75 lines
2.4 KiB
C#
75 lines
2.4 KiB
C#
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using NPOI.SS.UserModel;
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using NPOI.XSSF.UserModel;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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using System.Web;
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namespace FineUIPro.Web
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{
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public class CommonPrint
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{
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/// <summary>
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/// 数据分页
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/// </summary>
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/// <returns></returns>
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public static DataTable GetPageToDataTable(DataTable dt, int PageIndex, int PageSize)
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{
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if (PageIndex == 0)
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return dt;//0页代表每页数据，直接返回
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if (dt == null)
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{
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DataTable table = new DataTable();
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return table;
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}
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DataTable newdt = dt.Copy();
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newdt.Clear();//copy dt的框架
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int rowbegin = (PageIndex - 1) * PageSize;
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int rowend = PageIndex * PageSize;//要展示的数据条数
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if (rowbegin >= dt.Rows.Count)
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return newdt;//源数据记录数小于等于要显示的记录，直接返回dt
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if (rowend > dt.Rows.Count)
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rowend = dt.Rows.Count;
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for (int i = rowbegin; i <= rowend - 1; i++)
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{
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DataRow newdr = newdt.NewRow();
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DataRow dr = dt.Rows[i];
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foreach (DataColumn column in dt.Columns)
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{
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newdr[column.ColumnName] = dr[column.ColumnName];
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}
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newdt.Rows.Add(newdr);
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}
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return newdt;
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}
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/// <summary>
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/// 创建样式
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/// </summary>
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/// <returns></returns>
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public static ICellStyle SetExcelStyle(XSSFWorkbook wb, BorderStyle Bottom, BorderStyle Left, BorderStyle Right, BorderStyle Top, VerticalAlignment VerAig, HorizontalAlignment HorAig, double FontSize, bool WrapText = true, bool Bold = false, string FontName = "宋体")
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{
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ICellStyle style = wb.CreateCellStyle();
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style.BorderBottom = Bottom;
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style.BorderLeft = Left;
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style.BorderRight = Right;
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style.BorderTop = Top;
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style.VerticalAlignment = VerAig;
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style.Alignment = HorAig;
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IFont font = wb.CreateFont();
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font.FontHeightInPoints = FontSize;
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font.IsBold = Bold;
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font.FontName = FontName;
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style.SetFont(font);
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style.WrapText = WrapText;
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return style;
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}
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}
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}
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