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Asp.net常用的操作函数

發(fā)布時間：2025/7/25 编程问答 18 豆豆

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?? ? ? ?///?<summary>
????????///?取得本周第一天的日期，即星期日
????????///?</summary>
????????///?<returns></returns>
????????public?static?string?GetWeekFirstDate()
????????{
????????????return?DateTime.Now.AddDays(Convert.ToDouble((0?-?Convert.ToInt16(DateTime.Now.DayOfWeek)))).ToShortDateString();
????????}
????????///?<summary>
????????///?取得本周最后一天的日期
????????///?</summary>
????????///?<returns></returns>
????????public?static?string?GetWeekLastDate()
????????{
????????????return?DateTime.Now.AddDays(Convert.ToDouble((6?-?Convert.ToInt16(DateTime.Now.DayOfWeek)))).ToShortDateString();
????????}
????????///?<summary>
????????///?轉換成Long型,錯誤返回-1
????????///?</summary>
????????///?<param?name="value"></param>
????????///?<returns></returns>
????????public?static?long?ConvertToLong(object?value)
????????{
????????????long?id?=?-1;
????????????long.TryParse(value.ToString(),?out?id);
????????????return?id;
????????}
????????///?<summary>
????????///?轉換成Double型,錯誤返回-1
????????///?</summary>
????????///?<param?name="value"></param>
????????///?<returns></returns>
????????public?static?double?ConvertToDouble(object?value)
????????{
????????????double?id?=?-1;
????????????double.TryParse(value.ToString(),?out?id);
????????????return?id;
????????}
????????///?<summary>
????????///?轉換成Int型,-1轉換錯誤
????????///?</summary>
????????///?<param?name="value"></param>
????????///?<returns></returns>
????????public?static?int?ConvertToInt(object?value)
????????{
????????????int?id?=?-1;
????????????int.TryParse(value.ToString(),?out?id);
????????????return?id;
????????}
????????///?<summary>
????????///?綁定數(shù)據(jù)到ListControl
????????///?</summary>
????????///?<param?name="lc"></param>
????????///?<param?name="dt"></param>
????????///?<param?name="strText"></param>
????????///?<param?name="strValue"></param>
????????public?static?void?BindDrop(ListControl?lc,?DataTable?dt,?string?strText,?string?strValue)
????????{
????????????lc.Items.Clear();
????????????foreach?(DataRow?myRow?in?dt.Rows)
????????????{
????????????????lc.Items.Add(new?ListItem(myRow[strText].ToString(),?myRow[strValue].ToString()));
????????????}
????????????lc.DataBind();
????????}
????????///?<summary>
????????///?綁定數(shù)據(jù)到ListControl
????????///?</summary>
????????///?<param?name="lc"></param>
????????///?<param?name="dt"></param>
????????///?<param?name="strText"></param>
????????///?<param?name="strValue"></param>
????????public?static?void?BindDrop(ListControl?lc,?DataTable?dt,?string?strText,?string?strValue,?string?FirstText,?string?FirstValue)
????????{
????????????lc.Items.Clear();
????????????lc.Items.Add(new?ListItem(FirstText,?FirstValue));
????????????foreach?(DataRow?myRow?in?dt.Rows)
????????????{
????????????????lc.Items.Add(new?ListItem(myRow[strText].ToString(),?myRow[strValue].ToString()));
????????????}
????????????lc.DataBind();
????????}
????????///?<summary>
????????///?綁定數(shù)據(jù)到ListControl
????????///?</summary>
????????///?<param?name="lc"></param>
????????///?<param?name="FirstText"></param>
????????///?<param?name="FirstValue"></param>
????????public?static?void?BindDrop(ListControl?lc,?string?FirstText,?string?FirstValue)
????????{
????????????lc.Items.Clear();
????????????lc.Items.Add(new?ListItem(FirstText,?FirstValue));
????????????lc.DataBind();
????????}
????????public?static?void?BindDataDrop(ListControl?list,?int?iBegin,?int?iEnd)
????????{
????????????list.Items.Clear();
????????????int?count?=?iEnd?-?iBegin;
????????????for?(int?i?=?iBegin;?i?<=?iEnd;?i++)
????????????{
????????????????list.Items.Add(i.ToString());
????????????}
????????}
????????///?<summary>
????????///根據(jù)指定值選定控件中中的項
????????///?</summary>
????????///?<param?name="rbl">控件名</param>
????????///?<param?name="flg">指定值</param>
????????///?<returns></returns>
????????public?static?bool?SelectFlg(ListControl?rbl,?string?flg)
????????{
????????????bool?isSelect?=?false;
????????????int?FlgCount?=?rbl.Items.Count;
????????????if?(flg?==?null)
????????????{
????????????????flg?=?"";
????????????}
????????????if?(flg?!=?null)
????????????{
????????????????for?(int?i?=?0;?i?<=?FlgCount?-?1;?i++)
????????????????{
????????????????????if?(rbl.Items[i].Value.Trim()?==?flg.Trim())
????????????????????{
????????????????????????isSelect?=?true;
????????????????????????rbl.SelectedIndex?=?i;
????????????????????????break;
????????????????????}
????????????????}
????????????}
????????????return?isSelect;
????????}
????????///?<summary>
????????///根據(jù)指定值選定控件中中的項
????????///?</summary>
????????///?<param?name="rbl">控件名</param>
????????///?<param?name="flg">指定值</param>
????????///?<returns></returns>
????????public?static?void?SelectFlg(ListControl?rbl,?DataTable?dt,?string?ColumnName)
????????{
????????????bool?isSelect?=?false;
????????????int?FlgCount?=?rbl.Items.Count;
????????????foreach?(DataRow?row?in?dt.Rows)
????????????{
????????????????string?flg?=?row[ColumnName].ToString();
????????????????if?(flg?==?null)
????????????????{
????????????????????flg?=?"";
????????????????}
????????????????if?(flg?!=?null)
????????????????{
????????????????????for?(int?i?=?0;?i?<=?FlgCount?-?1;?i++)
????????????????????{
????????????????????????if?(rbl.Items[i].Value.Trim()?==?flg.Trim())
????????????????????????{
????????????????????????????isSelect?=?true;
????????????????????????????rbl.Items[i].Selected?=?true;
????????????????????????}
????????????????????}
????????????????}
????????????}
????????}
????????///?<summary>
????????///根據(jù)指定值選定控件中中的項
????????///?</summary>
????????///?<param?name="rbl">控件名</param>
????????///?<param?name="flg">指定值</param>
????????///?<returns></returns>
????????public?static?string[]?GetDropSelect(ListControl?rbl)
????????{
????????????//rbl.Items
????????????string?strValue?=?"";
????????????int?FlgCount?=?rbl.Items.Count;
????????????for?(int?i?=?0;?i?<=?FlgCount?-?1;?i++)
????????????{
????????????????if?(rbl.Items[i].Selected)
????????????????{
????????????????????strValue?+=?";"?+?rbl.Items[i].Value;
????????????????????//rbl.SelectedIndex?=?i;????????????????????????
????????????????}
????????????}
????????????strValue?=?strValue.Remove(0,?1);
????????????return?strValue.Split(';');
????????}
????????///?<summary>
????????///根據(jù)指定值選定控件中中的項
????????///?</summary>
????????///?<param?name="rbl">控件名</param>
????????///?<param?name="flg">指定值</param>
????????///?<returns></returns>
????????public?static?bool?SelectFlg(ListControl?rbl,?object?flg)
????????{
????????????bool?isSelect?=?false;
????????????int?FlgCount?=?rbl.Items.Count;
????????????if?(flg?==?null)
????????????{
????????????????flg?=?"";
????????????}
????????????if?(flg?!=?null)
????????????{
????????????????for?(int?i?=?0;?i?<=?FlgCount?-?1;?i++)
????????????????{
????????????????????if?(rbl.Items[i].Value.Trim()?==?flg.ToString().Trim())
????????????????????{
????????????????????????isSelect?=?true;
????????????????????????rbl.SelectedIndex?=?i;
????????????????????????break;
????????????????????}
????????????????}
????????????}
????????????return?isSelect;
????????}
????????///<summary>
????????///根據(jù)指定值選定控件中中的項
????????///?</summary>
????????///?<param?name="rbl">控件名</param>
????????///?<param?name="flg">指定值</param>
????????///?<returns></returns>
????????public?static?bool?SelectText(ListControl?rbl,?string?flg)
????????{
????????????bool?isSelect?=?false;
????????????int?FlgCount?=?rbl.Items.Count;
????????????if?(flg?==?null)
????????????{
????????????????flg?=?"";
????????????}
????????????if?(flg?!=?null)
????????????{
????????????????for?(int?i?=?0;?i?<=?FlgCount?-?1;?i++)
????????????????{
????????????????????if?(rbl.Items[i].Text.Trim()?==?flg.Trim())
????????????????????{
????????????????????????isSelect?=?true;
????????????????????????rbl.SelectedIndex?=?i;
????????????????????????break;
????????????????????}
????????????????}
????????????}
????????????return?isSelect;
????????}
????????///?<summary>
????????///?將字符串轉換為日期
????????///?</summary>
????????///?<param?name="p"></param>
????????///?<returns></returns>
????????public?static?DateTime?ParseDateTime(string?p)
????????{
????????????try
????????????{
????????????????if?(p?!=?string.Empty)
????????????????{
????????????????????return?Convert.ToDateTime(p);
????????????????}
????????????????else
????????????????{
????????????????????return?DateTime.MinValue;
????????????????}
????????????}
????????????catch?(Exception?err)
????????????{
????????????????return?DateTime.Now;
????????????}
????????}
????
????????///?<summary>
????????///?將表中指定的一個字段構造成數(shù)組
????????///?</summary>
????????///?<param?name="_SetUpedTable">Table</param>
????????///?<param?name="column">指定的字段</param>
????????///?<returns></returns>
????????public?static?string[]?AddTableColumnToArrayMethod(DataTable?_SetUpedTable,?string?column)
????????{
????????????string[]?setUpArray?=?new?string[_SetUpedTable.Rows.Count];
????????????for?(int?i?=?0;?i?<?setUpArray.Length;?i++)
????????????{
????????????????setUpArray[i]?=?_SetUpedTable.Rows[i][column].ToString();
????????????}
????????????return?setUpArray;
????????}
????????///?<summary>
????????///?是否為日期型字符串
????????///?</summary>
????????///?<param?name="StrSource">日期字符串(2008-05-08)</param>
????????///?<returns></returns>
????????public?static?bool?IsDate(string?StrSource)
????????{
????????????return?Regex.IsMatch(StrSource,?@"^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-9]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))$");
????????}
????????///?<summary>
????????///?是否為時間型字符串
????????///?</summary>
????????///?<param?name="source">時間字符串(15:00:00)</param>
????????///?<returns></returns>
????????public?static?bool?IsTime(string?StrSource)
????????{
????????????return?Regex.IsMatch(StrSource,?@"^((20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d)$");
????????}
????????///?<summary>
????????///?是否為日期+時間型字符串
????????///?</summary>
????????///?<param?name="source"></param>
????????///?<returns></returns>
????????public?static?bool?IsDateTime(string?StrSource)
????????{
????????????return?Regex.IsMatch(StrSource,?@"^(((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))?(20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d)$?");
????????}
????????///?<summary>
????????///?在指定的目錄寫入文件
????????///?</summary>
????????///?<param?name="driectory">文件夾的路徑</param>
????????///?<param?name="content">寫入的文本內容</param>
????????///?<param?name="fileName">寫入的文本文件名稱</param>
????????public?static?void?WriteFile(string?driectory,?string?content,?string?fileName)
????????{
????????????CreateDirectory(driectory);
????????????FileStream?fs?=?new?FileStream(driectory?+?fileName,?FileMode.OpenOrCreate,?FileAccess.Write);
????????????StreamWriter?m_streamWriter?=?new?StreamWriter(fs);
????????????m_streamWriter.BaseStream.Seek(0,?SeekOrigin.End);
????????????m_streamWriter.WriteLine(content?+?"\n");
????????????m_streamWriter.Flush();
????????????m_streamWriter.Close();
????????????fs.Close();
????????}
????????///?<summary>???
????????///?遞歸創(chuàng)建文件夾???
????????///?</summary>???
????????///?<param?name="directoryName">文件夾的路徑</param>???
????????private?static?void?CreateDirectory(string?directoryName)
????????{
????????????string?sParentDirectory?=?Path.GetDirectoryName(directoryName);
????????????if?(!Directory.Exists(sParentDirectory))
????????????????CreateDirectory(sParentDirectory);
????????????if?(!Directory.Exists(directoryName))
????????????????Directory.CreateDirectory(directoryName);
????????}

轉載于:https://www.cnblogs.com/powerfan/archive/2011/03/29/1998629.html

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