C# .NET - Export data from Datagridview to Excel sheet

I have created a pay bill windows application in C#.... Now what I have to do to export the COLUMNS from datagridview to EXCEL SHEET

plz help me....

Use this method to export in excel in c#.net window application using Office PIA
private void Export2Excel(DataGridView datagridview, bool captions)
{
object objApp_Late;
object objBook_Late;
object objBooks_Late;
object objSheets_Late;
object objSheet_Late;
object objRange_Late;
object[] Parameters;
string[] headers = new string[datagridview.ColumnCount-1];
string[] columns = new string[datagridview.ColumnCount-1];

int i = 0;
int c = 0;
for (c = 0; c < datagridview.ColumnCount - 1; c++)
{
headers[c] = datagridview.Rows[0].Cells[c].OwningColumn.Name.ToString();
i = c + 65;
columns[c] = Convert.ToString((char)i);
}

try
{
// Get the class type and instantiate Excel.
Type objClassType;
objClassType = Type.GetTypeFromProgID("Excel.Application");
objApp_Late = Activator.CreateInstance(objClassType);
//Get the workbooks collection.
objBooks_Late = objApp_Late.GetType().InvokeMember("Workbooks",
BindingFlags.GetProperty, null, objApp_Late, null);
//Add a new workbook.
objBook_Late = objBooks_Late.GetType().InvokeMember("Add",
BindingFlags.InvokeMethod, null, objBooks_Late, null);
//Get the worksheets collection.
objSheets_Late = objBook_Late.GetType().InvokeMember("Worksheets",
BindingFlags.GetProperty, null, objBook_Late, null);
//Get the first worksheet.
Parameters = new Object[1];
Parameters[0] = 1;
objSheet_Late = objSheets_Late.GetType().InvokeMember("Item",
BindingFlags.GetProperty, null, objSheets_Late, Parameters);

if (captions)
{
// Create the headers in the first row of the sheet
for (c = 0; c < datagridview.ColumnCount - 1; c++)
{
//Get a range object that contains cell.
Parameters = new Object[2];
Parameters[0] = columns[c] + "1";
Parameters[1] = Missing.Value;
objRange_Late = objSheet_Late.GetType().InvokeMember("Range",
BindingFlags.GetProperty, null, objSheet_Late, Parameters);
//Write Headers in cell.
Parameters = new Object[1];
Parameters[0] = headers[c];
objRange_Late.GetType().InvokeMember("Value", BindingFlags.SetProperty,
null, objRange_Late, Parameters);
}
}

// Now add the data from the grid to the sheet starting in row 2
for (i = 0; i < datagridview.RowCount; i++)
{
for (c = 0; c < datagridview.ColumnCount - 1; c++)
{
//Get a range object that contains cell.
Parameters = new Object[2];
Parameters[0] = columns[c] + Convert.ToString(i+2);
Parameters[1] = Missing.Value;
objRange_Late = objSheet_Late.GetType().InvokeMember("Range",
BindingFlags.GetProperty, null, objSheet_Late, Parameters);
//Write Headers in cell.
Parameters = new Object[1];
Parameters[0] = datagridview.Rows[i].Cells[headers[c]].Value.ToString();
objRange_Late.GetType().InvokeMember("Value", BindingFlags.SetProperty,
null, objRange_Late, Parameters);
}
}

//Return control of Excel to the user.
Parameters = new Object[1];
Parameters[0] = true;
objApp_Late.GetType().InvokeMember("Visible", BindingFlags.SetProperty,
null, objApp_Late, Parameters);
objApp_Late.GetType().InvokeMember("UserControl", BindingFlags.SetProperty,
null, objApp_Late, Parameters);
}
catch (Exception theException)
{
String errorMessage;
errorMessage = "Error: ";
errorMessage = String.Concat(errorMessage, theException.Message);
errorMessage = String.Concat(errorMessage, " Line: ");
errorMessage = String.Concat(errorMessage, theException.Source);

MessageBox.Show(errorMessage, "Error");
}
}

hi,

Try below code:


Regards,

THE FOLLOWING ERROR IS GENERATING AFTER THE COMPILATION OF YOUR CODE... PLZ TRY TO SOLVE IT ... PLZ


Error 1 Cannot implicitly convert type 'object' to 'Microsoft.Office.Interop.Excel._Worksheet'. An explicit conversion exists (are you missing a cast?) E:\Project Backup\Suvidha\WindowsFormsApplication1\WindowsFormsApplication1\Create_paybill.cs 128 25 suvidha


Error 2 Cannot implicitly convert type 'object' to 'Microsoft.Office.Interop.Excel._Worksheet'. An explicit conversion exists (are you missing a cast?) E:\Project Backup\Suvidha\WindowsFormsApplication1\WindowsFormsApplication1\Create_paybill.cs 129 25 suvidha


Error 3 No overload for method 'SaveAs' takes '11' arguments E:\Project Backup\Suvidha\WindowsFormsApplication1\WindowsFormsApplication1\Create_paybill.cs 148 13 suvidha

Hi devender ,

Sample Code:

   private void button1_Click_1(object sender, EventArgs e)

      {

 

        // creating Excel Application

        Microsoft.Office.Interop.Excel._Application app  = new Microsoft.Office.Interop.Excel.Application();

 

 

        // creating new WorkBook within Excel application

        Microsoft.Office.Interop.Excel._Workbook workbook =  app.Workbooks.Add(Type.Missing);

       

 

        // creating new Excelsheet in workbook

       Microsoft.Office.Interop.Excel._Worksheet worksheet = null;           

       

       // see the excel sheet behind the program

        app.Visible = true;

      

       // get the reference of first sheet. By default its name is Sheet1.

       // store its reference to worksheet

        worksheet = workbook.Sheets["Sheet1"];

        worksheet = workbook.ActiveSheet;

 

        // changing the name of active sheet

        worksheet.Name = "Exported from gridview";

 

       

        // storing header part in Excel

        for(int i=1;i<dataGridView1.Columns.Count+1;i++)

        {

    worksheet.Cells[1, i] = dataGridView1.Columns[i-1].HeaderText;

        }

 

 

 

        // storing Each row and column value to excel sheet

        for (int i=0; i < dataGridView1.Rows.Count-1 ; i++)

        {

          for(int j=0;j<dataGridView1.Columns.Count;j++)

          {

            worksheet.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString();

          }

        }

 

 

        // save the application

        workbook.SaveAs("c:\\output.xls",Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing,Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive , Type.Missing, Type.Missing, Type.Missing, Type.Missing);

       

        // Exit from the application

      app.Quit();
      }

 

   

Note this part of code gets data from DataGridView and fills cells.

        // storing Each row and column value to excel sheet

        for (int i=0; i < dataGridView1.Rows.Count-1 ; i++)

        {

          for(int j=0;j<dataGridView1.Columns.Count;j++)

          {

            worksheet.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString();

          }

        }

 

I have taken dataGridView1.Rows.Count-1, because in datagridview it contains empty row at the last. (See in the figure of datagridview.)

for more information refer to the below link.


http://dotnetask.com/Resource.aspx?Resourceid=644

But the Following lines of code giving the associated error with the code... plz try to correct it....

statement 1:    worksheet = workbook.Sheets["Sheet1"]; 

Error 1 Cannot implicitly convert type 'object' to 'Microsoft.Office.Interop.Excel._Worksheet'. An explicit conversion exists (are you missing a cast?) E:\Project Backup\Suvidha\WindowsFormsApplication1\WindowsFormsApplication1\Create_paybill.cs 128 25 suvidha



statement 2:   worksheet = workbook.ActiveSheet;

Error 2 Cannot implicitly convert type 'object' to 'Microsoft.Office.Interop.Excel._Worksheet'. An explicit conversion exists (are you missing a cast?) E:\Project Backup\Suvidha\WindowsFormsApplication1\WindowsFormsApplication1\Create_paybill.cs 129 25 suvidha

Hello,

The method I use is as following:


For more details, you can view this post. http://janewdaisy.wordpress.com/2011/12/01/c-import-data-to-excel-through-datagridview/