⑴collapse（collapse名词形式是什么
⑵collapse名词形式是什么
⑶collapse名词形式是什么？collapse名词形式是:collapsing崩溃的；塌陷的【很希望我的回答会对你有帮助。如有不明白，可以再追问，若满意请采纳，谢谢你，并祝你进步!】
⑷crush和collapse的区别
⑸crushTopressbetweenopposingbodiessoastobreakorinjure.压破，压伤：在两个对向的物质间挤压并使其破碎或受伤Tobreak,pound,rind(stoneorore,forexample)intosmallfragmentsorpowder.压碎：把（石头或矿石等挤压、捣碎或碾成小碎块或粉末collapseTofalldownorinwardsuddenly;cavein.倒塌：突然倒下或塌陷；塌陷Tobreakdownsuddenlyinstrengthorhealthandtherebyceasetofunction:崩溃：力量或健康突然停顿并因此陷于瘫痪：一根管子被夹扁了，也就是被夹的变形了，应该用crushed
⑹css,border-collapse:collapse;//这是什么意思定义了table和table,td,th选择器那如何工作呢
⑺border-collapse:collapse;border-collapse属性是运用在table标签里的，collapse值会让边框合并为一个单一的边框。会忽略border-spacing和empty-cells属性。、border:pxsolidblack;//这个是设置边框属性的，px是边框的宽度，solid是设置边框的线条为实线，black是设置边框的颜色为黑色。table,td,th{border:pxsolidblack;////solid什么意思？}上面的意思同时定义个标签的边框属性为border:pxsolidblack;
⑻collapse可以用被动吗
⑼能加宾语的动词或词组collapse,fall这两个动词都含有“倒塌”之意。collapse通常指房屋等突然倒塌。fall一般指由于失去平衡等原因而倒塌,也可作引申用。可以这样记CO(同时)+lapse(v.消逝)→同时消逝→collapse或者col共同+laps滑，滑走+e→一起滑落→collapse倒塌或者collapse倒塌(col+lapse滑倒=全部滑倒=倒塌)或者collapse倒塌(col+lapse滑倒=全部滑倒=倒塌)或者collocate并置排列(col+loc地方+ate=放在同-地方=排列.
⑽css问题border-collapse:collapse;
⑾背景色还是边框颜色？#边框色为黑背景色要另外设置background属性边框已经是最黑了……你感觉潜的话可能是px造成的视觉效果吧，+宽试试~~~。要换边框颜色的话设置”#“RGB颜色可以了
⑿collapse;是什么意思
⒀collapse英[k??l?ps]美[k??l?ps]vi.崩溃;倒塌;折叠;（尤指工作劳累后坐下;vt.使倒塌;使坍塌;使瓦解;n.垮台;（身体的衰弱;[例句]AsectionoftheBayBridgehadcollapsed海湾大桥有一段垮塌了。[其他]第三人称单数：collapses现在分词：collapsing过去式：collapsed过去分词：collapsed
⒁border-collapse的示例
⒂首先，我们知道border-collapse属性取值如下：border-collapse属性值说明separate默认值，边框分开，不合并collapse边框合并，如果相邻，则共用一个边框HTML代码：????《table》????????《caption》表格标题《/caption》????????《!--表头--》????????《thead》????????????《tr》????????????????《th》表头单元格《/th》????????《th》表头单元格《/th》????????????《/tr》????????《/thead》????????《!--表身--》????????《tbody》????????????《tr》????????????????《td》标准单元格《/td》????????????????《td》标准单元格《/td》????????????《/tr》????????????《tr》????????????????《td》标准单元格《/td》????????????????《td》标准单元格《/td》????????????《/tr》????????《/tbody》????????《!--表脚--》????????《tfoot》????????????《tr》????????????????《td》标准单元格《/td》????????????????《td》标准单元格《/td》????????????《/tr》????????《/tfoot》????《/table》CSS代码：????????table,th,td{border:px?solid?gray;}????????table{border-collapse:collapse;}对比一下不加“border-collapse:collapse;“就可以深刻理解border-collapse属性了。”
⒃TreeView控件添加、修改、删除节点
⒄usingSystem;usingSystem.Data;usingSystem.Configuration;usingSystem.Collections;usingSystem.Web;usingSystem.Web.Security;usingSystem.Web.UI;usingSystem.Web.UI.WebControls;usingSystem.Web.UI.WebControls.WebParts;usingSystem.Web.UI.HtmlControls;usingSystem.Data.SqlClient;publicpartialclassApp_page_NaviLeft:System.Web.UI.Page{protectedvoidPage_Load(objectsender,EventArgse){if(!IsPostBack){stringSchoolID=““;if(Session[“SchoolID“]!=null&&Session[“SchoolID“].ToString()!=““){SchoolID=Session[“SchoolID“].ToString();this.TextBox_SchoolID.Text=SchoolID;}else{ShowMessage(“Session已超时，请重新登录！“);return;}//动态绑定DateListDatelistAdd();//只添加第一层的节点PopulateCategories();}}#region动态绑定DateListprivatevoidDatelistAdd(){stringstrConn=ConfigurationManager.AppSettings[“conn“].ToString();//获取连接数据库的字符串stringstrSQL=“Select*FromSchoolname_IPwhereIsDelete=’’orderbyiddesc“;System.Data.SqlClient.SqlConnectionsqlConn=newSqlConnection(strConn);System.Data.SqlClient.Sqlmandsqlm=newSqlmand(strSQL,sqlConn);try{sqlConn.Open();System.Data.SqlClient.SqlDataReadersqlDR=sqlm.ExecuteReader();if(sqlDR!=null){while(sqlDR.Read()){ListItemLI=newListItem();LI.Text=sqlDR[“schoolname“].ToString();LI.Value=sqlDR[“id“].ToString();this.DropDownList_School.Items.Add(LI);}}sqlDR.Close();this.DropDownList_School.SelectedValue=this.TextBox_SchoolID.Text;}catch{Page.ClientScript.RegisterStartupScript(this.GetType(),““,“《script》window.alert(’获得数据的过程出现了错误！请检查数据库的连接是否正确！’);《/script》“);}finally{sqlConn.Close();}}#endregion#region填充第一层树节点privatevoidPopulateCategories(){TVMenu.Nodes.Clear();SqlmandsqlQuery=newSqlmand(“Select*FromLM_NaviwhereNaviGrade=andschoolid=’“+this.TextBox_SchoolID.Text+“’orderbyNaviID“);DataSetresultSet=RunQuery(sqlQuery);if(resultSet==null){return;}if(resultSet.Tables.Count》){foreach(DataRowrowinresultSet.Tables.Rows){TreeNodeNewNode=newTreeNode(row[“NaviName“].ToString(),row[“NaviCode“].ToString()+“,“+row[“NaviGrade“].ToString()+“,“+row[“NaviChild“].ToString());NewNode.PopulateOnDemand=true;this.TVMenu.Nodes.Add(NewNode);if(TextBox.Text.Trim()==““){NewNode.ExpandAll();}else{NewNode.CollapseAll();}}}resultSet.Dispose();}#endregion#region执行SQL语句并返回数据集///《summary》///函数原型：privateDataSetRunQuery(SqlmandsqlQuery)///函数功能：执行SQL语句并返回数据集///函数参数：SqlmandsqlQuery带SQL语句的Sqlmand///函数返回：执行SQL语句后的数据集///《/summary》///《paramname=“sqlQuery“》带SQL语句的Sqlmand《/param》privateDataSetRunQuery(SqlmandsqlQuery){stringconnectionString=ConfigurationManager.AppSettings[“conn“];SqlConnectionDBConnection=newSqlConnection(connectionString);SqlDataAdapterdbAdapter=newSqlDataAdapter();dbAdapter.Selectmand=sqlQuery;sqlQuery.Connection=DBConnection;DataSetresultsDataSet=newDataSet();try{dbAdapter.Fill(resultsDataSet);}catch{resultsDataSet=null;}returnresultsDataSet;}#endregion#region展开节点时触发的事件protectedvoidTVMenu_TreeNodePopulate(objectsender,TreeNodeEventArgse){//防止重复填充节点if(e.Node.ChildNodes.Count》)return;stringstr=e.Node.Value.Split(’,’);stringstrNaviCode=str.ToString();stringstrGrade=““;boolBoolFlag=e.Node.Checked;strGrade=Convert.ToString((Convert.ToInt(str)+));SqlmandsqlQuery=newSqlmand(“Select*FromLM_Naviwhereschoolid=’“+this.TextBox_SchoolID.Text+“’andNaviCodelike’“+strNaviCode+“%’andNaviGrade=“+strGrade+“orderbyNaviID“);DataSetResultSet=RunQuery(sqlQuery);if(ResultSet==null){return;}if(ResultSet.Tables.Count》){foreach(DataRowrowinResultSet.Tables.Rows){TreeNodeNewNode=newTreeNode(row[“NaviName“].ToString(),row[“NaviCode“].ToString()+“,“+row[“NaviGrade“].ToString()+“,“+row[“NaviChild“].ToString());NewNode.PopulateOnDemand=true;NewNode.Checked=BoolFlag;e.Node.ChildNodes.Add(NewNode);//if((int)row[“ChildFlag“]==)//{//NewNode.Collapse();//}//else//{//NewNode.Expand();//}NewNode.ExpandAll();}}ResultSet.Dispose();}#endregion#region显示信息函数publicvoidShowMessage(stringMessage){Page.ClientScript.RegisterStartupScript(this.GetType(),““,“《script》window.alert(’“+Message+“’);《/script》“);}#endregionprotectedvoidImageButton_open_all_Click(objectsender,ImageClickEventArgse){TextBox.Text=““;PopulateCategories();}protectedvoidImageButton_close_all_Click(objectsender,ImageClickEventArgse){TextBox.Text=““;PopulateCategories();}protectedvoidImageButton_select_Click(objectsender,ImageClickEventArgse){try{//if(TVMenu.CheckedNodes!=null&&TVMenu.CheckedNodes.Count》)//{stringstrWhere=““;for(inti=;i《TVMenu.CheckedNodes.Count;i++){if(TVMenu.CheckedNodes[i].Parent==null||TVMenu.CheckedNodes[i].Parent.Checked==false){stringstr=TVMenu.CheckedNodes[i].Value.Split(’,’);stringstrClassCode=str.ToString();strWhere+=strClassCode+“|“;}}if(strWhere.Length》){strWhere=strWhere.Substring(,strWhere.Length-);}stringstrRSQL=strWhere;stringstrContent=this.TextBox_Content.Text.Trim();stringSchoolID=DropDownList_School.SelectedValue;Page.ClientScript.RegisterStartupScript(this.GetType(),““,“《script》window.open(’FAQslist.aspx?SQL=“+strRSQL+“&Content=“+strContent+“&Page_SchoolID=“+SchoolID+“’,’FAQRight’);《/script》“);//}//else//{//ShowMessage(“请选择节点“);//return;//}}catch{ShowMessage(“配置有误，请检查配置。“);return;}}protectedvoidDropDownList_School_SelectedIndexChanged(objectsender,EventArgse){this.TextBox_SchoolID.Text=this.DropDownList_School.SelectedValue;stringschoolid=this.TextBox_SchoolID.Text;Response.Write(“《script》window.open(’FAQslist.aspx?Page_SchoolID=“+schoolid+“’,’FAQRight’);《/script》“);PopulateCategories();}protectedvoidTVMenu_SelectedNodeChanged(objectsender,EventArgse){try{stringstr=TVMenu.SelectedNode.Value.Split(’,’);stringstrClassCode=str.ToString();stringSchoolID=DropDownList_School.SelectedValue;Page.ClientScript.RegisterStartupScript(this.GetType(),““,“《script》window.open(’FAQslist.aspx?A_SQL=“+strClassCode+“&Page_SchoolID=“+SchoolID+“’,’FAQRight’);《/script》“);}catch{ShowMessage(“配置有误，请检查配置。“);return;}}}
⒅treeview点击父节点展开相应子节点，其他全部收缩
⒆this.treeView.CollapseAll();//折叠所有节点this.treeView.SelectedNode.Expand();//展开子节点
⒇懒加载的treegrid怎么实现expandAll和collapseAll的效果
⒈根据你的描述；全部展开,就返回全部的节点,并且tree.expandAll()全部折叠,就只返回折叠后还显示的节点数据。