asp.net 异常出现跳转到错误页
WPF中DataGrid的样式

[asp.net]遇到的常用方法

stef posted @ 2011年12月07日 20:22 in .net , 2468 阅读

1. 先验证后弹框的方法（页面有验证控件的前提）

        /// <summary>
        /// 先验证再弹框
        /// </summary>
        private string strJs = @"if (typeof(Page_ClientValidate) == 'function')
                                {{ if(Page_ClientValidate('{0}')) 
                                    return window.confirm('{1}');}}  ";

2.asp:Button中window.location.href无法跳转，必须添加return false;

3.使用window.location.href无法用Request.UrlReferrer获取.

        /// <summary>
        /// 设置按钮
        /// </summary>
        private string strBtnGoJS = @"var tempa = document.createElement('a'); 
                        tempa.href = 'xxx.aspx';
                        document.getElementsByTagName('body')[0].appendChild(tempa);
                        tempa.click();
                        return false;";

4.用IFrame嵌套其他aspx页，发现IE7，IE8表现的不一样，经过调查，发现是嵌套页重复加载模板，删除就好了。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

5.获取某年指定周的开始日期和结束日期，参考的这里：http://blog.csdn.net/vrhero/article/details/2042481

  小小的做了下更改：

 

        // <summary>  
        /// 获取一年中指定的一周的开始日期和结束日期。开始日期遵循ISO 8601即星期一。  
        /// </summary>  
        /// <remarks>Write by vrhero</remarks>  
        /// <remarks>update by stef</remarks>
        /// <param name="year">年（1 到 9999）</param>  
        /// <param name="weeks">周（1 到 53）</param>  
        /// <param name="weekrule">确定首周的规则</param>  
        /// <param name="first">当此方法返回时，则包含参数 year 和 weeks 指定的周的开始日期的 System.DateTime 值；如果失败，则为 System.DateTime.MinValue。如果参数 year 或 weeks 超出有效范围，则操作失败。该参数未经初始化即被传递。</param>  
        /// <param name="last">当此方法返回时，则包含参数 year 和 weeks 指定的周的结束日期的 System.DateTime 值；如果失败，则为 System.DateTime.MinValue。如果参数 year 或 weeks 超出有效范围，则操作失败。该参数未经初始化即被传递。</param>  
        /// <returns>成功返回 true，否则为 false。</returns>  
        public static bool GetDaysOfWeeks(int year, int weeks, CalendarWeekRule weekrule, out DateTime first, out DateTime last)
        {
            //初始化 out 参数  
            first = DateTime.MinValue;
            last = DateTime.MinValue;

            //不用解释了吧...  
            if (year < 1 | year > 9999)
                return false;

            //一年最多53周地球人都知道...  
            if (weeks < 1 | weeks > 53)
                return false;

            //取当年首日为基准...为什么？容易得呗...  
            DateTime firstCurr = new DateTime(year, 1, 1);
            //取下一年首日用于计算...  
            DateTime firstNext = new DateTime(year + 1, 1, 1);

            //将当年首日星期几转换为数字...星期日特别处理...ISO 8601 标准...  
            int dayOfWeekFirst = (int)firstCurr.DayOfWeek;
            if (dayOfWeekFirst == 0) dayOfWeekFirst = 7;

            //得到未经验证的周首日...  
            // 获得当年第一天这周的第一天
            DateTime firstDayOfWeekOfFirstDay = new DateTime();
            firstDayOfWeekOfFirstDay = firstCurr.AddDays(-dayOfWeekFirst + 1);
            first = firstCurr.AddDays((weeks - 1) * 7 - dayOfWeekFirst + 1);
            // 这里做了下修正：  
            //周首日是上一年日期的情况...  
            if (firstDayOfWeekOfFirstDay.Year < year)
            {
                switch (weekrule)
                {
                    case CalendarWeekRule.FirstDay:
                        //不用解释了吧...  
                        first = firstCurr;
                        break;
                    case CalendarWeekRule.FirstFullWeek:
                        //顺延一周...  
                        first = first.AddDays(7);
                        break;
                    case CalendarWeekRule.FirstFourDayWeek:
                        //周首日距年首日不足4天则顺延一周...  
                        if (firstCurr.Subtract(first).Days > 3)
                        {
                            first = first.AddDays(7);
                        }
                        break;
                    default:
                        break;
                }
            }
            //得到未经验证的周末日...  
            last = first.AddDays(7).AddSeconds(-1);
            switch (weekrule)
            {
                case CalendarWeekRule.FirstDay:
                    //周末日是下一年日期的情况...   
                    if (last.Year > year)
                        last = firstNext.AddSeconds(-1);
                    else if (last.DayOfWeek != DayOfWeek.Monday)
                        last = first.AddDays(7 - (int)first.DayOfWeek).AddSeconds(-1);
                    break;
                case CalendarWeekRule.FirstFourDayWeek:
                    //周末日距下一年首日不足4天则提前一周...   
                    if (last.Year > year && firstNext.Subtract(first).Days < 4)
                    {
                        first = first.AddDays(-7);
                        last = last.AddDays(-7);
                    }
                    break;
                default:
                    break;
            }
            return true;
        }

  6.Visual Studio 的快捷键调整，在options->Environment->Keyboard里面第一个下拉框选择，然后点击下面的OK按钮就可以了。

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2022年7月22日 00:03

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Tom Cruise Top Gun J 说:
2022年9月06日 00:33

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Cobra Kai S05 Terry 说:
2022年10月12日 01:20

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