songzheng45

private static async void DownloadRemoteImageFile(string url, string fileName)
{
    HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);
    HttpWebResponse response;
    try
    {
        WebResponse webResponse = await webRequest.GetResponseAsync();
        response = webResponse as HttpWebResponse;
    }
    catch (Exception ex)

songzheng45

/**
 * 将jQuery对象数组中的每个元素的数值，限定为指定精度
 * 该方法假设文本框是<input type="number" /> ，利用数值文本框的一些特性辅助校验
 */
var formatNumber = function (arrJqueryObjects, precision) {
    for (var idx = 0; idx < arrJqueryObjects.length; idx++) {
        var $elem = arrJqueryObjects[idx];

        $elem.on("keyup", function () {
            var numString = $(this).val().toString();

songzheng45

public class SqlWhereBuilder
{
	private readonly IList<string> whereList = new List<string>();

	private void AddInner(string name, object value, SearchType searchType)
	{
		//if (value is string || value is DateTime)
		//    whereList.Add($"{name}='{value}'");
		//else
		//    whereList.Add($"{name}={value}");

songzheng45

/// <summary>
/// 截取数字并保留指定小数位
/// </summary>
/// <param name="number">数字</param>
/// <param name="precision">要保留的小数位数</param>
/// <returns>截取后的数字</returns>
public static decimal TruncateNumber(decimal number, int precision)
{
    if (precision <= 0) return number;

songzheng45

$.isEmptyObject(someObject)

songzheng45

<style type="text/css">
    .noborder, .noborder tr, .noborder th, .noborder td {
        border: none;
    }
</style>

<table class="noborder">
    <tr><th>Somethingr</th></tr>
    <tr><td>Something</td></tr>
</table>

songzheng45

$("#div").tooltip({html: "111", isFocus : true})

songzheng45

$("#username").on("keydown", function (e) {
    if (e.keyCode == 13) {
      // 回车提交表单
      $("fooForm").trigger("submit"); 
    }
});

songzheng45

1. System.Net.Mail.SmtpException: 发送邮件失败。 ---> System.IO.IOException: 无法从传输连接中读取数据: net_io_connectionclosed。
(System.Net.Mail.SmtpException: Failure sending mail. Unable to read data from the transport connection)

2. System.Net.Mail.SmtpException: SMTP 服务器要求安全连接或客户端未通过身份验证。 服务器响应为:5.5.1 Authentication Required.
  该异常是在使用 gmail 时抛出的。
  
3. 异常信息："5.5.2 helo command rejected need fully-qualified hostname"
   错误代码：504 5.5.2 Helo command rejected: need fully-qualified hostname
　　错误原因：对方服务器的HELO信息不是完整的域名
　　处理方式：请对方检查其HELO命令提供的域名信息，且保证其符合RFC1035国际标准的规定。

songzheng45

window.location.href = '...';