import excel to .net C#

Posted on 2013-01-26
Medium Priority
Last Modified: 2013-02-06
I would like to import an excel document. The excel document contains 3 columns (Id, Name, Description).  I would like to show the data in a GridView.  I am using C#. Can you show an example how this is done?
Question by:johnkainn
LVL 55

Expert Comment

by:Jaime Olivares
ID: 38822151
Hi John,
What kind of gridview? winforms, wpf, asp?

If ASP (I am just guessing), you can read: http://www.geekcamp.us/articles/import_data_from_excel_into_gridview_using_aspnet.aspx

Expert Comment

ID: 38822706
Sorry I am not at my development PC now but this should get you started.


Just ensure that you're using the correct connectionstring.
"provider=Microsoft.ACE.OLEDB.12.0;data source=" + filepath + ";extended properties='Excel 12.0;HDR=YES;'";

Assisted Solution

azizoglua earned 664 total points
ID: 38823980
try this for winforms, for web just open last comment (dataGridView1.DataBindind();)

string connstr = @"Provider=Microsoft.Jet.Oledb.4.0;Data Source=D:\excel.xlsx;Extended Properties=Excel 8.0";
OleDbConnection conn = new OleDbConnection(connstr);
string strSQL = "SELECT Id, Name, Description FROM [Sheet1$]";
OleDbCommand cmd = new OleDbCommand(strSQL, conn);
DataSet ds = new DataSet();
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
dataGridView1.DataSource = ds.Tables[0];
// dataGridView1.DataBindind();
LVL 10

Assisted Solution

by:Monica P
Monica P earned 668 total points
ID: 38825897
Have excel sheet with following headings UserName,Education,Location with data as below

aaaa              MBA           chennai
bbbb             MCA            bangalore

Asp code

<asp:FileUpload ID="fileuploadExcel" runat="server" />&nbsp;&nbsp;
<asp:Button ID="btnImport" runat="server" Text="Import Data" OnClick="btnImport_Click" />
<br />
<asp:Label ID="lblMessage" runat="server" Visible="False" Font-Bold="True" ForeColor="#009933"></asp:Label><br />
<asp:GridView ID="grvExcelData" runat="server">
<HeaderStyle BackColor="#df5015" Font-Bold="true" ForeColor="White" />

Open in new window

protected void btnImport_Click(object sender, EventArgs e)
string connString = "";
string strFileType = Path.GetExtension(fileuploadExcel.FileName).ToLower();
string path = fileuploadExcel.PostedFile.FileName;
//Connection String to Excel Workbook
if (strFileType.Trim() == ".xls")
connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path + ";Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=2\"";
else if (strFileType.Trim() == ".xlsx")
connString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=\"Excel 12.0;HDR=Yes;IMEX=2\"";
string query = "SELECT [UserName],[Education],[Location] FROM [Sheet1$]";
OleDbConnection conn = new OleDbConnection(connString);
if (conn.State == ConnectionState.Closed)
OleDbCommand cmd = new OleDbCommand(query, conn);
OleDbDataAdapter da = new OleDbDataAdapter(cmd);
DataSet ds = new DataSet();
grvExcelData.DataSource = ds.Tables[0];

Open in new window

LVL 13

Accepted Solution

jonnidip earned 668 total points
ID: 38834412
I would STRONGLY suggest you to take a look at: ExcelDataReader.
It can be used as any IDataReader and also lets you read any xls/xlsx format into DataTable.

I am sure you will not be disappointed!


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