如何通過在C＃

Question

Excel文件搜索的代碼我使用：

private void OpenExcelFile() 
{ 

    Excel.Application exlApp = new Microsoft.Office.Interop.Excel.Application(); 

    if (exlApp == null) 
    { 
     MessageBox.Show("Excel app object could not be created"); 
    } 
    else 
    { 

     exlFileSelector.FileName = @"*.xls"; 

     if (exlFileSelector.ShowDialog() == DialogResult.OK) 
     { 
      Excel.Workbook wrkBook = exlApp.Workbooks.Open(exlFileSelector.FileName, 0, true, 5, "", "", true, Excel.XlPlatform.xlWindows, "\t", false, false, 0, true, true, true); 
      Excel.Sheets sheetList = wrkBook.Sheets; 

      Excel.Range search = exlApp.get_Range("A1", "C5"); 
      search.Find("FindMe", null, Excel.XlFindLookIn.xlValues, Excel.XlLookAt.xlWhole, Excel.XlSearchOrder.xlByRows, Excel.XlSearchDirection.xlNext, false, null, null); 
     } 
    } 
} 

這是一個答案是「食品法典委員會」回答上一個問題在這個論壇問。但是當我將它複製到我的應用程序時，系統不識別exlFileSelector.FileName。 我該如何解決它？我錯過了什麼？ 我一直在嘗試一段時間在Excel文件中做一個簡單的搜索，但沒有運氣。 （我添加了項目所需的Excel參考）。 謝謝。

Answer 1

，我發現這樣的代碼，我希望它有點幫助..

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using Microsoft.Office.Interop.Excel; 
using System.Windows.Forms; 
using System.Reflection; 


namespace testtesttestExcel 
{ 
public partial class Form1 : Form 
{ 
public Form1() 

{ 
InitializeComponent(); 
} 


//Declare these two variables globally so you can access them from both 
//Button1 and Button2. 
Microsoft.Office.Interop.Excel.Application objApp; 
Microsoft.Office.Interop.Excel._Workbook objBook; 

Microsoft.Office.Interop.Excel.Workbooks objBooks; 
Microsoft.Office.Interop.Excel.Sheets objSheets; 
Microsoft.Office.Interop.Excel._Worksheet objSheet; 
Microsoft.Office.Interop.Excel.Range range; 


private void button1_Click(object sender, System.EventArgs e) 
{ 

try 
{ 
// Instantiate Excel and start a new workbook. 
objApp = new Microsoft.Office.Interop.Excel.Application(); 
objBooks = objApp.Workbooks; 
objBook = objBooks.Add(Missing.Value); 
objSheets = objBook.Worksheets; 
objSheet = (Microsoft.Office.Interop.Excel._Worksheet)objSheets.get_Item(1); 

//Get the range where the starting cell has the address 
//m_sStartingCell and its dimensions are m_iNumRows x m_iNumCols. 
range = objSheet.get_Range("A1", Missing.Value); 
range = range.get_Resize(5, 5); 

//Create an array. 
double[,] saRet = new double[5, 5]; 

//Fill the array. 
for (long iRow = 0; iRow < 5; iRow++) 
{ 
for (long iCol = 0; iCol < 5; iCol++) 
{ 
//Put a counter in the cell. 
saRet[iRow, iCol] = iRow * iCol * iCol; 
} 
} 

//Set the range value to the array. 
range.set_Value(Missing.Value, saRet); 
objApp.Visible = true; 
objApp.UserControl = true; 

} 

catch(Exception theException) 
{ 
String errorMessage; 
errorMessage = "Error: "; 
errorMessage = String.Concat(errorMessage, theException.Message); 
errorMessage = String.Concat(errorMessage, " Line: "); 
errorMessage = String.Concat(errorMessage, theException.Source); 

MessageBox.Show(errorMessage, "Error"); 
} 



Microsoft.Office.Interop.Excel.Range currentFind = null; 
Microsoft.Office.Interop.Excel.Range firstFind = null; 

string A = "16"; 

// You should specify all these parameters every time you call this method, 
// since they can be overridden in the user interface. 
currentFind = objSheet.Cells.Find(A, Type.Missing, 
Microsoft.Office.Interop.Excel.XlFindLookIn.xlValues, Microsoft.Office.Interop.Excel.XlLookAt.xlWhole, 
Microsoft.Office.Interop.Excel.XlSearchOrder.xlByRows, Microsoft.Office.Interop.Excel.XlSearchDirection.xlNext, false, 
Type.Missing, Type.Missing); 

while (currentFind != null) 
{ 
// Keep track of the first range you find. 
if (firstFind == null) 
{ 
firstFind = currentFind; 

//textBox1.Text = currentFind.get_Address(true, true, Microsoft.Office.Interop.Excel.XlReferenceStyle.xlA1, false, Missing.Value); 


} 

// If you didn't move to a new range, you are done. 
else if (currentFind.get_Address(Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlReferenceStyle.xlA1, Type.Missing, Type.Missing) 
== firstFind.get_Address(Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlReferenceStyle.xlA1, Type.Missing, Type.Missing)) 
{ 
break; 
} 

currentFind.Font.Color = System.Drawing.ColorTranslator.ToOl 
(System.Drawing.Color.Red); 
currentFind.Font.Bold = true; 


currentFind = objSheet.Cells.FindNext(currentFind); 
} 

} 
} 

Answer 2

雖然老問題，但我會回答未來的讀者...... exlFileSelector.FileName僅僅是文件路徑的Excel你正在嘗試閱讀的文件。將其替換爲您希望閱讀的Excel文件的完整文件路徑。