How do you import data into Excel from a dataset?

Source: Internet
Author: User
Tags count stringbuffer
excel| Data///<summary>
Import all the data from the DataSet into Excel.
You need to add the Com:microsoft Excel Object Library.
Using Excel;
</summary>
<param name= "FilePath" ></param>
<param name= "DS" ></param>
public static void exportToExcel (String filePath, DataSet DS)
{
object omissing = System.Reflection.Missing.Value;
Excel.applicationclass xlapp = new Excel.applicationclass ();
Try
{
Open the Excel file. The following is Office 2000.
Excel.Workbook Xlworkbook = XlApp.Workbooks.Open (FilePath, omissing, omissing, omissing, omissing, omissing,
omissing, omissing, omissing, omissing, omissing, omissing,
omissing);
Excel.Worksheet Xlworksheet;
Loop all DataTable
for (int i=0; i<ds. Tables.count; i++)
{
Add to a new sheet page.
Xlworksheet = (excel.worksheet) xlWorkbook.Worksheets.Add (omissing,omissing,1,omissing);
Take TableName as the newly added sheet page name.
Xlworksheet.name = ds. Tables[i]. TableName;
Take out all the values in this DataTable and hold them in the StringBuffer.
String stringbuffer = "";
for (int j=0; j<ds. Tables[i]. Rows.Count; J + +)
{
for (int k=0; k<ds. Tables[i]. Columns.count; k++)
{

StringBuffer + + ds. Tables[i]. ROWS[J][K]. ToString ();
if (K < DS. Tables[i]. COLUMNS.COUNT-1)
StringBuffer + = "T";
}
StringBuffer + = "\ n";
}
Using the System shearing board
System.Windows.Forms.Clipboard.SetDataObject ("");
Place the StringBuffer into the Clipboard.
System.Windows.Forms.Clipboard.SetDataObject (StringBuffer);
Select the first cell in this sheet page
((Excel.Range) xlworksheet.cells[1,1]). Select ();
Paste!
Xlworksheet.paste (omissing,omissing);
Clear the system Clipboard.
System.Windows.Forms.Clipboard.SetDataObject ("");
}
Save and close the workbook.
Xlworkbook.close (Excel.XlSaveAction.xlSaveChanges, omissing, omissing);
System.Runtime.InteropServices.Marshal.ReleaseComObject (Xlworkbook);
Xlworkbook = null;
}
catch (Exception ex)
{
MessageBox.Show (ex. message);
}
Finally
{
Release...
xlApp.Quit ();
System.Runtime.InteropServices.Marshal.ReleaseComObject (xlapp);
xlapp = null;
Gc. Collect ();
}
}




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