我正在使用此代码导入excel（.xls）数据，但列中的所有方括号都被圆形替换。例如列dm [kg]：
导入前：dm [kg]
导入后：dm（kg）
我会感激任何帮助。
public static DataTable ImportWorkSheet(string excelFile, bool hasHeaderRow, bool allText, string tabName)
{
string connectionString = GetExcelConnectionString(excelFile, hasHeaderRow, allText);
using (OleDbConnection connection = new OleDbConnection(connectionString))
{
connection.Open();
if (Path.GetExtension(excelFile).Equals(".csv", StringComparison.OrdinalIgnoreCase))
tabName = Path.GetFileName(excelFile);
else
tabName = EnsureTableName(connection, tabName);
string selectString = string.Format("SELECT * FROM [{0}]", tabName);
DataTable table = new DataTable(tabName);
using (OleDbDataAdapter adapter = new OleDbDataAdapter(selectString, connection))
{
adapter.Fill(table);
}
return table;
}
}
private static string EnsureTableName(DbConnection connection, string tabName)
{
if (string.IsNullOrEmpty(tabName))
{
//use GetSchema to find the first sheet == table name
DataTable worksheets = connection.GetSchema("Tables");
foreach (DataRow row in worksheets.Rows)
{
//this can also return Excel named ranges
tabName = (string)row["TABLE_NAME"];
//so look for sheets (excel puts $ after the name and may single-quote the name)
if (tabName.EndsWith("$") || tabName.EndsWith("$'"))
return tabName;
//otherwise we'll fall through with whatever we find
}
}
//they supplied a worksheet name; ensure always has $ suffix
else if (!tabName.EndsWith("$"))
tabName += "$";
return tabName;
}
private static string GetExcelConnectionString(string filePath, bool hasHeaderRow, bool allText)
{
//http://www.connectionstrings.com/?carrier=excel
string connectionString;
string ext = Path.GetExtension(filePath);
if (ext.Equals(".csv", StringComparison.OrdinalIgnoreCase))
{
//uses directory path, not file path
//for format definition, write a schema.ini in the folder: http://msdn.microsoft.com/en-us/library/ms709353.aspx
connectionString = string.Format(
@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0}; Extended Properties=""text;FMT=Delimited;{1}{2}""",
filePath.Remove(filePath.IndexOf(Path.GetFileName(filePath))),
hasHeaderRow ? "HDR=YES;" : "HDR=NO;",
allText ? "IMEX=1" : string.Empty);
}
else if (ext.Equals(".xlsx", StringComparison.OrdinalIgnoreCase))
{
//if this fails, install 2007 providers from http://www.microsoft.com/downloads/details.aspx?FamilyID=7554F536-8C28-4598-9B72-EF94E038C891&displaylang=en
connectionString = string.Format(
@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source={0}; Extended Properties=""Excel 12.0 Xml;{1}{2}""",
filePath,
hasHeaderRow ? "HDR=YES;" : "HDR=NO;",
allText ? "IMEX=1" : string.Empty);
}
else //assume normal excel
{
connectionString = string.Format(
@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0}; Extended Properties=""Excel 8.0;{1}{2}""",
filePath,
hasHeaderRow ? "HDR=YES;" : "HDR=NO;",
allText ? "IMEX=1" : string.Empty);
}
return connectionString;
}