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06/22/2009 at 10:29PM PDT, ID: 24513578
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7.8

Handling Dot (.) character in Excel 2007 Column Headers.

Asked by techprocess in Programming for ASP.NET, Windows OLE Programming, Microsoft Excel Spreadsheet Software

Tags: Excel 2007, ASP.NET, OLEDB

We are working on a requirement where we are querying Excel 2007 file in ASP.NET using OLEDB connection. We are able to perform all the desired operations while querying, but facing problem when Excel sheet column name contain Dot (.) character. We are facing below mentioned message/exception,

Invalid bracketing of name '[Account No.88]'.

We have tried to escape Dot (.) with "\" or "'" (single quote) but continue to face the problem. Is there any way to handle this situation. We want to process the Excel  column name as it is, with Dot (.) character) using OLEDB. 
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protected void Page_Load(object sender, EventArgs e)
{
 
	DataTable dtExcelData = new DataTable();
	OleDbDataAdapter daExcelData = new OleDbDataAdapter();
 
	//OleDbConnection conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\\MakeMyTrip\\1AiiiiVivek.xlsx;Extended Properties = " + Convert.ToChar(34).ToString() + "Excel 12.0;HDR=Yes;IMEX=1" + Convert.ToChar(34).ToString());
 
	OleDbConnection conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\\MakeMyTrip\\Book1.xlsx;Extended Properties = " + Convert.ToChar(34).ToString() + "Excel 12.0;HDR=No;IMEX=1" + Convert.ToChar(34).ToString());
 
	conn.Open();
	OleDbCommand ExcelCommand = new OleDbCommand();
	ExcelCommand.Connection = conn;
	DataTable tblExcelSheet = conn.GetOleDbSchemaTable(System.Data.OleDb.OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
	string SpreadSheetName = "[" + tblExcelSheet.Rows[0]["TABLE_NAME"].ToString() + "]";
	conn.Close();
	//DataTable dtPurExcelColsSheet = new DataTable();
	string sQuery, filterString,DerivedfilterString;
 
	//filterString = "and [SrNo] > 2";
	filterString = " ";
	//DerivedfilterString = " and [Amount] > 9"; //'AA-' + 
	DerivedfilterString = "";
	//sQuery = "Select 'AA-' + str([SrNo]) from " + SpreadSheetName + " where 1=1 ";
	//sQuery = "Select [B/Fare + Taxes] + [SerTax on Base Fare @ 60%] + [SerTax on Base Fare @2%] as Total,'AA' + Format([External Document No]) + 'BB' as DocumentNo,Mid(Format([SerTax on Base Fare @ 60%]),1,2)  from " + SpreadSheetName + " where 1=1 ";
	//sQuery = "Select [Advance133] + [Balance144] as Total,'AA' + Format([Account No88]) + 'BB' as AccountNo,Mid(Format([Credit Card No99]),1,2)  from " + SpreadSheetName + " where 1=1 ";
 
	sQuery = "select [Account No.88] from " + SpreadSheetName + " where 1=1 ";
 
	if (filterString != "")
	{
	    sQuery = sQuery + filterString;
 
	}
 
	if (DerivedfilterString != "")
	{
	    sQuery = sQuery + DerivedfilterString;
	}
 
	//sQuery = "Select * from [Sheet1$] where 1=1  and [SrNo] > 2 and [Amount] > 9";
	daExcelData = new OleDbDataAdapter(sQuery, conn);
 
	//daExcelData = new OleDbDataAdapter("Select * from " + SpreadSheetName, conn);
	daExcelData.TableMappings.Add("Table", "ExcelData");
	daExcelData.Fill(dtExcelData);
 
}
[+][-]06/23/09 02:09 AM, ID: 24690137

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[+][-]06/23/09 04:07 AM, ID: 24690653

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[+][-]06/23/09 04:10 AM, ID: 24690669

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[+][-]06/23/09 04:37 AM, ID: 24690792

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About this solution

Zones: Programming for ASP.NET, Windows OLE Programming, Microsoft Excel Spreadsheet Software
Tags: Excel 2007, ASP.NET, OLEDB
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Solution Provided By: techprocess
Participating Experts: 1
Solution Grade: A
 
 
[+][-]07/15/09 12:14 AM, ID: 24856931

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