tdx
251 lines
9.3 KiB
C#
251 lines
9.3 KiB
C#
/******************************
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* 说明：DataTable相关扩展方法
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* 创建人：龚宇超
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* 创建日期：2017-11-15
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* 修改人：
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* 修改日期：
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* 修改备注：
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* 版本：1.0.0.0
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******************************/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Data;
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using System.Collections;
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using System.Threading.Tasks;
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namespace Lskj.Util
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{
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/// <summary>
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/// DataTable相关扩展方法
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/// </summary>
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public static class DataTableExtend
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{
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public static TaskSchedulerUtil SchedulerUtil = new TaskSchedulerUtil(30);
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/// <summary>
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/// <para>说明：移除DataTable中DataRow空白行</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2017-11-15 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="rows">The rows.</param>
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public static DataTable TrimEmptyRows(this DataTable table)
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{
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//GridView.DeleteSelectedRows()只是改变了数据状态为delete,数据依然存在于table中需要更新
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table.AcceptChanges();
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if (table == null) return table;
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int rowCount = table.Rows.Count;
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for (int i = rowCount - 1; i > 0; i--)
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{
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bool isNull = true;
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DataRow item = table.Rows[i];
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for (int j = 0; j < table.Columns.Count; j++)
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{
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DataColumn col = table.Columns[j];
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if (!string.IsNullOrWhiteSpace(item[col.ColumnName] + ""))
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{
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isNull = false;
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break;
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}
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}
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if (isNull)
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{
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table.Rows.Remove(item);
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}
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}
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return table;
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}
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/// <summary>
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/// <para>说明：移除DataTable中已删除的行</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2017-11-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="table">The table.</param>
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/// <returns>DataTable.</returns>
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public static DataTable TrimDeleteRows(this DataTable table)
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{
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if (table == null || table.Rows.Count == 0) return table;
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DataRow[] deleteRows = table.Rows.Cast<DataRow>().Where(x => x.RowState == DataRowState.Deleted).ToArray();
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for (int i = 0; i < deleteRows.Length; i++)
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{
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table.Rows.Remove(deleteRows[i]);
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}
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return table;
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}
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/// <summary>
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/// <para>说明：按field排序DataTable</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2017-11-30 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="table">The table.</param>
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/// <param name="field">The field.</param>
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/// <returns>DataTable.</returns>
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public static DataTable OrderBy(this DataTable table, string field, bool isAccept = true)
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{
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if (table == null || table.Rows.Count == 0 || string.IsNullOrEmpty(field) || !table.Columns.Contains(field)) return table;
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if (isAccept) table.AcceptChanges();
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table = table.TrimDeleteRows();
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for (int i = 0; i < table.Rows.Count; i++)
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{
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table.Rows[i][field] = (i + 1);
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}
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return table;
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}
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public static DataTable OrderBy(this DataTable table, string field, int startIndex, int endIndex)
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{
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if (table == null || table.Rows.Count == 0 || string.IsNullOrEmpty(field) || !table.Columns.Contains(field) || startIndex < 0) return table;
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table.AcceptChanges();//此处提交修改会有问题，后续保存时无法获取多次修改的状态
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table = table.TrimDeleteRows();
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//for (int i = 0; i < table.Rows.Count; i++)
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//{
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// table.Rows[i][field] = (i + 1);
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//}
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//int startUpdateIndex = 0;
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//int endUpdateIndex = 0;
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//if (endIndex < 0)
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//{
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// startUpdateIndex = startIndex;
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// endUpdateIndex = table.Rows.Count - 1;
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//}
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//else
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//{
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// startUpdateIndex = startIndex < endIndex ? startIndex : endIndex;
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// endUpdateIndex = startIndex < endIndex ? endIndex : startIndex;
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//}
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//startUpdateIndex = selectSourceIndex != null && selectSourceIndex.Length > 0 ? startUpdateIndex < selectSourceIndex.Min() ? startUpdateIndex : selectSourceIndex.Min() : startUpdateIndex;
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//endUpdateIndex = selectSourceIndex != null && selectSourceIndex.Length > 0 ? endUpdateIndex > selectSourceIndex.Max() ? endUpdateIndex : selectSourceIndex.Max() : endUpdateIndex;
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//每次拖动排序后都会改变行状态，导致保存时只会保存最后拖动改变的行，改为全部排序。
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int startUpdateIndex = 0;
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int endUpdateIndex = table.Rows.Count - 1;
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for (int i = startUpdateIndex; i <= endUpdateIndex; i++)
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{
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table.Rows[i][field] = i + 1;
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}
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return table;
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}
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/// <summary>
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/// <para>说明：按配置条件排序DataTable</para>
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/// <para>创建人：王一帆</para>
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/// <para>创建日期：2020-07-03 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="table">The table.</param>
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/// <param name="field">The field.</param>
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/// <returns>DataTable.</returns>
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public static DataTable OrderBy(this DataTable table, string field, string UpperFieldName, int RowHandle)
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{
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if (table == null || table.Rows.Count == 0 || string.IsNullOrEmpty(field) || !table.Columns.Contains(field)) return table;
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table.AcceptChanges();
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table = table.TrimDeleteRows();
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if (RowHandle == 0)
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{
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for (int i = RowHandle; i < table.Rows.Count; i++)
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{
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if (string.IsNullOrEmpty(table.Rows[i][UpperFieldName] + "")) continue;
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table.Rows[i + 1][field] = table.Rows[i][UpperFieldName];
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}
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}
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else
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{
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for (int i = RowHandle; i < table.Rows.Count; i++)
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{
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if (string.IsNullOrEmpty(table.Rows[i - 1][UpperFieldName] + "")) continue;
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table.Rows[i][field] = table.Rows[i - 1][UpperFieldName];
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}
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}
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return table;
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}
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/// <summary>
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/// 获取HashTable值
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="dic"></param>
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/// <param name="control"></param>
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/// <param name="key"></param>
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/// <param name="value"></param>
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/// <returns></returns>
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public static bool GetValue<T>(this Dictionary<object, Hashtable> dic, object control, string key, out T value)
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{
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try
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{
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if (dic == null)
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{
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value = default;
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return false;
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}
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if (dic.ContainsKey(control))
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{
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if (dic[control].ContainsKey(key))
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{
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Task<T> task = dic[control][key] as Task<T>;
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value = task.Result;
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task.Dispose();
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return true;
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}
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else
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{
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value = default;
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return false;
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}
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}
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else
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{
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value = default;
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return false;
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine(ex.Message);
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value = default;
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return false;
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}
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}
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/// <summary>
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/// 获得任务
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="cachesDic"></param>
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/// <param name="control"></param>
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/// <param name="key"></param>
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/// <param name="task"></param>
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public static Task<T> GetTask<T>(this Dictionary<object, Hashtable> cachesDic, object control, string key)
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{
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try
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{
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if (cachesDic.ContainsKey(control) && cachesDic[control].ContainsKey(key))
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{
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return (Task<T>)cachesDic[control][key];
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}
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else
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{
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return default;
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}
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}
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catch (Exception ex)
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{
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