Question

任何人都可以帮助动态格式化两列的货币数据类型吗？

using System;
using System.Data;
using Microsoft.SqlServer.Dts.Runtime;
using System.Windows.Forms;
using System.Data.OleDb;
using System.IO;
using System.Reflection;

namespace ST_367d705c54de4e9e9f890350f933c80b.csproj

{
    [Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute]
    public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase
    {
    #region VSTA generated code
    enum ScriptResults
    {
        Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
        Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
    };
    #endregion


    public void Main()
    {
        string basePath = Dts.Variables["User::VarDirectoryPath"].Value.ToString();

        try
        {
            OleDbDataAdapter A = new OleDbDataAdapter();
            System.Data.DataTable dt = new System.Data.DataTable();

            var delimiter = Dts.Variables["User::VarDelimiter"].Value.ToString();
            A.Fill(dt, Dts.Variables["User::VarObject"].Value);

            basePath = Dts.Variables["User::VarDirectoryPath"].Value.ToString();
            string filePath = Path.Combine(basePath, (Dts.Variables["User::VarFileName_1"].Value.ToString()
                + Dts.Variables["User::VarDate"].Value.ToString() + Dts.Variables["User::VarFileExtension_1"].Value.ToString()));

            int i = 0;
            StreamWriter sw = null;

            using (sw = new StreamWriter(filePath, false))
            {
                for (i = 0; i < dt.Columns.Count; i++)
                {
                    sw.Write(dt.Columns[i].ToString() + Dts.Variables["User::VarDelimiter"].Value.ToString());
                }

                sw.WriteLine();

                foreach (DataRow row in dt.Rows)
                {
                    object[] array = row.ItemArray;
                    for (i = 0; i < array.Length; i++)
                    {
                        object val = array[i];
                        if (val == "0")
                            sw.Write(string.Format("#.##", val) + delimiter);
                        else
                            sw.Write(val + delimiter);
                    }

                    sw.WriteLine();
                }

                sw.Close();
            }
        }
        catch (Exception ex)
        {
            string file = string.Format("err_{0}.txt", Dts.Variables["User::VarDate"].Value.ToString());
            File.WriteAllText(Path.Combine(basePath, file), ex.ToString());
        }

        Dts.TaskResult = (int)ScriptResults.Success;
    }
}
}

有什么建议吗？数据表中有10列，而第3,4,5列需要格式化为两位小数，如果值等于零或为空，还需要输入0.00。

Answer 1

以下是格式化小数的示例：

https://dotnetfiddle.net/da7UoR

using System;

public class Program
{
    public static void Main()
    {
        decimal val1 = 0m;
        decimal val2 = 125580m;


        Console.WriteLine(val1.ToString("0.00"));
        //Output 0.00

        Console.WriteLine(val2.ToString("0.00"));
        //Output 125580.00

        //Money format
        Console.WriteLine(val1.ToString("C"));      
        //Output $0.00

        Console.WriteLine(decimalToFormattedString(val1));
        //Output 0.00

        Console.WriteLine(decimalToFormattedString(val2));
        //Output 125580.00
    }

    public static string decimalToFormattedString(decimal myValue)
    {   
        return myValue.ToString("0.00");
    }
}

在c＃中格式化货币数据表值

1 个答案: