C Sharp :: Open Excel File / Refresh Query And Save
Oct 3, 2012
I am trying to open an Excel file, refresh the query behind it and then save and close the file in C#.
I have the following but I am getting errors on the
Application excel = new Application()
section:
Application excel = new Application();
Workbook theWorkbook = excelFile.Workbooks._Open(txtLocation.Text, 0, false, 5, System.
Reflection.Missing.Value, System.Reflection.Missing.Value, false, System.
[Code] .....
I have added the Microsoft.Office.Interop.Excel reference, but still have the issue?
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Apr 5, 2013
I need to save excel file data directely into oracle database by using XML string but getting error as
ORA-01704: string literal too long
01704. 00000 - "string literal too long"
*Cause: The string literal is longer than 4000 characters.
*Action: Use a string literal of at most 4000 characters.
Longer values may only be entered using bind variables.
Error at Line: 50 Column: 31
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Feb 27, 2013
how i upload excel file with value Save in database on server without show error.
Actually i have code who work correct on local host but not work on server then show error who write down Below
Microsoft.ACE.OLEDB.12.0 is not registered local machine.
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Apr 17, 2013
i have created application using gembox i create a word file and save data on it but i want after saving it itis opened to me using microsoft word directly
it is the code
DocumentModel document1 = new DocumentModel();
Section section1 = new Section(document1);
document1.Sections.Add(section1);
[Code]....
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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] ....
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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] .....
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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.
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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"
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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.
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Jan 9, 2013
//user list view
da = new SqlDataAdapter("SELECT * FROM [user]", con);
DataTable t = new DataTable();
ds = new DataSet();
da.Fill(ds);
t = ds.Tables[0];
listView1.View = View.Details;
[Code] ....
I tried with datagridview.refresh, update but its not working can any body sugesst me what to do for refresing the data ....do timer we have to use..? if yes then how ...?
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Jan 28, 2015
1st when i fill the things on form then saved in database after saving record when i want add another record it shows an error. after saving it saves new record refresh doesn't work
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Aug 27, 2014
I am trying to query an Informix database using a List<T> collection's elements as variables. I can build the list and connect to the database, but I am unsure how to iterate through the list and query the database for each item in the collection.
My list is of type string, and contains Order Numbers. I want to query item information for each order number in the list.
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Feb 21, 2014
private void update_Click(object sender, EventArgs e) {
OleDbConnection conn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:UsersshobhitDocumentsEnvironment_Monitoring.accdb;
Jet OLEDB:Database Password=divya6");
String sdat = dateTimePicker1.Value.ToShortDateString();
String la = labs.SelectedItem.ToString();
[Code] ....
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May 6, 2013
I have a requirement where I have to import a lot of text files into excel. Up till now I can import the text files using visual studio C# but after importing the format is not exactly the way I want (mostly the delimiters). So I have to manually use the text import wizard and make the changes. I was just wondering if there is any way to program all of it. Delimiting the spaces, specifying the column widths, eliminating a few rows and columns.
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Jun 24, 2013
I have the following code which allows me to add the pdf files if I give the exact name and path of the file. But I have multiple pdf files in a folder which I want to add to each cell in the first column. I am having trouble thinking of the logic to have a for loop for a folder which contains the pdf files.
private void button1_Click(object sender, EventArgs e) {
Excel.Application xlApp;
Excel.Workbook xlWorkBook;
Excel.Worksheet xlWorkSheet;
xlApp = new Excel.ApplicationClass();
xlWorkBook = xlApp.Workbooks.Add(true);
[Code] ...
But this is very very rough draft. I have say 20 files in the folder pdf with different names(Title). How can I add all the 20 pdf files in the excel sheet?
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Jan 15, 2013
Opening large files in c++. In my application, i am trying to save video as long as users have space in harddisk. What I am trying to do is when user is recording video i am trying to append the video data in to the file. The problem is that every time file size reach over 2GB my software crashes.
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Nov 5, 2013
I am trying to develop a GUI using MFC, but I am having trouble using CFiledialog to save a file. The problem is, the file is not getting saved to the folder when I use the CFiledialog. Below is the code I am using.
Code:
CString szFilter = "XNRep Files (*.xnrep)|*.xnrep||";
CString s = "xnrep";
CString t = "";
CFileDialog fileDlg(FALSE, s, t, NULL, szFilter);
if(fileDlg.DoModal() == IDOK)
{
std::ofstream file;
[Code]....
After the file dialog opens up, I enter the name of the file and select OK button. But the file does not show up in the directory I am saving to.
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Dec 24, 2012
I have a text box invoice no on windows form and i need to retrieve data from database and everytime user click on the add button the invoice no should increment by 1...
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Jan 21, 2014
I have application that codes and binds an access database to a windows form application. Everything seems to work however, nothing is actually saved in the database. Updates and deletes are coded and debugging steps through, but checking the db, the data is the same.
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Nov 21, 2012
how to save the filepath in textbox by using OpenFileDialog
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Jun 25, 2012
Is it possible to save web page as image with web application? if yes then how?.I searched and searched and searched but all examples i found were for windows application and i'm facing lot of trouble while converting it for web application.
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Feb 19, 2013
I'm getting this error.
SQLite error
near "16": syntax error
On the code:
private void btnUpdate_Click(object sender, EventArgs e)
{
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
[Code]....
With breapoints etc it does show the values it has to insert into my database. But it just doesn't and gives me the Near "16" syntax error.
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Sep 26, 2012
I'm working in a web aplication in c#, vs 2008, framework 3.5, I need to assign a value to a var, in this case "problemas", when I tried to save the value that I have in the checkboxlist, it does, but if don't selected, can't show 0, besides if I change the value "problemas = 9" to problemas = 111111" doesn't works.
protected void ckblProblemas_SelectedIndexChanged(object sender, EventArgs e){
int problemas = 0; {
if (ckblProblemas.SelectedValue.Equals("9")) {
problemas = 9;
} else {
problemas.Equals("0");
}
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Sep 28, 2012
I wrote this code behind a button
"
colordialog.showdialog();
File.WriteAllText("dlg.txt",this.BackColor.Name);
"
And I wrote this code in Form Load as well
"
this.BackColor = Color.FromName(File.ReadAllText("dlg.txt"));
"
but I got an error and I dont know what is this.... "Control does not support transparent background colors"
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Oct 23, 2012
I want to open one new CMD from console application, write text into the new CMD and then coming back to the control on the old cmd. (like interactively working on the both)
look into the below code
Process P1 = Process.Start(@"C:WINDOWSsystem32cmd.exe");
P1.StartInfo.RedirectStandardInput = true;
P1.StartInfo.RedirectStandardOutput = true;
P1.StartInfo.UseShellExecute = false;
StreamWriter wr = P1.StandardInput;
wr.WriteLine("First line in New Cmd");
Console.WriteLine("First line in Old Cmd");
wr.WriteLine("Second line in New Cmd");
Console.WriteLine("Second line in Old Cmd");
it is giving the exception "StandardIn has not been redirected"
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Aug 21, 2012
How to open a image in paint mode after that how to apply graphics to that opened image in paint mode.I am attached a image i want to draw a center line in that image..
Attached Images point1.jpg (12.9 KB)
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