C# 将DataTable存储到DBF文件中

（准备）生成一个DataTable

/// <summary>
/// 生成一个数据表
/// </summary>
/// <returns></returns>
static DataTable GetTable()
{
    try
    {
        DataTable dt = new DataTable("Characters");
                 
        dt.Columns.Add("Column0");
        dt.Columns.Add("Column1");
        dt.Columns.Add("Column2");
        dt.Columns.Add("Column3");
 
        dt.Rows.Add("abc", "def", "ghi", "jkl");
        dt.Rows.Add("def", "ghi", "jkl", "mno");
        dt.Rows.Add("ghi", "jkl", "mno", "pqr");
        dt.Rows.Add("jkl", "mno", "pqr", "stu");
 
        Console.WriteLine("Set DataTable: " + dt.TableName);
        foreach (DataRow dr in dt.Rows)
        {
            foreach (object  obj in dr.ItemArray)
            {
                Console.Write(obj.ToString() + " ");
            }
            Console.WriteLine();
        }
        Console.WriteLine("Mission complete!");
 
        return dt;
    }
    catch
    {
        return null;
    }
}

函数：将DataTable的内容输出到DBF文件

/// <summary>
/// 将数据表写入到DBF文件中
/// </summary>
/// <param name="dt"></param>
static void WriteToDbf(DataTable dt)
{
    Console.WriteLine("Writing to: " + dt.TableName + ".dbf ...");
 
    //连接字符串
    string sConn =
        "Provider=Microsoft.Jet.OLEDB.4.0; " +
        "Data Source=" + System.IO.Directory.GetCurrentDirectory() + "; " +
        "Extended Properties=dBASE IV;";
    OleDbConnection conn = new OleDbConnection(sConn);
    conn.Open();
 
    try
    {
        //如果存在同名文件则先删除
        if (File.Exists(dt.TableName + ".dbf"))
        {
            Console.WriteLine("Delete file: " + dt.TableName + ".dbf ...");
            File.Delete(dt.TableName + ".dbf");
        }
 
        OleDbCommand cmd;
 
        //建立新表
        StringBuilder sbCreate = new StringBuilder();
        sbCreate.Append("CREATE TABLE " + dt.TableName + ".dbf (");
        for (int i = 0; i < dt.Columns.Count; i++)
        {
            sbCreate.Append(dt.Columns[i].ColumnName);
            sbCreate.Append(" char(25)");
            if (i != dt.Columns.Count - 1)
            {
                sbCreate.Append(", ");
            }
            else
            {
                sbCreate.Append(')');
            }
        }
 
        Console.WriteLine("
Creating Table ...");
        Console.WriteLine(sbCreate.ToString());
        cmd = new OleDbCommand(sbCreate.ToString(), conn);
        cmd.ExecuteNonQuery();
 
        //插入各行
        StringBuilder sbInsert = new StringBuilder();
        foreach (DataRow dr in dt.Rows)
        {
            sbInsert.Clear();
            sbInsert.Append("INSERT INTO " + dt.TableName + ".dbf (");
            for (int i = 0; i < dt.Columns.Count; i++)
            {
                sbInsert.Append(dt.Columns[i].ColumnName);
                if (i != dt.Columns.Count - 1)
                {
                    sbInsert.Append(", ");
                }
            }
            sbInsert.Append(") VALUES (");
            for (int i = 0; i < dt.Columns.Count; i++)
            {
                sbInsert.Append("'" + dr[i].ToString() + "'");
                if (i != dt.Columns.Count - 1)
                {
                    sbInsert.Append(", ");
                }
            }
            sbInsert.Append(')');
 
            Console.WriteLine("
Inserting lines ...");
            Console.WriteLine(sbInsert.ToString());
            cmd = new OleDbCommand(sbInsert.ToString(), conn);
            cmd.ExecuteNonQuery();
        }
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);
    }
 
    conn.Close();
}

Main函数中的调用

static void Main(string[] args)
{
    DataTable dt = GetTable(); //生成一个数据表
    WriteToDbf(dt); //将数据表输出到DBF表中
 
    Console.ReadLine();
7 }

运行结果

转自：http://my.oschina.net/Tsybius2014/blog/282797