using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using NewLife.Reflection;
using NewLife.Web;
using System.Collections;
#if NET4
using System.Linq;
#else
using NewLife.Linq;
#endif
[assembly: WebResource("XControl.View.GridViewExtender.js", "text/javascript")]
namespace XControl
{
/// <summary>GridView扩展控件</summary>
[Description("GridView扩展控件")]
[ToolboxData("<{0}:GridViewExtender runat=server></{0}:GridViewExtender>")]
//[TargetControlType(typeof(GridView))]
[Designer(typeof(GridViewExtenderDesigner))]
public class GridViewExtender : ExtenderControl<GridView>
{
#region 属性
/// <summary>选中项背景颜色</summary>
[Description("选中项背景颜色"),
DefaultValue(typeof(Color), ""),
TypeConverter(typeof(WebColorConverter))]
public Color SelectedRowBackColor
{
get { return GetPropertyValue<Color>("SelectedRowBackColor", Color.Empty); }
set { SetPropertyValue<Color>("SelectedRowBackColor", value); }
}
/// <summary>请求字符串中作为键值的参数</summary>
[Description("请求字符串中作为键值的参数")]
[DefaultValue("ID")]
public String RequestKeyName
{
get { return GetPropertyValue<String>("RequestKeyName", "ID"); }
set { SetPropertyValue<String>("RequestKeyName", value); }
}
/// <summary>客户端单击行时执行脚本，{rowindex}代表索引，{datakey}代表键值，{cell0}代表单元格值</summary>
[Description("客户端单击行时执行脚本，{rowindex}代表索引，{datakey}代表键值，{cell0}代表单元格值")]
public String OnRowClientClick
{
get { return GetPropertyValue<String>("OnRowClientClick", String.Empty); }
set { SetPropertyValue<String>("OnRowClientClick", value); }
}
/// <summary>客户端双击行时执行脚本，{rowindex}代表索引，{datakey}代表键值，{cell0}代表单元格值</summary>
[Description("客户端双击行时执行脚本，{rowindex}代表索引，{datakey}代表键值，{cell0}代表单元格值")]
public String OnRowDoubleClientClick
{
get { return GetPropertyValue<String>("OnRowDoubleClientClick", String.Empty); }
set { SetPropertyValue<String>("OnRowDoubleClientClick", value); }
}
///// <summary>是否启用多选</summary>
//[Description("是否启用多选")]
//[DefaultValue(false)]
//public Boolean EnableMultiSelect
//{
// get { return GetPropertyValue<Boolean>("EnableMultiSelect", false); }
// set { SetPropertyValue<Boolean>("EnableMultiSelect", value); }
//}
/// <summary>选择框位置，需要自己创建CheckBox模版列，这里只是指定而已</summary>
[Description("选择框位置，需要自己创建CheckBox模版列，这里只是指定而已")]
[DefaultValue(0)]
public Int32 CheckBoxIndex
{
get { return GetPropertyValue<Int32>("CheckBoxIndex", 0); }
set { SetPropertyValue<Int32>("CheckBoxIndex", value); }
}
/// <summary>双击行时点击的列文本,一般在前端表现为A标签的内容</summary>
[Description("双击行时点击的列文本,一般在前端表现为A标签的内容")]
[DefaultValue("编辑")]
public string DblClickRowFieldText
{
get
{
return GetPropertyValue<string>("DblClickRowFieldText", "编辑");
}
set
{
SetPropertyValue<string>("DblClickRowFieldText", value);
}
}
#endregion 属性
#region 扩展属性
private Int32 _TotalCount;
/// <summary>总记录数</summary>
[Browsable(false)]
public Int32 TotalCount
{
get
{
return _TotalCount;
//return PropertyInfoX.GetValue<DataSourceSelectArguments>(TargetControl, "SelectArguments").TotalRowCount;
}
private set { _TotalCount = value; }
}
/// <summary>当前行数</summary>
public Int32 RowCount
{
get
{
var ed = DataSource as IEnumerable;
if (ed == null) return 0;
var collection = ed as ICollection;
if (collection != null) return collection.Count;
Int32 n = 0;
foreach (var item in ed) n++;
return n;
}
}
private Object _DataSource;
/// <summary>ObjectDataSource返回的数据源</summary>
[Browsable(false)]
public Object DataSource { get { return _DataSource; } private set { _DataSource = value; } }
/// <summary>被选择行的索引</summary>
[Browsable(false)]
public Int32[] SelectedIndexes
{
get
{
GridView gv = TargetControl;
if (gv == null || gv.Rows == null || gv.Rows.Count < 1 || CheckBoxIndex >= gv.Columns.Count) return null;
Int32 index = CheckBoxIndex;
List<Int32> list = new List<Int32>();
foreach (GridViewRow row in gv.Rows)
{
if (row.RowType != DataControlRowType.DataRow) continue;
TableCell cell = row.Cells[index];
if (cell == null || cell.Controls.Count < 1) continue;
CheckBox cb = ControlHelper.FindControl<CheckBox>(cell, null);
if (cb == null) continue;
if (cb.Checked) list.Add(row.RowIndex);
}
return list.Count > 0 ? list.ToArray() : null;
}
}
/// <summary>被选择行的索引</summary>
[Browsable(false)]
public String SelectedIndexesString
{
get
{
Int32[] indexes = SelectedIndexes;
if (indexes == null || indexes.Length < 1) return null;
StringBuilder sb = new StringBuilder();
foreach (Int32 item in indexes)
{
if (sb.Length > 0) sb.Append(",");
sb.Append(item);
}
return sb.ToString();
}
}
/// <summary>被选择行的键值</summary>
[Browsable(false)]
public Object[] SelectedValues
{
get
{
Int32[] indexes = SelectedIndexes;
if (indexes == null || indexes.Length < 1) return null;
GridView gv = TargetControl;
List<Object> list = new List<object>();
foreach (Int32 item in indexes)
{
list.Add(gv.DataKeys[item].Value);
}
return list.Count > 0 ? list.ToArray() : null;
}
}
/// <summary>被选择行的整型键值，因为整型最常用</summary>
[Browsable(false)]
public Int32[] SelectedIntValues
{
get
{
Int32[] indexes = SelectedIndexes;
if (indexes == null || indexes.Length < 1) return null;
GridView gv = TargetControl;
List<Int32> list = new List<Int32>();
foreach (Int32 item in indexes)
{
list.Add((Int32)gv.DataKeys[item].Value);
}
return list.Count > 0 ? list.ToArray() : null;
}
}
/// <summary>被选择行的键值</summary>
[Browsable(false)]
public String SelectedValuesString
{
get
{
Object[] values = SelectedValues;
if (values == null || values.Length < 1) return null;
StringBuilder sb = new StringBuilder();
foreach (Object item in values)
{
if (sb.Length > 0) sb.Append(",");
sb.Append(item);
}
return sb.ToString();
}
}
#endregion 扩展属性
#region 方法
/// <summary>已重载。</summary>
/// <param name="e"></param>
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
if (!Enabled) return;
GridView gv = TargetControl;
if (gv == null) return;
// 挂接ObjectDataSource的事件
if (!String.IsNullOrEmpty(gv.DataSourceID))
{
ObjectDataSource ds = FindControl(gv.DataSourceID) as ObjectDataSource;
if (ds != null) FixObjectDataSourceOrder(ds);
}
// 挂接分页模版
if (!DesignMode && gv.AllowPaging && gv.PagerTemplate == null)
{
gv.PagerTemplate = new CompiledTemplateBuilder(BuilderPagerTemplate);
if (!DesignMode && Page.EnableEventValidation) Page.EnableEventValidation = false;
}
}
/// <summary>已重载。</summary>
/// <param name="e"></param>
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
if (!Enabled) return;
GridView gv = TargetControl;
if (gv == null || gv.Rows.Count <= 0 || !gv.Visible) return;
RenderOnClick(gv);
//if (EnableMultiSelect) CreateMutliSelect(TargetControl);
if (!DesignMode) SetSelectAll(gv);
}
#endregion 方法
#region 点击
private void RenderOnClick(GridView gv)
{
string editLinkBoxText = DblClickRowFieldText;
// 找到编辑列所在列序号
int editColumIndex = -1;
for (int i = 0; i < gv.Columns.Count; i++)
{
DataControlField item = gv.Columns[i];
if (item.HeaderText == editLinkBoxText /*&& item is LinkBoxField*/)
{
editColumIndex = i;
break;
}
}
string highlight = null, clickElement = null;
if (SelectedRowBackColor != Color.Empty)
{
highlight = string.Format("e.Highlight('{0}')", new WebColorConverter().ConvertToString(SelectedRowBackColor));
}
if (editColumIndex >= 0) // 双击行变点击编辑
{
clickElement = string.Format(@"
e.ClickElement('a',function(i){{
return i.className.toLowerCase().indexOf('dblclickrow') > -1 || i.innerHTML==='{0}';
}})
", Helper.JsStringEscape(editLinkBoxText)); // 这里的'a'表示是html标签a,因为编辑列字段 LinkBoxField 输出的是a标签
}
string EventMapOptions = Helper.JsObjectString(false, (k, v) => v != null,
"click", highlight,
"dblclick", clickElement
);
if (EventMapOptions != "{}")
{
Page.ClientScript.RegisterClientScriptResource(typeof(GridViewExtender), "XControl.View.GridViewExtender.js");
Page.ClientScript.RegisterStartupScript(typeof(GridViewExtender), "InitGridView" + gv.ClientID,
Helper.JsMinSimple(!XControlConfig.Debug, @"
;(function(e){{
e.ExtendDataRow('{0}', {{
EventMap:{1}
}}
);
}}(GridViewExtender));
", gv.ClientID, EventMapOptions), true);
}
foreach (GridViewRow item in gv.Rows)
{
if (item.RowType != DataControlRowType.DataRow) continue;
String onclick = OnRowClientClick;
String ondblclick = OnRowDoubleClientClick;
if (SelectedRowBackColor != Color.Empty) // 选中当前请求参数中指定的行,参数名由RequestKeyName属性指定,参数值是GridView相关ods的DataKeys指定的主键值
{
if (HttpContext.Current != null && HttpContext.Current.Request != null)
{
Object keyValue = null;
if (gv.DataKeys != null && gv.DataKeys.Count > item.RowIndex)
keyValue = gv.DataKeys[item.RowIndex].Value;
if (keyValue != null && String.Equals(keyValue.ToString(), HttpContext.Current.Request[RequestKeyName]))
{
item.BackColor = SelectedRowBackColor;
}
}
}
Format(item, "onclick", onclick);
Format(item, "ondblclick", ondblclick);
}
}
/// <summary>将指定的字符串作为javascript中使用的字符串内容返回,没有js字符串声明两边的双引号</summary>
/// <param name="i"></param>
/// <returns></returns>
[Obsolete("使用XControl.Helper.JsStringEscape")]
public static string JSStringEscape(string i)
{
return (i + "").Replace(@"\", @"\\").Replace("'", @"\'").Replace("\"", @"\""").Replace("\r", @"\r").Replace("\n", @"\n");
}
static Regex reMinJs = new Regex(@"\s*(?:\r\n|\r|\n)+\s*", RegexOptions.Compiled);
/// <summary>将指定的javascript代码做简单压缩,去除换行和缩进</summary>
/// <param name="i"></param>
/// <returns></returns>
[Obsolete("使用XControl.Helper.JsMinSimple")]
public static string SimpleMinJs(string i)
{
return reMinJs.Replace(i + "", "");
}
/// <summary>将指定字符串作为html标签属性中可使用的字符串返回</summary>
/// <param name="i"></param>
/// <returns></returns>
[Obsolete("使用XControl.Helper.HTMLPropertyEscape")]
public static string HTMLPropertyEscape(string i)
{
return (i + "").Replace("\"", """)
//.Replace("&", "&") 现代浏览器基本都会对此容错,不合理的命名实体会忽略
.Replace("\r", " ").Replace("\n", " ");
}
private void Format(GridViewRow row, string att, string value)
{
if (row == null || String.IsNullOrEmpty(value)) return;
GridView gv = row.NamingContainer as GridView;
value = value.Replace("{rowindex}", row.RowIndex.ToString());
Object keyValue = null;
if (gv.DataKeys != null && gv.DataKeys.Count > row.RowIndex)
keyValue = gv.DataKeys[row.RowIndex].Value;
if (keyValue != null)
value = value.Replace("{datakey}", keyValue.ToString());
else
value = value.Replace("{datakey}", null);
for (int i = 0; i < row.Cells.Count; i++)
{
value = value.Replace("{cell" + i + "}", row.Cells[i].Text);
}
if (String.IsNullOrEmpty(value)) return;
if (!value.EndsWith(";")) value = value + ";";
row.Attributes[att] = value;//+ row.Attributes[att];
}
#endregion 点击
#region 分页模版
static String _pagerTemplate;
/// <summary>分页模版</summary>
public static String PagerTemplateString
{
get
{
if (!String.IsNullOrEmpty(_pagerTemplate)) return _pagerTemplate;
StringBuilder sb = new StringBuilder();
sb.AppendLine("共<asp:Label runat=\"server\" Text='<%# NewLife.Reflection.PropertyInfoX.GetValue<DataSourceSelectArguments>(Container.NamingContainer, \"SelectArguments\").TotalRowCount.ToString(\"n0\") %>'></asp:Label>条");
sb.AppendLine("每页<asp:Label runat=\"server\" Text=\"<%# ((GridView)Container.NamingContainer).PageSize %>\"></asp:Label>条");
sb.Append("当前第<asp:Label runat=\"server\" Text=\"<%# ((GridView)Container.NamingContainer).PageIndex + 1 %>\"></asp:Label>页/共");
sb.AppendLine("<asp:Label runat=\"server\" Text=\"<%# ((GridView)Container.NamingContainer).PageCount %>\"></asp:Label>页");
sb.AppendLine("<asp:LinkButton runat=\"server\" CommandArgument=\"First\" CommandName=\"Page\" Visible='<%#((GridView)Container.NamingContainer).PageIndex != 0 %>'>首页</asp:LinkButton>");
sb.AppendLine("<asp:LinkButton runat=\"server\" CommandArgument=\"Prev\" CommandName=\"Page\" Visible='<%# ((GridView)Container.NamingContainer).PageIndex != 0 %>'>上一页</asp:LinkButton>");
sb.AppendLine("<asp:LinkButton runat=\"server\" CommandArgument=\"Next\" CommandName=\"Page\" Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'>下一页</asp:LinkButton>");
sb.AppendLine("<asp:LinkButton runat=\"server\" CommandArgument=\"Last\" CommandName=\"Page\" Visible='<%# ((GridView)Container.NamingContainer).PageIndex != ((GridView)Container.NamingContainer).PageCount - 1 %>'>尾页</asp:LinkButton>");
sb.AppendLine("转到第<input type=\"textbox\" style=\"width: 40px; text-align: right;\" value='<%# ((GridView)Container.Parent.Parent).PageIndex + 1 %>' />页");
sb.AppendLine("<input type=\"button\" value=\"GO\" onclick=\"javascript:__doPostBack('<%# ((GridView)Container.NamingContainer).UniqueID %>','Page$'+previousSibling.previousSibling.value);return false;\" />");
_pagerTemplate = sb.ToString();
return _pagerTemplate;
}
}
private void BuilderPagerTemplate(Control ctl)
{
ParserHelper page = new ParserHelper(ctl);
page.Add("共").AddLabel("lbTotalCount", delegate { return TotalCount; }, "n0").Add("条")
.Add(" 每页").AddLabel("lbPageSize", delegate { return TargetControl.PageSize; }).Add("条")
.Add(" 当前第").AddLabel("lbCurrentPage", delegate { return TargetControl.PageIndex + 1; })
.Add("页/共").AddLabel("lbPageCount", delegate { return TargetControl.PageCount; }).Add("页")
.Add(" ")
.AddLinkButton("btnFirst", "首页", "First", delegate { return TargetControl.PageIndex != 0; })
.AddLinkButton("btnPrev", "上一页", "Prev", delegate { return TargetControl.PageIndex != 0; })
.AddLinkButton("btnNext", "下一页", "Next", delegate { return TargetControl.PageIndex != TargetControl.PageCount - 1; })
.AddLinkButton("btnLast", "尾页", "Last", delegate { return TargetControl.PageIndex != TargetControl.PageCount - 1; })
.Add("转到第").AddTextBox("txtNewPageIndex", delegate { return TargetControl.PageIndex + 1; }).Add("页")
.AddButton("btnGo", "GO", delegate { return String.Format("javascript:__doPostBack('{0}','Page$'+previousSibling.previousSibling.value);return false;", TargetControl.UniqueID); });
WebControl wc = ctl as WebControl;
if (wc != null && String.IsNullOrEmpty(wc.CssClass)) wc.CssClass = "page";
}
private class ParserHelper
{
IParserAccessor parser;
Page page;
public ParserHelper(Control ctl) { parser = ctl; page = ctl.Page; }
private void Init(Control ctl)
{
if (page != null)
{
ctl.TemplateControl = page;
ctl.ApplyStyleSheetSkin(page);
}
}
public ParserHelper Add(String text)
{
parser.AddParsedSubObject(new LiteralControl(text));
return this;
}
public ParserHelper AddLabel(String id, Func<Int32> handler)
{
return AddLabel(id, handler, null);
}
public ParserHelper AddLabel(String id, Func<Int32> handler, String format)
{
Label lb = new Label();
//lb.ID = id;
Init(lb);
if (handler != null)
lb.DataBinding += delegate(Object sender, EventArgs e)
{
(sender as Label).Text = String.IsNullOrEmpty(format) ? handler().ToString() : handler().ToString(format);
};
parser.AddParsedSubObject(lb);
return this;
}
public ParserHelper AddLinkButton(String id, String text, String arg, Func<Boolean> handler)
{
LinkButton btn = new LinkButton();
//btn.ID = id;
Init(btn);
btn.Text = text;
btn.CommandName = "Page";
btn.CommandArgument = arg;
if (handler != null)
{
btn.DataBinding += delegate(Object sender, EventArgs e)
{
(sender as LinkButton).Visible = handler();
// 呈现时在后面加一个空格
GridView gv = (parser as Control).NamingContainer.NamingContainer as GridView;
if (gv != null) gv.DataBound += delegate(Object sender2, EventArgs e2)
{
LinkButton btn2 = sender as LinkButton;
if (btn2.Visible)
{
LiteralControl lc = new LiteralControl();
lc.Text = " ";
btn2.Parent.Controls.AddAt(btn2.Parent.Controls.IndexOf(btn2) + 1, lc);
}
};
};
}
parser.AddParsedSubObject(btn);
return this;
}
public ParserHelper AddTextBox(String id, Func<Int32> handler)
{
TextBox box = new TextBox();
//box.ID = id;
Init(box);
box.Width = 40;
box.Style[HtmlTextWriterStyle.TextAlign] = "right";
if (handler != null)
box.DataBinding += delegate(Object sender, EventArgs e)
{
(sender as TextBox).Text = handler().ToString();
};
parser.AddParsedSubObject(box);
return this;
}
public ParserHelper AddButton(String id, String text, Func<String> handler)
{
Button btn = new Button();
//btn.ID = id;
Init(btn);
btn.Text = text;
btn.UseSubmitBehavior = false;
if (handler != null)
btn.DataBinding += delegate(Object sender, EventArgs e)
{
(sender as Button).OnClientClick = handler();
};
parser.AddParsedSubObject(btn);
return this;
}
}
#endregion 分页模版
#region 多选
private void SetSelectAll(GridView gv)
{
if (gv == null || gv.HeaderRow == null || gv.HeaderRow.Cells.Count <= CheckBoxIndex) return;
Int32 index = CheckBoxIndex;
TableCell cellHeader = gv.HeaderRow.Cells[index];
if (cellHeader == null) return;
// 列出该列的CheckBox
List<CheckBox> list = new List<CheckBox>();
foreach (GridViewRow row in gv.Rows)
{
if (row.RowType != DataControlRowType.DataRow) continue;
TableCell cell = row.Cells[index];
if (cell == null || cell.Controls.Count < 1) continue;
CheckBox cb = ControlHelper.FindControl<CheckBox>(cell, null);
if (cb == null) return;
list.Add(cb);
}
if (list.Count < 1) return;
CheckBox header = ControlHelper.FindControl<CheckBox>(cellHeader, null);
if (header == null)
{
header = new CheckBox();
header.ToolTip = "全选/取消";
cellHeader.Controls.Add(header);
}
if (header == null) return;
// 构造赋值语句
StringBuilder sb = new StringBuilder();
foreach (CheckBox cb in list)
{
sb.AppendFormat("{0}.checked=", cb.UniqueID);
}
header.Attributes["onclick"] = String.Format("{1}{0}.checked;", header.UniqueID, sb.ToString());
}
//void gv_RowCreated(object sender, GridViewRowEventArgs e)
//{
// //if (EnableMultiSelect) CreateMutliSelect(e.Row);
//}
//void CreateMutliSelect(GridView gv)
//{
// //if (!EnableMultiSelect) return;
// foreach (GridViewRow row in gv.Rows)
// {
// CreateMutliSelect(row);
// }
//}
//void CreateMutliSelect(GridViewRow row)
//{
// TableCell cell = null;
// CheckBox cb = null;
// switch (row.RowType)
// {
// case DataControlRowType.DataRow:
// cell = new TableCell();
// cb = new CheckBox();
// cb.ID = "s";
// cb.ToolTip = TargetControl.DataKeys[row.RowIndex].Value.ToString();
// cell.Controls.Add(cb);
// row.Cells.AddAt(0, cell);
// break;
// case DataControlRowType.Footer:
// case DataControlRowType.Header:
// cell = new TableCell();
// if (row.RowType == DataControlRowType.Header) cell.Width = 40;
// cb = new CheckBox();
// cb.ID = "s";
// cb.ToolTip = "全选";
// cell.Controls.Add(cb);
// row.Cells.AddAt(0, cell);
// break;
// default:
// cell = new TableCell();
// row.Cells.AddAt(0, cell);
// break;
// }
//}
#endregion 多选
#region ObjectDataSource默认排序
void FixObjectDataSourceOrder(ObjectDataSource ods)
{
if (ods == null) return;
// 如果有排序参数，并且排序参数有默认值，并且传过来的为空，则处理
if (!String.IsNullOrEmpty(ods.SortParameterName))
{
Parameter p = ods.SelectParameters[ods.SortParameterName];
if (p != null && !String.IsNullOrEmpty(p.DefaultValue))
ods.Selecting += new ObjectDataSourceSelectingEventHandler(ods_Selecting);
}
ods.Selected += new ObjectDataSourceStatusEventHandler(ods_Selected);
}
void ods_Selecting(object sender, ObjectDataSourceSelectingEventArgs e)
{
if (sender == null) return;
// 查询总记录数的就不要插手了
if (e.ExecutingSelectCount) return;
var fix = FieldInfoX.Create(sender.GetType(), "_owner");
if (fix == null) return;
ObjectDataSource ods = fix.GetValue(sender) as ObjectDataSource;
if (ods == null) return;
// 如果有排序参数，并且排序参数有默认值，并且传过来的为空，则处理
if (!String.IsNullOrEmpty(ods.SortParameterName))
{
Parameter p = ods.SelectParameters[ods.SortParameterName];
if (p != null && !String.IsNullOrEmpty(p.DefaultValue))
{
// Selecting事件之后，ObjectDataSource会用e.Arguments.SortExpression覆盖e.InputParameters[ods.SortParameterName]
// 而e.InputParameters[ods.SortParameterName]里面有默认值，也就是ObjectDataSource只认外部的e.Arguments.SortExpression
if (String.IsNullOrEmpty(e.Arguments.SortExpression))
{
e.Arguments.SortExpression = p.DefaultValue;
e.InputParameters[ods.SortParameterName] = p.DefaultValue;
}
}
}
}
void ods_Selected(object sender, ObjectDataSourceStatusEventArgs e)
{
var data = e.ReturnValue;
if (data is Int32)
TotalCount = (Int32)data;
else
DataSource = data;
}
#endregion
}
}
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