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我被困在合併兩個或多個Excel單元格。如果頭文件從合併開始[0,0]成功發生。如果標題沒有從[0,0]開始,則合併失敗。 我正在檢查標準excel列名與導入的Excel表單列名稱。合併兩個或多個Excel文件
public DataTable GetDataTable(string filepath)
{
var prevCulture = Thread.CurrentThread.CurrentCulture;
Thread.CurrentThread.CurrentCulture = CultureInfo.InvariantCulture;
OleDbConnection conn = null;
DataTable dtSourceData = new DataTable();
string excelpath = filepath;
#region connection
if(excelpath!="")
{
try
{
OleDbConnectionStringBuilder sbConnection = new OleDbConnectionStringBuilder();
String strExtendedProperties = String.Empty;
sbConnection.DataSource = excelpath;
sbConnection.Provider = "Microsoft.ACE.OLEDB.12.0";
strExtendedProperties = "Excel 12.0;HDR=Yes;IMEX=1";
sbConnection.Add("Extended Properties", strExtendedProperties);
conn = new OleDbConnection(sbConnection.ToString());
conn.Open();
}
catch
{
try
{
conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.14.0;" +
"Data Source=" + excelpath +
";Extended Properties=Excel 14.0 Xml");
conn.Open();
}
catch
{
try
{
conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.15.0;" +
"Data Source=" + excelpath +
";Extended Properties=Excel 15.0 Xml");
conn.Open();
}
catch
{
try
{
conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;" +
"Data Source=" + excelpath +
";Extended Properties=''");
conn.Open();
}
catch (FileNotFoundException ex)
{
MessageBox.Show(ex.Message);
//throw ex;
}
}
}
}
}
else
{
MessageBox.Show("Standard Template file is not found");
}
#endregion
try
{
List<string> sheetName = new List<string>();
sheetName = ListSheetInExcel(excelpath);
for(int sheet=0;sheet<sheetName.Count;sheet++)
{
string tmpsheetName = sheetName[sheet];
tmpsheetName = tmpsheetName.TrimEnd('$');
tmpsheetName = tmpsheetName.TrimEnd('\'');
tmpsheetName = tmpsheetName.TrimEnd('$');
tmpsheetName = tmpsheetName.TrimStart('\'');
string CreateCommand = "SELECT * FROM [" + tmpsheetName + "$]";
var MyCommand = new System.Data.OleDb.OleDbDataAdapter(CreateCommand, conn);
MyCommand.FillSchema(dtSourceData, SchemaType.Source);
MyCommand.Fill(dtSourceData);
MyCommand.Dispose();
conn.Close();
}
return dtSourceData;
}
catch(Exception er)
{
MessageBox.Show("GetDataTable"+er.Message);
throw er;
}
finally
{
Thread.CurrentThread.CurrentCulture = prevCulture;
}
}
int cnt = 0;
public DataTable MapDataTables(DataTable PrevDataTable, DataTable CurrDataTable, IEnumerable<XElement> ColumnNodes)
{
DataTable result = PrevDataTable;
bool isFirstTime = true;
int i = 0, prevRowCount = result.Rows.Count, totRowCount = result.Rows.Count + CurrDataTable.Rows.Count;
int j = 0;
int preRowCnt = PrevDataTable.Rows.Count;
bool isKeyFound = false;
j = CurrDataTable.Rows.Count;
try
{
foreach (XElement col in ColumnNodes)
{
string newColName = col.Attribute("Name").Value;
foreach (XElement colname in col.Elements())
{
isKeyFound = false;
foreach (DataColumn dc in CurrDataTable.Columns)
{
if (colname.Value == dc.ColumnName.Replace(".", "").Replace(" ", "").Replace("(", "").Replace(")", "").Replace("&", "").Replace("/", ""))
{
int rowCnt = PrevDataTable.Rows.Count;
for (i = 0; i < CurrDataTable.Rows.Count; i++)
{
// if (CurrDataTable.Rows.Count < result.Rows.Count)
// {
if (isFirstTime)
{
DataRow toInsert = result.NewRow();
result.Rows.InsertAt(toInsert, i);
result.Rows[i][newColName] = CurrDataTable.Rows[i][dc.ColumnName];
cnt++;
}
else
{
result.Rows[i][newColName] = CurrDataTable.Rows[i][dc.ColumnName];
j++;
}
}
isFirstTime = false;
}
}
}
if (isKeyFound)
{
break;
}
}
return result;
}
catch (Exception ex)
{
MessageBox.Show("MapDataTables" + ex.Message);
return null;
}
}
private void btnUpdate_Click(object sender, EventArgs e)
{
try
{
string stdTemplateFile = ProjPath + "\\Standard Format.xls";
string inputpath = ""; //= txtPath.Text;
XDocument doc = new XDocument();
doc = XDocument.Load(@"Settings.xml");
var elem = doc.Element("Settings").Element("FieldName").Elements();
if (File.Exists(stdTemplateFile))
{
var MapedTable = (dynamic)null;
if (ChkListBox.CheckedItems.Count > 0)
{
string tempPath = Path.Combine(Path.GetDirectoryName(stdTemplateFile), Path.GetFileNameWithoutExtension(stdTemplateFile) + "_copy.xls");
foreach (string CheckedFile in ChkListBox.CheckedItems)
{
inputpath = CheckedFile;
var PrevDataTable = GetDataTable(tempPath);
var tmpData = PrevDataTable;
var CurDataTable = GetDataTable(inputpath);
MapedTable = MapDataTables(PrevDataTable, CurDataTable, elem);
writeToExcel(CurDataTable, PrevDataTable, tempPath);
}
MessageBox.Show("Completed");
ChkListBox.Items.Clear();
}
}
}
catch(Exception er)
{
MessageBox.Show("Update_Click" + er.Message);
//throw er;
}
}
利用好圖書館。像kim說... – tgkprog