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Rent intersection Query

Source: Internet
Author: User
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Web interface

<title></title>
<script language= "JavaScript" >
function Checkall (Ckall, Ckname) {
var cks = Document.getelementsbyname (ckname);
for (var i = 0; i < cks.length; i++) {
cks[i].checked = ckall.checked;
}
}
</script>
<body>
<form id= "Form1" runat= "Server" >
<div>

Area: <input id= "Ckareaall" type= "checkbox" onclick= "Checkall (This, ' Ckarea ')"/> Select all <br/>
<asp:repeater id= "Repeater1" runat= "Server" onitemcommand= "Repeater1_itemcommand" >
<ItemTemplate>
<input id= "ckarea_<%# eval (" code ")%>" name= "Ckarea" type= "checkbox" Value= "<%# Eval (" code ")%>"/> <span><%# Eval ("Name")%></span>
</ItemTemplate>
</asp:Repeater>
<br/>
<br/>
Lease type: <asp:checkbox id= "Ckrenttypeall" runat= "Server" text= "Select All"/>
<br/>
<asp:checkboxlist id= "CheckBoxList1" runat= "server" repeatdirection= "horizontal" repeatlayout= "Flow" >
</asp:CheckBoxList>
<br/>
<br/>
House type: <input id= "Ckhousetypeall" type= "checkbox" onclick= "Checkall (This, ' Ckhousetype ')"/> Select all <br/>
<asp:literal id= "Literal1" runat= "Server" ></asp:Literal>
<br/>
Keywords: <asp:textbox id= "TXT" runat= "server" ></asp:TextBox>
<br/>
<br/>
<asp:button id= "Btnfind" runat= "server" text= "search" onclick= "Btnfind_click"/>

<br/>
<br/>
<asp:repeater id= "Repeater2" runat= "Server" >
<HeaderTemplate>
<table width= "100%" border= "1" >
</HeaderTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
<ItemTemplate>
<tr>
<td><%# Eval ("KeyWord")%></td>
<td><%# Eval ("area")%></td>
<td><%# Eval ("Squaremeter")%></td>
<td><%# Eval ("Rent")%></td>
<td><%# Eval ("Renttype")%></td>
<td><%# Eval ("Housetype")%></td>
</tr>
</ItemTemplate>
</asp:Repeater>

</div>
</form>

Code interface

Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Web;
Using System.Web.UI;
Using System.Web.UI.WebControls;

public partial class _default:system.web.ui.page
{
Private Mydbdatacontext _context = new Mydbdatacontext ();
#region = = Fill check box = =
private void Fillarea ()
{
Preparing data
list<itemdata> list = new list<itemdata> ();
list<string> temp = _context.house.select (p = = P.area). Distinct (). ToList ();
foreach (string s in temp)
{
ItemData data = new ItemData ();
Data. Code = s;
Data. Name = s;
List. ADD (data);
}
Interface display
Repeater1.datasource = list;
Repeater1.databind ();
}
private void Fillrenttype ()
{
Preparing data
list<itemdata> list = new list<itemdata> ();
list<string> temp = _context.house.select (p = = p.renttype). Distinct (). ToList ();
foreach (string s in temp)
{
ItemData data = new ItemData ();
Data. Code = s;
Data. Name = s;
List. ADD (data);
}
Interface display
Checkboxlist1.datasource = list;
Checkboxlist1.datatextfield = "Name";
Checkboxlist1.datavaluefield = "Code";
Checkboxlist1.databind ();
}
private void Fillhousetype ()
{
Preparing data
list<string> temp = _context.house.select (p = = p.housetype). Distinct (). ToList ();

Interface display
foreach (string s in temp)
{
Literal1.text + = "<input type= ' checkbox ' id=" + S + "name= ' ckhousetype ' value= '" + S + "' >" + S;
}


}
#endregion
protected void Page_Load (object sender, EventArgs e)
{
if (! IsPostBack)
{
Fillarea ();
Fillrenttype ();
Fillhousetype ();
}
}

protected void Btnfind_click (object sender, EventArgs e)
{
#region = = Combo Query = =
//Selection query
var query1 = _con Text. House.asqueryable ();
if (request["Ckarea"]! = null)
{
String strarea = request["Ckarea"];
string[] areas = Strarea. Split (', ');
Query1 = Query1. Where (p = = areas. Contains (P.area));
}

//Lease type query
var query2 = _context.house.asqueryable ();
list<string> renttypes = new list<string> ();
foreach (ListItem li in Checkboxlist1.items)
{
if (li. Selected = = True)
{
Renttypes.add (li. Value);
}
}
if (Renttypes.count > 0)
{
Query2 = Query2. Where (p = renttypes.contains (P.renttype));
}
//housing type query
var query3 = _context.house.asqueryable ();
if (request["Ckhousetype"]! = null)
{
Strin G Strhousetype = request["Ckhousetype"];
string[] Housetypes = Strhousetype. Split (', ');
Query3 = Query3. Where (p = housetypes.contains (P.housetype));
}

Keyword Query
var query4 = _context.house.asqueryable ();
if (txt. Text.trim (). Length > 0)
{
Query4 = Query4. Where (p = p.keyword.contains (txt. Text));
}

Integration
var query = Query1. Intersect (Query2). Intersect (Query3). Intersect (QUERY4);

Repeater2.datasource = query;
Repeater2.databind ();
#endregion
}

Rent intersection Query

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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