Code]....
i built a patient management software for a clinic and i need to export patiet list from ASP.net grid view to excel file my question is:Is there a way to export gridview to excel i am using vb.net and visual web developer 2010 i store datasource from advanced search page into a session and redirect to result page
here is the code of result page
[Code]...
I am exporting data from vb.net to excel and it is dropping the leading zero when its displayed on excel. How can I avoid the dropping of leading zero? I read the solution of adding a single quote but it makes my excel sheet column ugly. Also users will complain if they see a single quote on zip code field.vb.net code
Response.AddHeader("content-disposition", attachment)
Response.ContentType = "application/vnd.ms-excel"
Response.Charset = ""
the stored procedure outputs XML and it is transformed by XSLT before it is displayed on EXCEL
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<HTML>
[code]....
adding a single quote or manipulating excel sheet with column formatter (general/numbers ) etc. I don't want user to make any changes on excel to get the display properly when the excel is displayed from web page it should be all set with proper formatting. also we have no control over client excel software?
I have an asp:table which I want to exported to excel. One of my fields are alpha numeric and when exported to excel the leading 0s are stripped off. After going through this thread: Validation (CSS 2.0): 'mso-number-format' is not a known CSS property name I would like to use the css method "mso-number-format:@;.But the css is not exported to excel. I just tried to test it with simpler css things like bold font etc but its not getting carried over. I can see that if I surround my asp:Label with tags this change gets carried over to the excel but not the css bold . Other solutions in other thread does not work for me as ="00111" shows up as desired in excel but in the web form it shows up as ="00111" which is not what i want.
View 2 RepliesI need to export Chart(image) and grid (tabular) row data into excel file. I can not use automation because Office tools are not installed in my server. I've found a bunch of free/proprietary tools like:
NPOI
MyXLS
ExcelWriter (softartisans)
JetCell (DevTrio)
Aspose.Cells (Aspose)
But I do not know which one is better for my needs. I need to export not only grid row data but also Chart (image), thats why I am thinking about.
I'm a beginner to VB.net. I have 3 table (Torder, Titem, Customer)Table structure as below.
Order.dbf fields (OrderNo, CustCode)
Titem.dbf fields (OrderNo, Itemno, product)
Customer.dbf fields (CustCode, CustName)
Torder related to Titem via Order No. Customer related to Torder via CustCode. How to output data to excel sheet in this format?
I am using asp.net oledb to export information to excel file. I encounter problems when the information to export becomes too big, in this case the code I have given below, the excel file generated becomes an empty spreadsheet.If I changed the loop to 1123 for insertion of the rows. The generated excel file is fine, 1125 rows, and 4 columns shown.A test program in windows form is also working fine regardless of how many rows.[code]I couldn't find a solution to my problem as well. What I did eventually was to run the process using another separate windows service. The code works perfectly fine running from a windows form or service program, but not asp.net, not sure why.
View 1 RepliesI have this issue that occurs with me and driving me crazy i have a report that contains thousands of records and i need to export it to excel , but the excel normal extension .xls
is showing missing records at the end of the file , so i save my file as an .xlsx extension it saves correctly but when i open the file it generates an error
"Excel cannot open the file '<var>filename</var>.xlsx' because the file format for the file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file."but when i test the file i drag it and open it in an empty notepad all the records shows up correctly
We use a small bit of excel exporting code in our app code at work to export XML controls from our ASP pages into an excel format using the following code:
Public Shared Sub Export(ByRef xml As Xml, ByVal filename As String)
Dim response As HttpResponse = HttpContext.Current.Response()
response.Clear()
[code]....
This is all fine, except we've encountered a rather frustrating bug. If the XML control has a link in it then the export code is called again. We have a button which will say "Export to Excel" from the .aspx page which simply calls ExcelExport.Export(Xml1, "MyFileName") which is in a LinkButton click event.Here's the order of events based on the form submit (selecting filters)
Enter filters
Submit form
Page_Load occurs
[code]....
So the user submits a form which loads up the XML control in a nice viewable XSLT page. Then they click "export to excel" which will give them the page in excel instead, then they click on the XSLT page, for example a link, but the save dialog for excel comes up again. We've gone through the series of events, and if we do not call the excel exporter it goes through the series of events as normal. If we do call the excel exporter it will go through the page load event and unexpectedly go into the link button click event.
