GridViewHelper.cs类源码-GridView命名空间-代码大全-开发者工具网

1-HttpHelper
- HttpCookieHelper.cs
- HttpHelper.cs
2-数据库
- DbHelperMySQL.cs
- DbHelperOleDb.cs
- DbHelperOra.cs
- DbHelperSQL.cs
- DbHelperSQLite.cs
- DbHelperSQLP.cs
- OracleHelper.cs
- SQLHelper.cs
3-百度相关组件
- BaiduMapHelper.cs
BarCode
- BarCodeToHTML.cs
Chart
- Assistant.cs
- OWCChart11.cs
Config
- ConfigHelper-sufei.cs
- ConfigHelper.cs
Control
- BindDataControl.cs
Convert
- ConvertHelper.cs
- StringPlus.cs
Cookie_Session_Cache
- CacheHelper.cs
- CookieHelper.cs
- DataCache.cs
- SessionHelper.cs
- SessionHelper2.cs
CSV
- CsvHelper.cs
Date
- CNDate.cs
DEncrypt
- DEncrypt.cs
- DESEncrypt.cs
- Encrypt.cs
- HashEncode.cs
- MySecurity.cs
- RSACryption.cs
Download_Up
- DownLoadHelper.cs
- FileDown.cs
- FileUp.cs
- UpLoadFiles.cs
Encoding
- FileEncoding.cs
Excel
- DataToExcel.cs
- ExcelHelper.cs
- ExportExcel.cs
- GridViewExport.cs
File
- DirFileHelper.cs
- FileOperateHelper.cs
- INIFileHelper.cs
FormatDate
- TimeHelper.cs
FTP
- FTPClient.cs
- FTPHelper.cs
- FTPOperater.cs
GridView
- GridViewHelper.cs
Image
- ImageClass.cs
- ImageDown.cs
- ImageUpload.cs
- PicDeal.cs
Input
- InputHelper.cs
Internet_Url
- AdslHelper.cs
- IpHelper.cs
- NetHelper.cs
- UrlOper.cs
IP
- IPHelper.cs
JS
- ExeJsHelper.cs
- JsHelper.cs
JsAlert
- MessageBox.cs
- ShowMessage.cs
Json
- ConvertJson.cs
- JsonHelper.cs
- SerializerJsonHelper.cs
Mail
- ConnectCommand.cs
- ConnectResponse.cs
- DeleCommand.cs
- ListCommand.cs
- ListResponse.cs
- MailHeaders.cs
- MailHelper.cs
- MailMessageEx.cs
- MailPoper.cs
- MailSender.cs
- NoopCommand.cs
- PassCommand.cs
- Pop3Client.cs
- Pop3Command.cs
- Pop3Commands.cs
- Pop3Exception.cs
- Pop3ListItem.cs
- Pop3Response.cs
- Pop3Responses.cs
- Pop3State.cs
- QuitCommand.cs
- RetrCommand.cs
- RetrResponse.cs
- RsetCommand.cs
- SmtpServerHelper.cs
- Stat.cs
- StatCommand.cs
- StatResponse.cs
- TopCommand.cs
- UserCommand.cs
Mime
- MediaTypes.cs
- MimeEntity.cs
- MimeHeaders.cs
- MimeReader.cs
- QuotedPrintableEncoding.cs
Page
- BasePage.cs
- HTMLHelper.cs
- HttpProc.cs
- JavaScriptPlus.cs
- PageHelper.cs
- Utility.cs
- WebSitePathHelper.cs
PinYin
- EcanConvertToCh.cs
- PinYin.cs
Properties
- AssemblyInfo.cs
Random
- BaseRandom.cs
- RandomHelper.cs
Regex
- RegexHelper.cs
ResourceManager
- AppMessage.cs
- ResourceManager.cs
- ResourceManagerWrapper.cs
- Resources.cs
Rmb
- RMB.cs
SegList
- SegList.cs
seo
- SeoHelper.cs
Serialize
- Serialize.cs
- SerializeHelper.cs
Sound
- MediaHandler.cs
Sqlhelper
- SqlHelper.cs
String
- QueryString.cs
- StringHelper.cs
System
- SysHelper.cs
Validate_Tool
- FormulaExpress.cs
- PageValidate.cs
- Tools.cs
- ValidateImg.cs
Video
- VideoConvert.cs
Web
- FilterHelper.cs
- WebHelper.cs
XML
- XmlHelper.cs
- XMLProcess.cs
Yzm
- YZMHelper.cs
Zip
- SharpZip.cs
百度相关组件
- BaiduMapHelper.cs
系统Api
- API.cs
- Mac.cs
- ResourcesApi.cs
- Win32Private.cs
- Win32Public.cs

你现在查看的是GridViewHelper.cs类的源码

/// <summary>
/// 类说明：Assistant
/// 编 码 人：苏飞
/// 联系方式：361983679  
/// 更新网站：http://www.sufeinet.com/thread-655-1-1.html
/// </summary>
using System;
using System.Collections.Generic;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Collections;
using System.Reflection;

namespace DotNet.Utilities
{
    public class GridViewHelper
    {
        #region 私有方法
        /// <summary>
        /// 截取内容长度
        /// </summary>
        /// <param name="o_Str">原字符串</param>
        /// <param name="len">截取长度</param>
        /// <returns>截取后字符串</returns>
        private static string GetStrPartly(string o_Str, int len)
        {
            if (len == 0)
            {
                return o_Str;
            }
            else
            {
                if (o_Str.Length > len)
                {
                    return o_Str.Substring(0, len) + "..";
                }
                else
                {
                    return o_Str;
                }
            }
        }

/// <summary>
        /// 获取单元格内容
        /// </summary>
        /// <param name="cell">TableCell</param>
        /// <returns>内容</returns>
        private static string GetCellText(TableCell cell)
        {
            string text = cell.Text;
            if (!string.IsNullOrEmpty(text))
            {
                return text;
            }
            foreach (Control control in cell.Controls)
            {
                if (control != null && control is IButtonControl)
                {
                    IButtonControl btn = control as IButtonControl;
                    text = btn.Text.Replace("\r\n", "").Trim();
                    break;
                }
                if (control != null && control is ITextControl)
                {
                    LiteralControl lc = control as LiteralControl;
                    if (lc != null)
                    {
                        continue;
                    }
                    ITextControl l = control as ITextControl;
                    text = l.Text.Replace("\r\n", "").Trim();
                    break;
                }
            }
            return text;
        }

/// <summary>
        /// 设置单元格内容
        /// </summary>
        /// <param name="cell">TableCell</param>
        /// <param name="maxLen">最大长度</param>
        private static void SetCellText(TableCell cell, int maxLen)
        {
            string text = cell.Text;
            if (!string.IsNullOrEmpty(text))
            {
                cell.Text = GetStrPartly(text, maxLen);
            }
            foreach (Control control in cell.Controls)
            {
                if (control != null && control is IButtonControl)
                {
                    IButtonControl btn = control as IButtonControl;
                    text = btn.Text.Replace("\r\n", "").Trim();
                    btn.Text = GetStrPartly(text, maxLen);
                    break;
                }
                if (control != null && control is ITextControl)
                {
                    LiteralControl lc = control as LiteralControl;
                    if (lc != null)
                    {
                        continue;
                    }
                    ITextControl l = control as ITextControl;
                    text = l.Text.Replace("\r\n", "").Trim();
                    if (l is DataBoundLiteralControl)
                    {
                        cell.Text = GetStrPartly(text, maxLen);
                        break;
                    }
                    else
                    {
                        l.Text = GetStrPartly(text, maxLen);
                        break;
                    }
                }
            }
        }
        #endregion

#region 公有方法
        /// <summary>
        /// 从GridView的数据生成DataTable
        /// </summary>
        /// <param name="gv">GridView对象</param>
        public static DataTable GridView2DataTable(GridView gv)
        {
            DataTable table = new DataTable();
            int rowIndex = 0;
            List<string> cols = new List<string>();
            if (!gv.ShowHeader && gv.Columns.Count == 0)
            {
                return table;
            }
            GridViewRow headerRow = gv.HeaderRow;
            int columnCount = headerRow.Cells.Count;
            for (int i = 0; i < columnCount; i++)
            {
                string text = GetCellText(headerRow.Cells[i]);
                cols.Add(text);
            }
            foreach (GridViewRow r in gv.Rows)
            {
                if (r.RowType == DataControlRowType.DataRow)
                {
                    DataRow row = table.NewRow();
                    int j = 0;
                    for (int i = 0; i < columnCount; i++)
                    {
                        string text = GetCellText(r.Cells[i]);
                        if (!String.IsNullOrEmpty(text))
                        {
                            if (rowIndex == 0)
                            {
                                string columnName = cols[i];
                                if (String.IsNullOrEmpty(columnName))
                                {
                                    continue;
                                }
                                if (table.Columns.Contains(columnName))
                                {
                                    continue;
                                }
                                DataColumn dc = table.Columns.Add();
                                dc.ColumnName = columnName;
                                dc.DataType = typeof(string);
                            }
                            row[j] = text;
                            j++;
                        }
                    }
                    rowIndex++;
                    table.Rows.Add(row);
                }
            }
            return table;
        }

/// <summary>
        /// 将集合类转换成DataTable
        /// </summary>
        /// <param name="list">集合</param>
        public static DataTable ToDataTable(IList list)
        {
            DataTable result = new DataTable();
            if (list.Count > 0)
            {
                PropertyInfo[] propertys = list[0].GetType().GetProperties();
                foreach (PropertyInfo pi in propertys)
                {
                    result.Columns.Add(pi.Name, pi.PropertyType);
                }

for (int i = 0; i < list.Count; i++)
                {
                    ArrayList tempList = new ArrayList();
                    foreach (PropertyInfo pi in propertys)
                    {
                        object obj = pi.GetValue(list[i], null);
                        tempList.Add(obj);
                    }
                    object[] array = tempList.ToArray();
                    result.LoadDataRow(array, true);
                }
            }
            return result;
        }

/// <summary>
        /// 将泛型集合类转换成DataTable
        /// </summary>
        /// <typeparam name="T">集合项类型</typeparam>
        /// <param name="list">集合</param>
        /// <param name="propertyName">需要返回的列的列名</param>
        /// <returns>数据集(表)</returns>
        public static DataTable ToDataTable<T>(IList<T> list, params string[] propertyName)
        {
            List<string> propertyNameList = new List<string>();
            if (propertyName != null) propertyNameList.AddRange(propertyName);

DataTable result = new DataTable();
            if (list.Count > 0)
            {
                PropertyInfo[] propertys = list[0].GetType().GetProperties();
                foreach (PropertyInfo pi in propertys)
                {
                    if (propertyNameList.Count == 0)
                    {
                        result.Columns.Add(pi.Name, pi.PropertyType);
                    }
                    else
                    {
                        if (propertyNameList.Contains(pi.Name)) result.Columns.Add(pi.Name, pi.PropertyType);
                    }
                }

for (int i = 0; i < list.Count; i++)
                {
                    ArrayList tempList = new ArrayList();
                    foreach (PropertyInfo pi in propertys)
                    {
                        if (propertyNameList.Count == 0)
                        {
                            object obj = pi.GetValue(list[i], null);
                            tempList.Add(obj);
                        }
                        else
                        {
                            if (propertyNameList.Contains(pi.Name))
                            {
                                object obj = pi.GetValue(list[i], null);
                                tempList.Add(obj);
                            }
                        }
                    }
                    object[] array = tempList.ToArray();
                    result.LoadDataRow(array, true);
                }
            }
            return result;
        }
        #endregion
    }
}