Asp.net - Refactoring: Gridview Export To CSV File
Sep 15, 2009
These routines (vb.net) allow you to dump a gridview to CSV, even if there are templated controls in the cells. It works, but I'm not thrilled with it.
What improvements should I make and why?
Private Shared Function CsvFormatted(ByVal t As String) As String
If t.Contains(",") Then
t = """" + t + """"
[Code].....
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Nov 11, 2011
i have this code it keeps giving me error
Protected Sub Button2_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim response As HttpResponse = HttpContext.Current.Response()
response.Clear()
response.AddHeader("content-disposition", "attachment;filename=XXXXXX.xls")
[Code]....
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Apr 7, 2012
I need to save the results of each search that I run on my database, into an excel file. So it is an iterative process where the new search results are added on as new rows to the excel file in each export. I am running the following code which works perfectly fine but for the fact that each export is saved to a newly created excel file.[code]...
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Sep 23, 2011
I am able to export a gridview to excel, my problem is that I cannot figure out how to remove the formatting from coming over from the girdview. Here is the code I am using to export the gridview: Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]....
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Oct 13, 2010
When I try to change the root namespace of my WPF VB.Net application, I get this error:
'The file "" does not support refactoring and will have to be manually changed. Object reference not set to an instance of an object'
[Code]...
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Dec 9, 2010
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]...
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Mar 30, 2009
I would like to export a GridView to excel, which is easy enough. But above the grid, in Excel, I would like some other information for identification. Can I somehow export things other than gridviews while then putting in the gridview below?
Edit:For some reason when the GridView1 is visible and I try to export, the entire page exports and not just the gridview. Not sure why!
Protected Sub btnExport_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExport.Click
'Create a StringWriter and HtmlTextWriter
Dim sw As System.IO.StringWriter = New System.IO.StringWriter()[code]....
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Nov 18, 2011
I am trying to export gridview (HTML Based) to a pdf in asp.net+vb.net (backend). When I click on the Export to PDF button the download window shows, but when you click on open Adobe reader will open but displays the message
" Adobe Reader Could not open 'test[1].pdf' because it is either not a supported file type or because the file has been damaged ( for example, it was sent as an email attachment and wasn't correctly decoded) ".
The coding for export to pdf is same for 5 different reports of which 4 are working fine, as well as export to Excel is also working fine for all 5 reports. Does it have any relation with the itextsharp dll version? (I am using itextsharp version 3.1.1.0)
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Mar 19, 2012
i have an Excel spreadsheet which I have exported to a Gridview. In my code the table name has to be declared i.e its the name of the worksheet. How can i export excel and select which table i want without hardcoding the table name. i have many worksheets and want to the user to select which table he wants from one workbook.
I am using vb and have a web form.
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Sep 10, 2009
What is the best way to export a gridview into an Excel spreadsheet? This seems easy except that my Gridview doesn't have an export attribute.
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Dec 9, 2010
i tried the code below to make the export to excel, but not working correctly i used this thread link text
HtmlForm form = new HtmlForm();
string attachment = "attachment; filename=Patients.xls";
Response.ClearContent();
[Code]....
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Nov 11, 2011
how to export GridView to Excel on VB.net 2005 please tutorial step by step i have this error when i try to transfer data from my programe vb2005 to excel 2003
[Code]...
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Jan 15, 2012
I am having problem with my coding below when I would like to export the data from GridView to Excel Spreadsheet. [code]...
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Jan 11, 2011
I have a gridview which gets its input from a database with sql. There is a column with checkboxes in the gridview, so you can select which row you want to export. There is also a column that's called "Project Number". When you push the button "Export" the program should figure out which row is selected, get the project number from this row and connect to the database to get the data from the selected projectnumber. I already got the part where it gets the selected checkboxes. But I'm stuck at the part where it gets the projectnumber from the selected row. Must be something with Datakeys I think.
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Jun 1, 2012
Now i am using below code for excel generate from gridview but now its not working because i have added Dropdown checkbox and textbox inside the gridview..
code for export gridview into excel with dropdown, checkbox and textbox values...
Protected Sub Button_ExportDataInExcel_Final_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button_ExportDataInExcel_Final.Click
Response.Clear()
[Code]....
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Jul 6, 2011
I have a VB.Net application and once the data in the Gridview is populated I require it to be exported to an Excel sheet. Access (.MDB) is the database used.
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Jan 28, 2012
Merge Cells in Excel Export From GridView?
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Jun 5, 2012
I am using below code for data extraction from gridview. but now i added edit or delete or update option with image in gridview.. then it does not work... make the changes in below code for the same logic..but delete,edit and update image should not come in my excel... my procedure
[Code]...
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Sep 1, 2011
is there a chance that I change the header name of the exported data from gridview. Below is my code and its working fine. my only problem is I can't change the header name
My code
Dim strFilename As String = Now.Date.Month.ToString + Now.Date.Day.ToString + Now.Hour.ToString + Now.Minute.ToString + Now.Second.ToString
Response.AddHeader("content-disposition", "attachment;filename=" & strFilename & ".xls")
[Code]....
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Jun 10, 2011
I have the following code to export a gridview to excel and the export works just fine. The issue is that no mater what I do it names the file the name of the webform .xls instead of the name I am providing in the code (Team.xls).
Protected Sub btnExcel_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnExcell.Click
Dim sw As New StringWriter()
Dim hw As New System.Web.UI.HtmlTextWriter(sw)
Dim frm As HtmlForm = New HtmlForm()
[code]....
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Sep 1, 2009
I have read serveral tutorials online and seem to be missing something. I am trying to have the leading 0's show up in columns by setting the format to text.
''' <summary>
''' This is required for the grid view to export properly
''' </summary>[code]......
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Aug 25, 2009
I have been able to export data from a query to the xlsx file..howerver those fields which are currency in my sql server 2005 table are currency are showing up in the spreadsheet as text. The column mappings are correct when I look at it in connection manager.
Also Is there also a way to create a new worksheet each time the export is run or does the file have to be already named?
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Jan 11, 2011
Following code below. I will explane what it does and it needs to do.
Its a query that fills a gridview. Everything thats in the gridview needs to be exported to a excelsheet.
I've got it working that when i fill it, it will fil the sheet with only the same line. Im not a prof VS developer.
Code:
Now the problem is the following.
Code:
It need to pick up each line but it only picks up the first line and duplicate's it.
I left the qeury line out for privacy reasons.
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Jan 26, 2010
I am developing an application using VS 2008/MySql and I am trying to export the crystal report on runtime using my own code. I get an error saying:
Quote:Invalid export DLL or export format.
My code is:[CODE].....
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Sep 28, 2009
I use VS 2005 and VB.NET. I have a class A. This class A is an empty class(no functions, no members). I wrote the following code: Dim _a as new A(); Dim code as String = _a.GetCode() In the same situation, the C# refactoring tool in VS 2005 IDE propose me to create a method in the A class internal string GetCode(){ }
The VB.NET compiles does not propose anything. There is a way to implement the functions when I need it in code, or I need to planify all my methods before using the class?
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Jun 7, 2012
I am currently learning vb.net for my new job and I have mixed feelings over public fields. I see many arguments about them hurting the encapsulation. In python, the common practice is to keep things simple and use fields when they are enough. If we want to add logic later, we just refactor them into a property without breaking anything for the client code.In the codebase I am working with I see huge classes containing dozen of properties like:
[Code]...
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Jul 24, 2009
I recently started a project and needed to do some integration with LDAP via DirectoryServices. I've done this in other apps so I went into one of them to see how I did it -- why reinvent the wheel right? Well, while this wheel works, it was developed years ago and kinda smells (it's wooden, firmly attached to the previous vehicle, hard to repair and produces a potentially bumpy ride).So I thought to myself, this is the perfect time to refactor this puppy and make it more portable, reusable, reliable, easier to configure etc. Now that's fine and dandy, but then I started feeling a tad overwhelmed regarding to where to start. Should it be a separate library? How should it be configured? Should it use IoC? DI?
So my [admittedly subjective] question is this -- given a relatively small, but quite useful class like the one below, what is a good approach to refactoring it? What questions do you ask and how do you decide what to implement or not implement? Where do you draw the line regarding configuration flexibility? [Note: Please don't bash this code too much okay? It was written a long time ago and has functioned perfectly well baked into an in house application.]
Public Shared Function AuthenticateUser(ByVal id As String, ByVal password As String) As Boolean
Dim path As String = GetUserPath(id)
[code]......
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Dec 20, 2010
I want to add DataMember attributes for the properties in a class Is there any way to automatically add the attribute maybe some refactoring tool
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Feb 21, 2011
This is my scenario. I am writing an app which takes a person object and a features object , when the user selects a person object a features object is created. This works for any amount of features i care to display. So far so good, i am now refactoring to create 2 additional classes, a maths class and a ui class. my issue now is how do i get the maths functions to know the instance of the features object(s) or person object(s)?
Unfactored
Public Sub New(ByVal feature1 As New Feature)
...
[code].....
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Jul 8, 2010
I like to compress the xmldata before the data is provided to the client as an excel file. I am trying to compress and deliver it as a .zip file. its not working Here's my code below. I tried compressing it, converting it to bytes etc etc. The issue with below code is, the XSL transformation is not happening properly and the output excel file is raw xml with some .net exception at the end. (that's what I see on the .xls file that's downloaded at the end) Before I started working on compression my below code was working fine that gives properly formatted excel file from the xml input. the excel file is so nice you can't even tell it was from XML.
[Code]...
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