Visual C++ :: How To Use C# With Excel
Jan 2, 2013
Is it possible to create an app that can be saved on my desktop that can be used with an excel file that is saved on my desktop? I have opened VS 2010 and I have created a form design that has a button for every sheet name in my excel file. All of the sheet names are hidden with the exception of one. When a button is pressed on the c# form, I would like for that sheet to be shown in excel. Then once the updates have been made to that sheet in excel, I want a button to be at the top of the excel worksheet that will hide that worksheet again and return to the form c# form...can that be done?
View 2 Replies
ADVERTISEMENT
Mar 1, 2013
private String[] GetExcelSheetNames(string excelFile) {
OleDbConnection objConn = null;
SqlConnection objSqlConn = null;
System.Data.DataTable dt = null;
try {
[code].....
Now I can fatch all the excel sheet belongs to the Excel File.But How can I check "If and Only If the sheets are havin Underscore in their name(eg. student_data,teachers_data) then only the data of the sheets will populate in tha data base"
View 2 Replies
View Related
Mar 21, 2014
I'm trying to minimize an Excel window using c++. but it doesn't work.
Code:
//Save the PID
HWND hWnd = FindWindowA(NULL, (LPCSTR)pXlApp);
GetWindowThreadProcessId(hWnd, &proccesID);
// Make it visible
[Code].....
I checked the HWND is not null, but is not visible....
Code: bool visible=IsWindowVisible(hWnd);
and visible=false, but the window is Visible (I see the Excel file)
View 2 Replies
View Related
Mar 4, 2015
Using Excel Automation in Visual Studio 2010 C++, how do I define a name? As a user of Excel, you can enter a name that then can be used in formulas to refer to a range of cells. The range changes as the user inserts columns or rows. My program has worked with various versions of Excel dating back to the early 2000's.
I have a bunch of classes derived from COleDispatchDriver: CXLApplication, CXLRange, CXLWorkbook, CXLWorkbooks, and CXLWorksheet that have many functions, but I have no documentation... How to define a named range using functions of these classes (probably CXLRange)?
View 6 Replies
View Related
Aug 6, 2013
I am saving my data in Excel File Format.
I am using CDataBase class and its methods like OpenEx ,ExecuteSQL etc. The program is working fine.
Now I need to change back-ground color of some data base records.
How to do this in MFC ?
View 3 Replies
View Related
Nov 4, 2014
I wish to read an excel file which contains the table shown at the picture below.
I don't really know how to code the direct storage of the values in the appropriate array.
For example I wish to store the countries in an array of a string type.
could I have some piece of code which illustrates it (I mean the reading of an excel file and the direct storage of his value in an array).
View 1 Replies
View Related
Jul 31, 2013
I just got a job programming a windows application. One of the requirements is reading and writing values from an excel spreadsheet. Looking online, it appears that C++ isn't the best (one of the worst?) languages for reading and writing values from excel files. Now the language I'm most familiar with is C++ and I've been looking at C#, and it appears to be much easier to read excel files.
View 8 Replies
View Related
Sep 23, 2013
I need to make a programm to write in a excel cell a number.
I must use OLE Automation. How i can do it??
Code:
#include "stdafx.h"
#include <stdio.h>
#include <windows.h>
#include <ole2.h>
#include <assert.h>
#include <iostream>
void main(void) {
CLSID clsid;
CLSIDFromProgID(L"Excel.Application", &clsid);
[Code] ....
View 1 Replies
View Related
Oct 22, 2013
I need VB code to remove any rows in excell that contain ONLY CAPS.
View 4 Replies
View Related
Feb 10, 2014
We have a C++ 5.0 app that does something like this:
Creates the excel dispatch, exports the data, etc...
...
then calls these functions:
xlsApp.SetDisplayAlerts(TRUE);
xlsApp.SetVisible(TRUE);
xlsApp.SetUserControl(TRUE);
This has always worked to display the excel spreadsheet in the foreground, most recently on Windows Server 2003.
Now, testing on Windows Server 2008, the excel spreadsheet is created, but in the background. How to force it to the foreground?
View 2 Replies
View Related
Mar 6, 2012
I have to compare data in excel and csv based on the file name and update the status of file from CSV into excel file by creating a new column status on weekly basis.
View 1 Replies
View Related
Feb 1, 2015
I am using Excel 2013, Visual Studio 2015. I began learning about Excel XLL. I wrote simple function which tests whether the argument is missing. Here's code:
#define DllExport __declspec(dllexport)
static LPWSTR rgFuncs[1][7] = { { L"GetSum", L"BU", L"GetSum" } };
DllExport double WINAPI GetSum(LPXLOPER12 arg)
{
if (arg->xltype == xltypeMissing) return -1;
return arg->xltype;
}
This code works as expected: if I miss argument, it gives me -1, and the type otherwise. But when I change code to this:
DllExport double WINAPI GetSum(LPXLOPER12 arg)
{
return (arg->xltype == xltypeMissing) ? -1 : arg->xltype;
}
then, when I miss argument, it gives me 4294967295. Why?
View 2 Replies
View Related
Dec 21, 2013
I've got a program in C that creates DATA. I need to export the DATA to excel, so I can re export to Access and use in the data base.
I also need to run the Builder in the C++ file every 5 minutes to generate the DATA based on time. How can I do that ?
View 2 Replies
View Related
May 30, 2013
Looking for example code that works for exporting C output to excel sheet.
View 1 Replies
View Related
Jul 1, 2013
i'm kinda new to c#, i wanna create a program which will take few data from GUI and export it into an excel file. Another thing is how to modify the data displacement in that particular excel file?
View 6 Replies
View Related
Apr 9, 2013
how to extract certain cells for an excel file that is continuously updating. I had a look at [URL] since they provide a .h library that is useful for this situation, but could not find any code.
View 7 Replies
View Related
Jul 16, 2013
I want to read/write the excel sheet using C++. how to add the excel library or include the headers ?
Inot possible than is there any other way to work on Excel using C++.
View 4 Replies
View Related
May 3, 2015
I want to export the windows form in which text box,label and gridview ,gridview export to excel is working fine,but i need to export the whole form as such to excel.Is there any option to select Panel : This is my code:
private void btnExport_Click(object sender, EventArgs e)
{
SaveFileDialog sfd = new SaveFileDialog();
sfd.Filter = "Excel Documents (*.xls)|*.xls";
[Code].....
View 2 Replies
View Related
Jul 3, 2014
I'm attempting to write a method that opens a file from Excel, finds a value within the spreadsheet and returns the value from another column along that row.
So I know I want to pass in the filename and the item I'm initially searching for, plus also a column identifier and that way I can locate so something like this:
public static int GetParameter(string filename, string parameter, string channel)
I've attached a snip of the spreadsheet so you can see what I'm lokoing at. I want to open the spreadsheet, find the parameter I've specified, move along the column to find the channel I've specified and finally read and return the value.
The bit that's troubling me is I have no idea how to work with excel in c#. I've done a few searches and I believe I need to add thiese references
using DocumentFormat.OpenXml.Spreadsheet;
using DocumentFormat.OpenXml.Office2010.Excel;
using DocumentFormat.OpenXml.Office.Excel;
using Excel = Microsoft.Office.Interop.Excel;
using Excel;
I have added those usings and also made reference to them in my project. I was also looking at this as well but it just confuses me in how I add my parameters and modify the code to suit:
using System;
using System.Windows.Forms;
using Excel = Microsoft.Office.Interop.Excel;
namespace WindowsApplication1 {
public partial class Form1 : Form {
public Form1() {
InitializeComponent();
[Code] ....
View 5 Replies
View Related
Dec 28, 2013
I am currently having issues with the following code when trying to create a excel file using C#. This is the code that I have at the moment.
oXL = new Microsoft.Office.Interop.Excel.Application();
oXL.Visible = false;
oWK = (Microsoft.Office.Interop.Excel._Workbook)(oXL.Workbooks.Add(System.Reflection.Missing.Value));
oWK.SaveAs(path + "" + fileName);
oWS = (Microsoft.Office.Interop.Excel._Worksheet)oWK.Worksheets.get_Item(1);
oWS.Cells[1, 1] = "Student ID";
oWS.Cells[1, 2] = "Student Name";
oWK.Save();
The line that I am having issues with is
oWS = (Microsoft.Office.Interop.Excel._Worksheet)oWK.Worksheets.get_Item(1);
If I remove it, I am able to create and save teh workbook in the directory. However, I want to make some changes on a worksheet, and that is where the issue is. I have also tried using the line of code:
oWS = (Microsoft.Office.Interop.Excel._Worksheet)oWK.Worksheets[1];
This line had no luck either. The issue I am having is the error regarding InvalidOperationException: Dynamic operations can only be performed in homogenous AppDomain.
View 2 Replies
View Related
Oct 7, 2013
I am trying to open a excel file using ole automation, passin with char * the name.
Code:
void ExcelOpen(char * FileOpenName){
...
{
VARIANT result;
VariantInit(&result);
[Code] ....
View 3 Replies
View Related
Jan 14, 2015
Is not the first time I upload this program i know, but the problem now is that i try to export files, because i need to create an excel graph. But when I try to run it, I don't have any result, no file and no result of the program.
Code:
#include<stdio.h>#include <time.h>
#include <cstdlib>
#include <math.h>
int randfun(double arrX[], double arrY[], int size);
int cenfun(double arrX[], double arrY[], int size);
int rotatefun(double arrX[], double arrY[], int size, double center_x, double center_y, const double angle);
[Code] .....
View 2 Replies
View Related
Mar 12, 2014
I have to develop an application that uses Qt, Excel and live-time file checking. My client gave me this:
I have a problem at work. I need you to develop this: I want one application with GUI (it said windows), that generates an report for each sheet (employee name) in the file, with the columns. I don't want to make the computer slower, so check the file and get the name of the employee that is altered and only change his report
How to start it. All Excel libraries I use stop working on my computer and this "File Checking" is other trouble, because if for each second I compare the size of the "old" file with "new" file, the memory will explode.
View 5 Replies
View Related
May 10, 2014
convert this file to an excel or ms access file?
View 10 Replies
View Related
Jan 15, 2015
I am displaying data from an Excel Spreadsheet through an ASP.net web form using C#. I would like to run an SQL query on the data, but am having trouble figuring out how to use a string in my query.
Here is the code I am running in my .aspx.cs file. I am also using a .aspx to display the data in a GridView.
public partial class ExcelAdapter : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) {
String sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Server.MapPath("ExcelCSTest.xls") + ";" + "Extended Properties="Excel 8.0;HDR=Yes;IMEX=1"";
[Code] ....
Ideally, I would like to add a WHERE clause to my string (string sSQL = "SELECT * FROM [Sheet1$A1:D14]"/> in order to query the current month and display the row of said month from the Excel Spreadsheet.
I have attempted to use a DataAdapter to insert the string into the query, but could not figure out how to conform my code to work with it.
View 1 Replies
View Related
Apr 9, 2014
I am able to export a tabulated string to an Excel file, when I open the file in Excel it looks fine (3 rows, 3 columns). However, the formatting seems a bit dodgy as I can't then read the same file back using C#. If I open it in Excel and do a save as, then I can read it from C#.
fileWriter = new System.IO.StreamWriter(@"C:Sheet1.xls"); //
This overwrites file each time by default.
fileWriter.Write("COL_A COL_B COL_C
1 2 3
10 20 30");
fileWriter.Close();
To read the Excel file back i'm using the following code:
OleDbConnection cnn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + (@"C:Sheet1.xls") + "; Extended Properties=Excel 12.0;");
OleDbCommand oconn = new OleDbCommand("select * from [Sheet1$]", cnn);
cnn.Open();
OleDbDataAdapter adp = new OleDbDataAdapter(oconn);
DataTable forceResultsTable = new DataTable();
adp.Fill(resultsDataTable);
The error I'm getting back is "OleDbException was unhandled" with "cnn.Open();" being highlighted in visual.
View 9 Replies
View Related
