Question

检查下面的代码：

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>

代码背后：

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？喜欢，＆＃34; TheDate＆＃34;领域，从＆＃39; 6/18/2014 12:00:00 AM＆＃39;至＆＃39; 18 / Jun / 2014＆＃39;。也适用于＆＃39; Number02＆＃39;字段，我该如何格式化呢？喜欢，来自＆＃39; 0.829＆＃39;成为＆＃39; 0.83＆＃39;。

Answer 1

您可以使用ToString（）和Custom Date and Time Format Strings

格式化日期时间

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

您可以使用Math.Round格式化数字

Number02 = Math.Round(Number02, 2);

您可以直接格式化您正在制作的html字符串中的日期和数字

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

SQLDataReader GetDateTime格式

1 个答案: