SQLDataReader获取日期时间格式

本文关键字：格式 时间 取日期 获取 SQLDataReader | 更新日期: 2023-09-27 18:11:37

查看下面的代码:

HTML页面:

<table width="100%" align="right" cellpadding="2" cellspacing="2" border="0" bgcolor="#EAEAEA">
    <tr align="center" style="background-color: yellow; color: black;">
        <th colspan="2">Fauzan</th>
        <th colspan="2">Febri</th>
    </tr>
    <tr align="left" style="background-color: gray; color: black;">
        <td>ID</td>
        <td>Number01</td>
        <td>TheDate</td>
        <td>Number02</td>
    </tr>
    <%=getWhileLoopData()%>
</table>

背后的代码:

public string getWhileLoopData() 
{
 string htmlStr = "";
 SqlConnection thisConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["MyConnectionString"].ConnectionString);
 SqlCommand thisCommand = thisConnection.CreateCommand();
 thisCommand.CommandText = "SELECT * FROM MyTable WHERE TheDate = @TheDate";
 thisCommand.Parameters.AddWithValue("@TheDate", txtDate.Text);
 thisConnection.Open();
 SqlDataReader reader = thisCommand.ExecuteReader();
 while (reader.Read()) {
     int id = reader.GetInt32(0);
     int Number01 = reader.GetInt32(1);
     DateTime TheDate = reader.GetDateTime(2);
     Decimal Number02 = reader.GetDecimal(3);
     //string Pass = reader.GetString(2);
     htmlStr += "<tr><td>" + id + "</td><td>" + Number01 + "</td><td>" + TheDate + "</td><td>" + Number02 + "</td></tr>";
 }
 thisConnection.Close();
 return htmlStr;
}

问题是，我如何格式化数据阅读器?比如，"TheDate"字段，从'6/18/2014 12:00:00 AM'到'18/june/2014'。也为'Number02'字段，我怎么能格式化它?从"0.829",成为"0.83"。

SQLDataReader获取日期时间格式

您可以使用ToString()使用自定义日期和时间格式字符串来格式化datetime 

string strDate = TheDate.ToString("dd/MMM/yyyy");

你可以用Math。四舍五入格式化数字

Number02 = Math.Round(Number02, 2);

你可以直接在你正在制作的html字符串中格式化日期和数字

htmlStr += "<tr><td>" + id + "</td><td>" + Number01 + "</td><td>" +
   TheDate.ToString("dd/MMM/yyyy") + "</td><td>" +  Math.Round(Number02, 2) + "</td></tr>";
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