CODEWITHSUNDEEP
c#sqlexceldatagridview
Ezekiel
Ezekiel

Reputation: 333

Not exporting column name's to excel correctly from dataGridView

I'm trying to export the data from dataGridView to excel. It works well, but I can't export the column name's correctly. The problem is that the column name should be: id and it is idDataGridViewTextBoxColumn . And the other problem is that the first entry from the db is not exported. I mean, instead of my first entry in the db it puts the column names, and then, it puts only the 2nd entry, then the 3rd, so on. Thanks !

private void button3_Click_1(object sender, EventArgs e)
        {
             var connString = (@"Data Source=" + Directory.GetParent(Directory.GetCurrentDirectory()).Parent.FullName + @"\Angajati.sdf");
            using (var conn = new SqlCeConnection(connString))
            {
                try
                {
                    conn.Open();
                    var query = "SELECT * FROM info ";
                    var command = new SqlCeCommand(query, conn);
                    var dataAdapter = new SqlCeDataAdapter(command);
                    var dataTable = new DataTable();
                    dataAdapter.Fill(dataTable);
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.ToString());
                }

            }

            Excel.Application xlApp;
            Excel.Workbook xlWorkBook;
            Excel.Worksheet xlWorkSheet;

            object misValue = System.Reflection.Missing.Value;

            Int16 i, j;

            xlApp = new Excel.Application();
            xlWorkBook = xlApp.Workbooks.Add(misValue);

            xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);

            for (i = 0; i <= dataGridView1.RowCount - 2; i++)
            {
                for (j = 0; j <= dataGridView1.ColumnCount - 1; j++)
                {
                    xlWorkSheet.Cells[i + 1, j + 1] = dataGridView1[j, i].Value.ToString();
                }
            }

            //adds column names to excel
            string[] colNames = new string[dataGridView1.Columns.Count];
            int col = 0;

            foreach (DataGridViewColumn dc in dataGridView1.Columns)
                colNames[col++] = dc.Name;

            char lastColumn = (char)(65 + dataGridView1.Columns.Count - 1);

            xlWorkSheet.get_Range("A1", lastColumn + "1").Value2 = colNames;
            xlWorkSheet.get_Range("A1", lastColumn + "1").Font.Bold = true;
            xlWorkSheet.get_Range("A1", lastColumn + "1").VerticalAlignment
                        = Excel.XlVAlign.xlVAlignCenter;

            xlWorkBook.SaveAs(@"C:\Users\Andrei\Documents\Visual Studio 2010\Projects\Stellwag\Stellwag\db.xls", Excel.XlFileFormat.xlWorkbookNormal, misValue, misValue, misValue, misValue, Excel.XlSaveAsAccessMode.xlExclusive, misValue, misValue, misValue, misValue, misValue);
            xlWorkBook.Close(true, misValue, misValue);
            xlApp.Quit();

            releaseObject(xlWorkSheet);
            releaseObject(xlWorkBook);
            releaseObject(xlApp);
            MessageBox.Show("Salvat cu succes");
        }



        private void releaseObject(object obj)
        {
            try
            {
                System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
                obj = null;
            }
            catch (Exception ex)
            {
                obj = null;
                MessageBox.Show("Exception Occured while releasing object " + ex.ToString());
            }
            finally
            {
                GC.Collect();
            }
        }

Upvotes: 1

Views: 1131

Answers (2)

jsanalytics
jsanalytics

Reputation: 13188

For the column name issue,

replace this:

foreach (DataGridViewColumn dc in dataGridView1.Columns)
    colNames[col++] = dc.Name;

with this:

foreach (DataGridViewColumn dc in dataGridView1.Columns)
    colNames[col++] = dc.HeaderText;

UPDATE: For the first missing row, make this change:

        for (i = 0; i <= dataGridView1.RowCount - 2; i++)
        {
            for (j = 0; j <= dataGridView1.ColumnCount - 1; j++)
            {
                //xlWorkSheet.Cells[i + 1, j + 1] = dataGridView1[j, i].Value.ToString();
                xlWorkSheet.Cells[i + 2, j + 1] = dataGridView1[j, i].Value.ToString();
            }
        }

Upvotes: 1

DrKoch
DrKoch

Reputation: 9782

First, you have to find out, where the problem occurs:

  1. getting the Data from the GridView
  2. sending the data to excel

Use a debuger, set breakpoints and inspect the intermediate values like dataTable and colNames

Upvotes: 0

Related Questions