Exporting Datatable Into Excel Using Vb.net Code Behind?
Mar 16, 2010
I've been working on this for a while and everything that I have read seems to tell me to use the same setup. I have been able to export the data to an xls file on my local C drive but that won't work when hosted on the server as I'll want users to export their data to their local machines as well... I guess the issue I'm having (or at least what I think am having) has to do with my response.end() function. I'll give you my code that works and the one that doesn't... In the end they will both do the same thing...Here is the code I've been playing with for my button:
[Code]....
Now here is where it will at least save on my local drive via a button in my drop down menu:
[Code]....
I need to prompt the user to save the file to a location and perhaps be able to name the file etc
I've created a function that takes a datatable and exports it to excel by creating a Table.
When the file exported excel says "this file is in a different format than it's extension, do you wnat to open it anyway?". I'd like to get rid of this message if I can. and...There is an extra row at the top of the the excel file (row 0) and it's empty.
My datatable has 0123 when I export it becomes 123, Datatable can be numeric or alphanumeric, after searching I got this link [URL] ....
I didnt managed to use your code in DataTable.
My Code.
dtExport is my DataTable DataGrid dGrid = new DataGrid(); dGrid.DataSource = dtExport; dGrid.DataBind(); StringWriter sw = new StringWriter(); HtmlTextWriter hw = new HtmlTextWriter(sw); dGrid.RenderControl(hw);
I catch the error of "Property Evaluation Failed" for the sentence "Response.End" in the following code.
Sub exportToExcel(ByVal _DT As DataTable) Dim dt As DataTable = _DT Dim attachment As String = "attachment; filename=userlist.xls" Response.ClearContent() [code]....
I've got an .rdlc report which I print from my .net app (C# Visual Studio 2005), where I use a RemoteReportPrinter object. I give it as parameters the server name, report name, report parameters, etc. Works fine. My question is, I would live to do an analagous export of that report to Excel. Set it up exactly the same, but have it export to Excel rather than print, probably using some other type of object than RemoteReportPrinter.
I'm exporting a Gridview to excel. I get all the gridview header and content in excel in addition to that i need to add a header text like report name in header of the excel sheet with line break in header.
I tried the solution in this link [URL] by adding
Table.Caption = "Header Text" Table.CaptionAlign = TableCaptionAlign.Top but i get error Reference to a non shared member requires an object reference.
Now the same code when I copy it in my project having masterpage . there is no compiler error but it is genereating excel file withno data in it but in fact there is data in the grid view at runtime.
I have a project in vb with a gridview in a multiview and i want to save in a workbook excel the gridview displayed data. I have read many articles but in the end i have downloaded the code from URL...and i adapted for my code. The problem is that when i press the ExporttoExcel button it's exporting only this...I cannot figure out that is the problem.
is there any way that i could export multiple tables already formatted into multiple excel sheets. I know how to export data to multiple sheets through dataset while looping through tables, rows and columns and then add styles.
But I really want to export formatted html tables each into seperate sheet
trying to export a dataset to excel directly. I'm repeating, it's a dataset to excel (NOT DATA GRID OR GRID VIEW TO EXCEL). The problem I face is formatting. I'm exporting the excel which has aroung 13 columns.
A column should be in dd/MM/yyyy 00:00:00 format. Time will always be 00:00:00. It is exporting in correct format only, but for example when the date is Jan 05, 2010, when it comes from database it shows correct format as05/01/2010 00:00:00. When it binds, it binds as 5/1/2010 00:00 which is not suppose to happen.
I have multiple gridviews to be exported to excel. 1 gridview per worksheet.
How to do that ? ( or in general how to write an html string to a worksheet )
This is to be done in asp.net , server side.
I can create multiple worksheets via epplus.codeplex.com nicely, but it works on cell level. I could export DataTable, but how to export Gridview's HTML ?
On two of my web forms I have the ability to export a gridview to an excel file. On my local machine. it works. So when I click an image button it gives me the option of opening or saving a gridview as Excel.
However, when I run on the web server. It does not give me the option to open or save, it just opens the gridview as an excel document when the button is clicked.
Even stranger: I have this running on two separate forms. On one form when it opens the gridview as an Excel file it includes a tool bar, so that If a user wishes they could do a 'file', 'save'; However the other one does not have a tool bar?
Ideally I would like them to get the prompt like on the local machine, to open or save.
I have a .rdlc report created in Visual Studio and Upon executing, I wish to have the user be able to export the resulting data to Excel. How would I go about doing this
but not working properly and on opening the file it gives following error "Excel cannot open the file 'ChangeRequestList[2].xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file"
So im trying to develop a web-based site that allows a set of charts to be created about different informationNow i need to use this information to generate some charts (most likely throught excel) and then export all of the charts to a word document. The problem im finding is how am i able to send all the charts to word and format them to put multiple on one page and formatted to certain locations. Is there a way to do this or will i be fored to send them to word and then open that document and organize them myself.?
I am binding data from a dataset to a grid and exporting data from the grid to an excel.if the the number of items in the grid is greater than 50000,an error message is displayed.
So i want to split the data and display it in different worksheets in excel.(Am working in a web application)
using this code for exporting to excel
gvExcel.DataSource = DTS; gvExcel.DataBind(); Response.AddHeader("content-disposition", "attachment; filename= filename.xls"); Response.ContentType = "application/excel"; StringWriter sw = new StringWriter(); HtmlTextWriter htw = new HtmlTextWriter(sw); gvExcel.RenderControl(htw); // Style is added dynamically Response.Write(style); Response.Write(sw.ToString()); Response.End();
I have a asp.net page that generates a report. For better or for worse, the entire thing is generated using nested tables. I am able to export the page to excel, however I lose all my formatting (can't set column widths, etc). Is there a way to handle this? I'm open to adding any goofy MS Office -specific tags that are required to the html side of it.
If this isn't feasible and if anyone has any other ideas, the requirement is that users need a report that:
a) They can manually touch up with some personalization / area-specific data
b) Needs to be hide/show columns based on user's location
well I am trying to export sql data that has 80,000 records more than 65,000 rows which excel has.i do I export that much data in one trial without error.is it posible with bcp utility?
I tried DTS but did not work what option shall i use to define range in excel file to export data ?
i did the mysql data export into excel in row wise when button click... here i want the same data export into columns wise..i used datatable and dataset for this function.. here i need all data should export in column..here i used some code..
The following code is a short version of a process to export data from Sql Server to Excel. I am moving 300k of data to excel and am having to divide it up into 65500+ blocks. This is not a problem in classic asp but .net does not seem to like this method. When ExecuteNonQuery() executes the insert statement each time through the loop it really slows down this process. Otherwise in runs in seconds commenting out ExecuteNonQuery(). Also it looks like the excel file does not grow until the very end. I would think it would be inserting every time it did ExecuteNonQuery(). Do I have something wrong here or should I do a completely different method for this?
using (SqlConnection conn = new SqlConnection(sqlConnString)
