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C# - Retrieve Excel Workbook Sheet Names.

, 25 Aug 2004
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This article provides a way to retrieve the worksheet names of an Excel Workbook. This can be used to query a workbook using ADO.NET if you do not know the names of the worksheets.

Introduction

There are many examples using ADO.NET to query an Excel Workbook but they all have a limitation, you must know the worksheet name. This might work if you know the name of the worksheet, but what if you don't? If your program is dynamic and your sheet names differ for each Excel workbook, you need a way to extract the names of the sheets. The code example provides you with a way to retrieve the work sheet names.

The following method returns a string array containing the names of the sheets. The method also shows how to loop through the array. The method has one input parameter excelFile which is the location of the Excel file.

Code Example

/// <span class="code-SummaryComment"><summary>
</span>
/// This mehtod retrieves the excel sheet names from 
/// an excel workbook.
/// <span class="code-SummaryComment"></summary>
</span>
/// <span class="code-SummaryComment"><param name="excelFile">The excel file.</param>
</span>
/// <span class="code-SummaryComment"><returns>String[]</returns>
</span>
private String[] GetExcelSheetNames(string excelFile)
{
  OleDbConnection objConn = null;
  System.Data.DataTable dt = null;

  try
  {
    // Connection String. Change the excel file to the file you
    // will search.
    String connString = "Provider=Microsoft.Jet.OLEDB.4.0;" + 
        "Data Source=" + excelFile + ";Extended Properties=Excel 8.0;";
    // Create connection object by using the preceding connection string.
    objConn = new OleDbConnection(connString);
    // Open connection with the database.
    objConn.Open();
    // Get the data table containg the schema guid.
    dt = objConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
 
    if(dt == null)
    {
      return null;
    }

    String[] excelSheets = new String[dt.Rows.Count];
    int i = 0;

    // Add the sheet name to the string array.
    foreach(DataRow row in dt.Rows)
    {
      excelSheets[i] = row["TABLE_NAME"].ToString();
      i++;
    }

    // Loop through all of the sheets if you want too...
    for(int j=0; j < excelSheets.Length; j++)
    {
      // Query each excel sheet.
    }

    return excelSheets;
  }
  catch(Exception ex)
  {
    return null;
  }
  finally
  {
    // Clean up.
    if(objConn != null)
    {
      objConn.Close();
      objConn.Dispose();
    }
    if(dt != null)
    {
      dt.Dispose();
    }
  }
}

Enjoy...

License

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About the Author

Kenny Young

United States United States
Ken currently works as the Director of Software Engineering at the Pediatrics Epidemiology Center at the University of South Florida. He is involved in the architecture and design on numerous clinical trial projects. Some of the project include:
 
1. Rare Diseases Clinical Research Network
2. TrialNet - Diabetes
3. Teddy - Diabetes
4. CCOP - Cancer
5. AIDA - Diabetes

Comments and Discussions

 
GeneralRe: Good article Pinmemberronny_2957-Jan-09 17:47 
Generalaccess to excel Pinmemberhamedeng7-Sep-07 8:37 
GeneralC# - Inserting Rows in Excel WorkSheet PinmemberXBenedict12-Jul-07 23:04 
GeneralRe: C# - Inserting Rows in Excel WorkSheet Pinmemberprivacy space23-Aug-07 23:35 
Hi,
I have using Spire.XLS, It's may help to you.
check link,
http://www.e-iceblue.com
GeneralPassword Protected PinmemberRedDogEdward5-Dec-06 2:51 
GeneralDoesn't seem to work with Excel 5.0 files. Pinmembertolsen649-Feb-06 13:37 
GeneralAdd Worksheet PinmemberBikash Rai7-Oct-05 21:25 
GeneralGetting retriving excel sheets Pinmembergodfathers2-Mar-05 23:09 
GeneralRe: Getting retriving excel sheets Pinmemberabhi kumar16-Aug-05 21:05 
QuestionA Better Way??? PinsussAnonymous30-Oct-04 13:32 

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