將DataTable列表與字符串列表進行比較

所以我試圖從Excel導入創建數據表然後用於其他事情。我知道電子表格表的名稱，所以我已經在我的文檔的頂部創建了數據表：將DataTable列表與字符串列表進行比較

private DataTable Version,Pi_PROCESSPi_PMLIFEPROFILE,PIAPPLICATION,PIRUGGEDISING,ELECTRONICCOMPONENT,HFANDRFCOMPONENTS,HYBRIDANDMULTICHIPMODULE,COTSBOARDS, VARIOUSSUBASSEMBLIES,PARTCOUNT, FAMILYCOUNT;

然後我有循環列表和一個電子表格時讀到，等試算表名稱分配給該列表

List<string>ExcelSheets = new List<string>();

Excel電子表格清單和數據表聲明具有相同的名稱

我有一個功能，讀取基於給定工作表名稱，所以我希望能夠像做（僞Excel電子表格代碼）：

foreach ExcelSheets{ 
Datatable = dt.ReadFunction() 
}

使用DataTable作爲文件頂部的聲明數據表。

所以我想說列表中的每個表，運行功能和結果分配給相應的數據表

編輯：代碼以供參考：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Windows.Forms; 
using System.IO; 
using System.Web; 
using System.Xml; 
using DocumentFormat.OpenXml; 
using DocumentFormat.OpenXml.Packaging; 
using DocumentFormat.OpenXml.Spreadsheet; 
using System.Data.OleDb; 
using System.Reflection; 
using System.Text.RegularExpressions; 
using S = DocumentFormat.OpenXml.Spreadsheet.Sheets; 
using E = DocumentFormat.OpenXml.OpenXmlElement; 
using A = DocumentFormat.OpenXml.OpenXmlAttribute; 

namespace FidesToRWB 
{ 
public partial class Form1 : Form 
{ 

    public Form1() 
    { 
     InitializeComponent(); 


    } 




    #region Strings 
    string FileType; 
    string FileDesc1; 
    string FileDesc2; 
    string FileQty; 
    string FileID; 
    string T_max; 
    string NLayer; 
    string NConnection; 
    string NContact; 
    string NAnnualCycles; 
    string NumberOfPins; 
    string NumberofSMD; 
    string RiseofTemp; 
    string PApplied; 
    string VApplied; 
    string VContact; 
    string IContact; 
    string UNormal; 
    string LimitandManual; 
    string NoofManov; 
    string Louput; 
    string NDT; 
    string NST; 
    string IApplied; 
    string Qman; 
    string Qcomponent; 
    string RAMan; 
    string Experiance; 
    private string newLine; 
    #endregion 

    private DataTable Version,Pi_PROCESSPi_PMLIFEPROFILE,PIAPPLICATION,PIRUGGEDISING,ELECTRONICCOMPONENT,HFANDRFCOMPONENTS,HYBRIDANDMULTICHIPMODULE,COTSBOARDS, VARIOUSSUBASSEMBLIES,PARTCOUNT, FAMILYCOUNT; 

    List<string>ExcelSheets = new List<string>(); 


    List<string> phases = new List<string>(); 



    GetDataFromExcel dt = new GetDataFromExcel(); 
    int ColIndex = 0; 
    int start = 0; 


    private void btnBrowse_Click(object sender, EventArgs e) 
    { 

     OpenFileBox(); 
    } 





    /// <summary> 
    /// Reads the file based on the selected grid view. 
    /// </summary> 
    /// <param name="sender"></param> 
    /// <param name="e"></param> 
    private void btnRead_Click(object sender, EventArgs e) 
    { 
     //Need to check if the combo box is empty first - otherwise we will get an error... 
     if (cmbSheetSelect.SelectedIndex <= -1) 
     { 
      MessageBox.Show("Please select a sheet to display", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); 
     } 
     else 
     { 
      string Sheet = cmbSheetSelect.SelectedItem.ToString(); 
      string TrimmedSheet = Sheet.TrimEnd(); 

      //Enter the start row number in Excel of the data 

      if (TrimmedSheet == "Pi_PROCESS&Pi_PM&LIFE PROFILE") 
       { 
        start = 18; 
        ColIndex = 16; 
       } 

      if (TrimmedSheet == "PI APPLICATION") 
       { 
        start = 9; 
        ColIndex = 4; 
       } 
      if (TrimmedSheet == "PI RUGGEDISING") 
      { 
       start = 9; 
      } 
      if (TrimmedSheet == "ELECTRONIC COMPONENT" || TrimmedSheet == "HF AND RF COMPONENTS" || TrimmedSheet == "HYBRID AND MULTICHIP MODULE" || TrimmedSheet == "COTS BOARDS") 
      { 
       start = 70; 
       ColIndex = 5; 



      } 
      if (TrimmedSheet == "VARIOUS SUBASSEMBLIES") 
      { 

       start = 70; 
      } 



      foreach (var sheetName in ExcelSheets) 
      { 
       var prop = Form1.GetType().GetField(sheetName, BindingFlags.NonPublic | BindingFlags.Instance); 
       prop.SetValue(this, dt.ExtractExcelSheetValuesToDataTable(txtFileLocation.Text, Sheet, start, ColIndex)); 
      } 



      //DataTable t = dt.ExtractExcelSheetValuesToDataTable(txtFileLocation.Text, Sheet, start, ColIndex); 
      //dataGridView1.DataSource = t; 





     } 
    } 




    /// <summary> 
     /// Gets the sheet information 
    /// </summary> 
    /// <param name="GetSheetInfo"></param> 

    public void GetSheetInfo(string fileName) 
    { 
     Sheets theSheets = null; 
     // Open file as read-only. 
     using (SpreadsheetDocument mySpreadsheet = SpreadsheetDocument.Open(fileName, false)) 
     { 
      S sheets = mySpreadsheet.WorkbookPart.Workbook.Sheets; 

      WorkbookPart wbPart; 
      wbPart = mySpreadsheet.WorkbookPart; 
      theSheets = wbPart.Workbook.Sheets; 

      foreach (Sheet item in theSheets) 
      { 
       cmbSheetSelect.Items.Add(item.Name); 
       ExcelSheets.Add(item.Name); 



      } 



     } 
    } 

    private void txtFileLocation_Click(object sender, EventArgs e) 
    { 
     OpenFileBox(); 
    } 

    public void OpenFileBox() 
    { 
     Stream myStream = null; 
     OpenFileDialog openFileDialog1 = new OpenFileDialog(); 

     openFileDialog1.InitialDirectory = "C:\\"; 
     openFileDialog1.Filter = "Excel 2007+ (*.xlsx)|*.xlsx"; 
     openFileDialog1.FilterIndex = 2; 
     openFileDialog1.RestoreDirectory = true; 
     if (openFileDialog1.ShowDialog() == DialogResult.OK) 
     { 
      try 
      { 
       if ((myStream = openFileDialog1.OpenFile()) != null) 
       { 
        using (myStream) 
        { 
         // Insert code to read the stream here. 
         txtFileLocation.Text = openFileDialog1.FileName; 
         cmbSheetSelect.Enabled = true; 
         btnRead.Enabled = true; 
         GetSheetInfo(txtFileLocation.Text); 
         lblPIP.Text = dt.GetCellValue(txtFileLocation.Text, "Pi_PROCESS&Pi_PM&LIFE PROFILE", "D3"); 
         lblPILF.Text = dt.GetCellValue(txtFileLocation.Text, "Pi_PROCESS&Pi_PM&LIFE PROFILE", "D4"); 
         lblPIRFHF.Text = dt.GetCellValue(txtFileLocation.Text, "Pi_PROCESS&Pi_PM&LIFE PROFILE", "D5"); 


         int x = 20; int y = 20; 

         for (int i = 18; i < 37; i++) 

         { 

          if (dt.GetCellValue(txtFileLocation.Text, "Pi_PROCESS&Pi_PM&LIFE PROFILE", "A"+i.ToString()).ToString() != "") 
          { 
           phases.Add(dt.GetCellValue(txtFileLocation.Text, "Pi_PROCESS&Pi_PM&LIFE PROFILE", "A"+i.ToString()).ToString()); 

          } 



          y += 30; 

         } 

        } 
       } 
      } 
      catch (Exception ex) 
      { 
       MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message); 
      } 
     } 
    } 

    private void label6_Click(object sender, EventArgs e) 
    { 

    } 

    public void GenerateCSV(string fileLoc, string type) 
    { 
     //Strings for things. 
     string csvFilePath = "C:\\RWBExport.csv"; 
     var csv = new StringBuilder(); 

     if (type == "ELECTRONIC COMPONENT") 
     { 

     newLine = string.Format("{0},{1},{2},{3} {4}", "ID", "Category", "ParamValuesKey", "PartNumber", Environment.NewLine); 
     csv.Append(newLine); 

      foreach (DataGridViewRow row in dataGridView1.Rows) 
      { 

       //Type 
       string Type = row.Cells[1].Value.ToString(); 
       Type = Type.Substring(Type.IndexOf('[') + 1); 
       Type = Type.Remove(Type.Length - 1); 


       switch (Type) 
       { 
        case "ECDS": 
         FileType = "FID-DS"; 
         break; 

        default: 
         MessageBox.Show("Error, no matchin param value"); 

         break; 
       } 

       //Appendix 1 

       string app1 = row.Cells[2].Value.ToString(); 
       app1 = app1.Substring(app1.IndexOf('[') + 1); 
       app1 = app1.Remove(app1.Length - 1); 

       switch (app1) 
       { 
         #region Switch Case for Semiconductor Case 

        case "ECDS_01": 
         FileDesc2 = "THSSP"; 
         break; 
        case "ECDS_02": 
         FileDesc2 = "SSSLP"; 
         break; 
        case "ECDS_03": 
         FileDesc2 = "SMSLP"; 
         break; 
        case "ECDS_04": 
         FileDesc2 = "THPP"; 
         break; 
        case "ECDS_05": 
         FileDesc2 = "SSSCP"; 
         break; 
        case "ECDS_06": 
         FileDesc2 = "SPLLP"; 
         break; 
        case "ECDS_07": 
         FileDesc2 = "SHPSP"; 
         break; 
        case "ECDS_08": 
         FileDesc2 = "SHSG"; 
         break; 
        case "ECDS_09": 
         FileDesc2 = "THM"; 
         break; 
        case "ECDS_37": 
         FileDesc2 = "TSSOP"; 
         break; 
        case "ECDS_32": 
         FileDesc2 = "TSOP"; 
         break; 
        case "ECDS_28": 
         FileDesc2 = "SO"; 
         break; 
        default: 
         FileDesc2 = "BCHIP"; 
         break; 

         #endregion 

       } 




       //Appendix2 
       string app2 = row.Cells[3].Value.ToString(); 
       app2 = app2.Substring(app2.IndexOf('[') + 1); 
       app2 = app2.Remove(app2.Length - 1); 


       switch (app2) 
       { 
         #region Switch Case for Semiconductor Type 

        case "ECDS_10": 
         FileDesc1 = "LDSD"; 
         break; 
        case "ECDS_11": 
         FileDesc1 = "LDRD"; 
         break; 
        case "ECDS_12": 
         FileDesc1 = "LDZR"; 
         break; 
        case "ECDS_13": 
         FileDesc1 = "LDPD"; 
         break; 
        case "ECDS_14": 
         FileDesc1 = "PDTH"; 
         break; 
        case "ECDS_15": 
         FileDesc1 = "PDRD"; 
         break; 
        case "ECDS_16": 
         FileDesc1 = "PDZR"; 
         break; 
        case "ECDS_17": 
         FileDesc1 = "PDPD"; 
         break; 
        case "ECDS_18": 
         FileDesc1 = "LTSJ"; 
         break; 
        case "ECDS_19": 
         FileDesc1 = "LTSM"; 
         break; 
        case "ECDS_20": 
         FileDesc1 = "LTSB"; 
         break; 
        case "ECDS_21": 
         FileDesc1 = "PTSB"; 
         break; 
        case "ECDS_22": 
         FileDesc1 = "PTSM"; 
         break; 
        case "ECDS_23": 
         FileDesc1 = "PTIG"; 
         break; 

         #endregion 

       } 

       //Qty 
       FileQty = row.Cells[5].Value.ToString(); 

       //ID 
       FileID = row.Cells[0].Value.ToString(); 

       #region Of things you never want to repeat...add this to that list. Pulls all the variables. 

       T_max = row.Cells[12].Value.ToString(); 
       NLayer = row.Cells[13].Value.ToString(); 
       NConnection = row.Cells[14].Value.ToString(); 
       NContact = row.Cells[15].Value.ToString(); 
       NAnnualCycles = row.Cells[16].Value.ToString(); 
       NumberOfPins = row.Cells[17].Value.ToString(); 
       NumberofSMD = row.Cells[18].Value.ToString(); 
       string numberOfDS = row.Cells[19].Value.ToString(); 
       RiseofTemp = row.Cells[20].Value.ToString(); 
       PApplied = row.Cells[21].Value.ToString(); 
       VApplied = row.Cells[22].Value.ToString(); 
       VContact = row.Cells[24].Value.ToString(); 
       IContact = row.Cells[25].Value.ToString(); 
       UNormal = row.Cells[26].Value.ToString(); 
       LimitandManual = row.Cells[27].Value.ToString(); 
       NoofManov = row.Cells[28].Value.ToString(); 
       Louput = row.Cells[29].Value.ToString(); 
       NDT = row.Cells[30].Value.ToString(); 
       NST = row.Cells[31].Value.ToString(); 
       IApplied = row.Cells[32].Value.ToString(); 
       Qman = row.Cells[7].Value.ToString(); 
       Qcomponent = row.Cells[8].Value.ToString(); 
       RAMan = row.Cells[9].Value.ToString(); 
       Experiance = row.Cells[10].Value.ToString(); 

       #endregion 

       //QMAN 




       string line = FileID + " " + FileType + " " + FileDesc1 + " " + FileDesc2 + " " + FileQty; 

       //QUAN=1 ADJF=1 DSTYPE=LDSD DSCASE=SSSCP NINC=1 QMAN=HIGH QCOM=HIGH RMAN=VRA EFACT=RMNP PLACE=DNIF NPIN=3 TRCM=TRUSER TEMPR=20 TJA=0 POWEOP=0 STMODE=STCALC VOLT=0.5 VOLTOP=0.5 VOLTRA=1 CHSA=4 DVDC=1 RFHFPF=2.5 

       var DataLine = string.Format("{0},{1},{2},{3} {4}", 
        FileID, FileType, 
        "QUAN=" + FileQty + " DSTYPE=" + FileDesc1 + " DSCASE=" + FileDesc2 + " NINC=" + numberOfDS + 
        " QMAN=" + Qman + " QCOM=" + Qcomponent + " RMAN=" + RAMan + " EFACT=" + Experiance + " NPIN=" + 
        NumberOfPins + " TRCM=TRUSER TEMPR=" + RiseofTemp 
        , "FID-" + FileID, Environment.NewLine); 
       csv.Append(DataLine); 

      } 
      if (type == "Pi_PROCESS&Pi_PM&LIFE PROFILE") 
      { 


       newLine = string.Format(
        "{0},{1},{2},{3},{4},{5},{6},{7},{9},{10},{11},{12},{13},{14},{15},{16},{17},{18},{19},{20},{21},{22},{23} {25}", 
        "AmbientTemp", "AppPollution", "CycleDuration", "DeltaTCycling", "Description", "EnvPollution", "HumanExposure", "MachineExposure", "MaxTCycling", "NetworkType", "NoCycles", "OnForPhase", "PhaseDuration", "ProductManip", "Project", "ProLevel","RandomVibs","RelHumidity","SalPollution", "SubIndex","SystemMobility","UserQual", "UserType","WeatherExposure", Environment.NewLine); 
       csv.Append(newLine); 
      } 





     } 

     File.WriteAllText(fileLoc, csv.ToString()); 
     MessageBox.Show("File written to" + fileLoc); 
    } 

    private void btnGenerateImport_Click(object sender, EventArgs e) 
    { 
     Stream myStream = null; 

     SaveFileDialog CSVGen = new SaveFileDialog(); 

     CSVGen.InitialDirectory = "C:\\"; 
     CSVGen.Filter = "CSV File (*.csv)|*.csv"; 
     CSVGen.FilterIndex = 2; 
     CSVGen.RestoreDirectory = true; 
     CSVGen.ShowDialog(); 

     string fileLoc = CSVGen.FileName; 

     GenerateCSV(fileLoc, cmbSheetSelect.Text); 

    } 














} 
}

來源

2015-09-17 Connor McCarthy

你必須使用反射來實現這一點

foreach(var sheetName in ExcelSheets) 
{ 
    var prop = this.GetType().GetField(sheetName, BindingFlags.NonPublic | BindingFlags.Instance); 
    prop.SetValue(this, dt.ReadFunction()); 
}

我在我的Form1構造函數中有以下，它爲我工作。

private DataTable Version, Pi_PROCESSPi_PMLIFEPROFILE, PIAPPLICATION, PIRUGGEDISING, ELECTRONICCOMPONENT, HFANDRFCOMPONENTS, HYBRIDANDMULTICHIPMODULE, COTSBOARDS, VARIOUSSUBASSEMBLIES, PARTCOUNT, FAMILYCOUNT; 

List<string> ExcelSheets = new List<string>(); 
public Form1() 
{ 
    InitializeComponent(); 

    var list = new string[] { "Version", "Pi_PROCESSPi_PMLIFEPROFILE", "PIAPPLICATION", "PIRUGGEDISING", "ELECTRONICCOMPONENT", "HFANDRFCOMPONENTS", "HYBRIDANDMULTICHIPMODULE", "COTSBOARDS", "VARIOUSSUBASSEMBLIES", "PARTCOUNT", "FAMILYCOUNT" }; 
    ExcelSheets= list.ToList(); 
    foreach(var sheet in ExcelSheets) 
    { 
     var prop = this.GetType().GetField(sheet, BindingFlags.NonPublic | BindingFlags.Instance); 
     Debug.WriteLine(prop.FieldType); 
     Debug.WriteLine(prop != null); 
    } 
}

來源

2015-09-17 11:53:43

嗨，該返回道具爲空引用？ –

你的DataTable在哪裏？它是否在同一類ExcelSheets中？ –

是它們是在該文件的頂部 - 存在着將它們分配給ExcelSheets列表的類：使用（SpreadsheetDocument mySpreadsheet = SpreadsheetDocument.Open（文件名，假）） { 小號片= mySpreadsheet.WorkbookPart 。 Workbook.Sheets; WorkbookPart wbPart; wbPart = mySpreadsheet.WorkbookPart; theSheets = wbPart.Workbook.Sheets; foreach（表格中的表格項） { ExcelSheets.Add（item.Name）; } } } –

將DataTable列表與字符串列表進行比較

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