C# VS 2015：获得；引发异常：'；System.Data.OleDb.OleDbException'；在System.Data.dll中“；尝试连接到Excel时_C#_Ado.net_Visual Studio 2015_Oledb_Oledbexception

C# VS 2015：获得；引发异常：'；System.Data.OleDb.OleDbException'；在System.Data.dll中“；尝试连接到Excel时

c# visual-studio-2015

C# VS 2015：获得；引发异常：'；System.Data.OleDb.OleDbException'；在System.Data.dll中“；尝试连接到Excel时,c#,ado.net,visual-studio-2015,oledb,oledbexception,C#,Ado.net,Visual Studio 2015,Oledb,Oledbexception,好的，这是我的代码： using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Data.OleDb;

好的，这是我的代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.OleDb;

namespace DisplayingDataFromExcelSheets
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string datasource = @"C:\Users\E180728\Documents\FakeGradesTable.xlsx";
            string cs = @"Provider=Microsoft.ACE.OLEDB.12.0; Data Source=" + datasource + ";Extended Properties='Excel 12.0;HDR=YES'";
            OleDbConnection cn = new OleDbConnection(cs);
            Console.WriteLine("Connecting to: " + cs);
            OleDbDataAdapter da = new OleDbDataAdapter("select * from [marks$]", cn);
            DataSet ds = new DataSet();
            da.Fill(ds, "marks");
            dataGridView1.DataSource = ds.Tables[0];

        }
    }
}

当我尝试运行此操作时，表单会显示一个空白的DataGridView，输出中将显示以下内容：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.OleDb;

namespace DisplayingDataFromExcelSheets
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string datasource = @"C:\Users\E180728\Documents\FakeGradesTable.xlsx";
            string cs = @"Provider=Microsoft.ACE.OLEDB.12.0; Data Source=" + datasource + ";Extended Properties='Excel 12.0;HDR=YES'";
            OleDbConnection cn = new OleDbConnection(cs);
            Console.WriteLine("Connecting to: " + cs);
            OleDbDataAdapter da = new OleDbDataAdapter("select * from [marks$]", cn);
            DataSet ds = new DataSet();
            da.Fill(ds, "marks");
            dataGridView1.DataSource = ds.Tables[0];

        }
    }
}

'DisplayingDataFromExcelSheets.vshost.exe'（CLR v4.0.30319:DisplayingDataFromExcelSheets.vshost.exe）：加载'C:\windows\Microsoft.Net\assembly\GAC\U 32\mscorlib\v4.0.0.0\UU b77a5c561934e089\mscorlib.dll'。已跳过加载符号。模块已优化，并且调试器选项“仅我的代码”已启用

'DisplayingDataFromExcelSheets.vshost.exe'（CLR v4.0.30319:DisplayingDataFromExcelSheets.vshost.exe）：加载'C:\windows\assembly\GAC\MSIL\Microsoft.VisualStudio.HostingProcess.Utilities\14.0.0.0_uuB03F5F7F11D50A3A\Microsoft.VisualStudio.HostingProcess.Utilities.dll'。已跳过加载符号。模块已优化，并且调试器选项“仅我的代码”已启用

'DisplayingDataFromExcelSheets.vshost.exe'（CLR v4.0.30319:DisplayingDataFromExcelSheets.vshost.exe）：加载'C:\windows\Microsoft.Net\assembly\GAC\U MSIL\System.windows.Forms\v4.0.0\UU b77a5c561934e089\System.windows.Forms.dll'。已跳过加载符号。模块已优化，并且调试器选项“仅我的代码”已启用。 'DisplayingDataFromExcelSheets.vshost.exe'（CLR v4.0.30319:DisplayingDataFromExcelSheets.vshost.exe）：加载'C:\windows\Microsoft.Net\assembly\GAC\U MSIL\System\v4.0.0.0\UU b77a5c561934e089\System.dll'。已跳过加载符号。模块已优化，并且调试器选项“仅我的代码”已启用

“DisplayingDataFromExcelSheets.vshost.exe”（CLR v4.0.30319:DisplayingDataFromExcelSheets.vshost.exe）：加载了“C:\windows\assembly\GAC\MSIL\Microsoft.VisualStudio.HostingProcess.Utilities.Sync\14.0.0\uu b03f5f7f11d50a3a\Microsoft.VisualStudio.HostingProcess.Utilities.Sync.dll”。已跳过加载符号。模块已优化，并且调试器选项“仅我的代码”已启用

'DisplayingDataFromExcelSheets.vshost.exe'（CLR v4.0.30319:DisplayingDataFromExcelSheets.vshost.exe）：加载'C:\windows\assembly\GAC\U MSIL\Microsoft.VisualStudio.Debugger.Runtime\14.0.0.0_uB03F5F7F11D50A3A\Microsoft.VisualStudio.Debugger.Runtime.dll'。已跳过加载符号。模块已优化，并且调试器选项“仅我的代码”已启用

'DisplayingDataFromExcelSheets.vshost.exe'（CLR v4.0.30319:DisplayingDataFromExcelSheets.vshost.exe）：加载'C:\Users\E180728\Documents\Visual Studio 2015\Projects\ADOProject\DisplayingDataFromExcelSheets\bin\Debug\DisplayingDataFromExcelSheets.vshost.exe'。已跳过加载符号。模块已优化，并且调试器选项“仅我的代码”已启用

'DisplayingDataFromExcelSheets.vshost.exe'（CLR v4.0.30319:DisplayingDataFromExcelSheets.vshost.exe）：加载'C:\windows\Microsoft.Net\assembly\GAC\U MSIL\Microsoft.CSharp\v4.0.0.0\uu b03f5f7f11d50a3a\Microsoft.CSharp.dll'。已跳过加载符号。模块已优化，并且调试器选项“仅我的代码”已启用

'DisplayingDataFromExcelSheets.vshost.exe'（CLR v4.0.30319:DisplayingDataFromExcelSheets.vshost.exe）：加载'C:\windows\Microsoft.Net\assembly\GAC\U 32\System.Data\v4.0.0.0\UU b77a5c561934e089\System.Data.dll'。已跳过加载符号。模块已优化，并且调试器选项“仅我的代码”已启用

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