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using grsvr6Lib;using System;using System.Collections;using System.Collections.Generic;using System.Data;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Web;
namespace NFine.Code{ public class ServerUtility { /// <summary>
/// 将报表生成的二进制数据响应给 HTPP 请求客户端
/// </summary>
/// <param name="context"> HTPP 请求对象</param>
/// <param name="ExportResult">报表生成的二进制数据</param>
/// <param name="FileName">指定下载(或保存)文件时的默认文件名称</param>
/// <param name="ContentType">响应的ContentType</param>
/// <param name="OpenMode">指定生成的数据打开模式，可选[inline|attachment]，"inline"表示在网页中内联显示，"attachment"表示以附件文件形式下载。如果不指定，由浏览器自动确定打开方式。</param>
public static void ResponseBinary(HttpContext context, IGRBinaryObject ExportResult, string FileName, string ContentType, string OpenMode) { if (ExportResult.DataSize > 0) { string Disposition = "";
if (OpenMode != null && OpenMode.Length > 0) Disposition = OpenMode + "; ";
Disposition += ServerUtility.EncodeAttachmentFileName(context.Request.UserAgent, FileName);
context.Response.ContentType = ContentType; context.Response.AppendHeader("Content-Length", ExportResult.DataSize.ToString()); context.Response.AppendHeader("Content-Disposition", Disposition);
context.Response.ClearContent();
byte[] buffer = new byte[ExportResult.DataSize]; System.Runtime.InteropServices.Marshal.Copy((IntPtr)ExportResult.DataBuf, buffer, 0, ExportResult.DataSize); context.Response.BinaryWrite(buffer);
context.Response.Flush(); } }
/// <summary>
/// 将异常信息文字响应给请求的客户端
/// </summary>
/// <param name="context"></param>
/// <param name="MessageText"></param>
public static void ResponseException(HttpContext context, string MessageText) { context.Response.ContentType = "text/plain"; context.Response.Write(MessageText); }
/// <summary>
/// 为了文件名中的汉字与特殊字符能正确，必须进行分浏览器处理
/// </summary>
/// <param name="BrowserAgent"></param>
/// <param name="RawFileName"></param>
/// <returns></returns>
public static string EncodeAttachmentFileName(string BrowserAgent, string RawFileName) { System.Text.UTF8Encoding UTF8Encoding = new System.Text.UTF8Encoding(); string EncodedFileName = HttpUtility.UrlEncode(RawFileName, UTF8Encoding);
// 如果没有BrowserAgent，则默认使用IE的方式进行编码，因为毕竟IE还是占多数的
string ret = "filename=\"" + EncodedFileName + "\""; if (BrowserAgent != null && BrowserAgent.Length != 0) { BrowserAgent = BrowserAgent.ToLower(); // msie 与 edge 采用默认的方式
if ((BrowserAgent.IndexOf("msie") == -1) && (BrowserAgent.IndexOf("edge") == -1)) { // Chrome浏览器，只能采用MimeUtility编码或ISO编码的中文输出
if (BrowserAgent.IndexOf("applewebkit") != -1) { //EncodedFileName = MimeUtility.encodeText(RawFileName, "UTF8", "B");
System.Text.UTF8Encoding UTF8EncodingBOM = new System.Text.UTF8Encoding(true); EncodedFileName = UTF8EncodingBOM.GetString(UTF8EncodingBOM.GetBytes(RawFileName)); ret = "filename=\"" + EncodedFileName + "\""; } // Safari浏览器，只能采用ISO编码的中文输出
else if (BrowserAgent.IndexOf("safari") != -1) { //28591 iso-8859-1 1252 *
//ret = "filename=\"" + new String(filename.getBytes("UTF-8"), "ISO8859-1") + "\"";
byte[] UTF8Bytes = UTF8Encoding.GetBytes(RawFileName); string ISO8859Text = System.Text.Encoding.GetEncoding(28591).GetString(UTF8Bytes); ret = "filename=\"" + ISO8859Text + "\""; } // Opera浏览器只能采用filename*
// FireFox浏览器，可以使用MimeUtility或filename*或ISO编码的中文输出
else if ((BrowserAgent.IndexOf("opera") != -1) || (BrowserAgent.IndexOf("mozilla") != -1)) { ret = "filename*=UTF-8''" + EncodedFileName; } } }
return ret; }
/// <summary>
/// 根据报表模板中的查询SQL获取报表数据
/// </summary>
//public static string BuildFromSelfSQL(GridppReportServer Report)
//{
// string DataText = "";
// //从 XML 或 JSON 数据包中载入报表数据
// string MasterQuerySQL = Report.QuerySQL;
// string DetailQuerySQL = Report.DetailGrid != null ? Report.DetailGrid.Recordset.QuerySQL : null;
// bool MasterAssigned = (MasterQuerySQL != null && MasterQuerySQL.Length > 0);
// bool DetailAssigned = (DetailQuerySQL != null && DetailQuerySQL.Length > 0);
// if (MasterAssigned || DetailAssigned)
// {
// if (MasterAssigned && DetailAssigned)
// {
// string MasterTableName = Report.XmlTableName;
// if (MasterTableName == null || MasterTableName.Length == 0)
// MasterTableName = "Master";
// string DetailTableName = Report.DetailGrid.Recordset.XmlTableName;
// if (DetailTableName == null || DetailTableName.Length == 0)
// DetailTableName = "Detail";
// ArrayList QueryList = new ArrayList();
// QueryList.Add(new ReportQueryItem(DetailQuerySQL, DetailTableName));
// QueryList.Add(new ReportQueryItem(MasterQuerySQL, MasterTableName));
// DataText = DataTextProvider.Build(QueryList);
// }
// else
// {
// DataText = DataTextProvider.Build(MasterAssigned ? MasterQuerySQL : DetailQuerySQL);
// }
// }
// return DataText;
//}
private struct MatchFieldPairType { public IGRField grField; public int MatchColumnIndex; }
// 将 DataReader 的数据转储到 Grid++Report 的记录集中
public static void FillRecordToReport(IGridppReport Report, IDataReader dr) { MatchFieldPairType[] MatchFieldPairs = new MatchFieldPairType[Math.Min(Report.DetailGrid.Recordset.Fields.Count, dr.FieldCount)];
//根据字段名称与列名称进行匹配，建立DataReader字段与Grid++Report记录集的字段之间的对应关系
int MatchFieldCount = 0; for (int i = 0; i < dr.FieldCount; ++i) { foreach (IGRField fld in Report.DetailGrid.Recordset.Fields) { if (String.Compare(fld.RunningDBField, dr.GetName(i), true) == 0) { MatchFieldPairs[MatchFieldCount].grField = fld; MatchFieldPairs[MatchFieldCount].MatchColumnIndex = i; ++MatchFieldCount; break; } } }
// 将 DataReader 中的每一条记录转储到 Grid++Report 的记录集中去
while (dr.Read()) { Report.DetailGrid.Recordset.Append();
for (int i = 0; i < MatchFieldCount; ++i) { if (!dr.IsDBNull(MatchFieldPairs[i].MatchColumnIndex)) MatchFieldPairs[i].grField.Value = dr.GetValue(MatchFieldPairs[i].MatchColumnIndex); }
Report.DetailGrid.Recordset.Post(); } }
// 将 DataTable 的数据转储到 Grid++Report 的记录集中
public static void FillRecordToReport(IGridppReport Report, DataTable dt) { MatchFieldPairType[] MatchFieldPairs = new MatchFieldPairType[Math.Min(Report.DetailGrid.Recordset.Fields.Count, dt.Columns.Count)];
//根据字段名称与列名称进行匹配，建立DataReader字段与Grid++Report记录集的字段之间的对应关系
int MatchFieldCount = 0; for (int i = 0; i < dt.Columns.Count; ++i) { foreach (IGRField fld in Report.DetailGrid.Recordset.Fields) { if (String.Compare(fld.Name, dt.Columns[i].ColumnName, true) == 0) { MatchFieldPairs[MatchFieldCount].grField = fld; MatchFieldPairs[MatchFieldCount].MatchColumnIndex = i; ++MatchFieldCount; break; } } }
// 将 DataTable 中的每一条记录转储到 Grid++Report 的记录集中去
foreach (DataRow dr in dt.Rows) { Report.DetailGrid.Recordset.Append();
for (int i = 0; i < MatchFieldCount; ++i) { if (!dr.IsNull(MatchFieldPairs[i].MatchColumnIndex)) MatchFieldPairs[i].grField.Value = dr[MatchFieldPairs[i].MatchColumnIndex]; }
Report.DetailGrid.Recordset.Post(); } }
public static uint RGBToOleColor(byte r, byte g, byte b) { return ((uint)b) * 256 * 256 + ((uint)g) * 256 + r; }
public static uint ColorToOleColor(System.Drawing.Color val) { return RGBToOleColor(val.R, val.G, val.B); }
//判断当前运行进程是不是64位程序
public static bool Is64bitProcess() { //IsWow64Process
//也可以直接用Environment.Is64BitProcess，不过需要DotNet4.0或以上版本。
return (IntPtr.Size == 8); }
//生成数据源连接串，根据当前运行环境与配置参数进行实际调整
public static string BuildOLEDBConnectionString() { //Grid++Report的64位程序通过OLE DB连接Access与32位程序使用完全不同的数据驱动程序，
//此数据驱动程序(AccessDatabaseEngine_X64.exe)没有跟随Windows系统自动安装，需要从
//微软网站下载并安装, 下载地址：https://www.microsoft.com/zh-CN/download/details.aspx?id=13255
//如果直接不能安装，要先将Ofiice卸载后再进行安装，驱动程序安装后，在重新安装Office。
return (Is64bitProcess() ? "Provider = Microsoft.ACE.OLEDB.12.0;" : "Provider=Microsoft.Jet.OLEDB.4.0;") + "User ID=Admin;Data Source=" + @"C:\Grid++Report 6\Samples\Data\NorthWind.mdb"; } }
public class ReportQueryItem { public string QuerySQL; public string RecordsetName;
public ReportQueryItem(string AQuerySQL, string ARecordsetName) { QuerySQL = AQuerySQL; RecordsetName = ARecordsetName; } };}
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