PDA

View Full Version : [CLOSED] GridPanel: getting selectedrows (CheckboxSelectionModel) and loop through them from code behind (C#)



tanky65
Jan 22, 2013, 11:11 PM
Please, consider the following example
I use CheckBoxSelectionModel to select rows

I use a DirectEvent in a button to pass via extraparams the selected rows, in the following way:




<ext:Button ID="btnAction" runat="server" Text="Accept" Icon="Accept">
<DirectEvents>
<Click OnEvent="SubmitGrids">
<ExtraParams>
<ext:Parameter Name="Testata" Value="Ext.encode(#{GridPanel1}.getRowsValues({selectedOn ly : true}))"
Mode="Raw" />
</ExtraParams>
</Click>
</DirectEvents>
</ext:Button>



If I use selectedOnly : true I get no rows in code behind. On the contrary I get the rows when I use selectedOnly : false

Can You give please a tip ?




<%@ Page Language="C#" CodeFile="Default.aspx.cs" Inherits="Default" %>

<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<!DOCTYPE html>
<html>
<head id="Head1" runat="server">
<title>RowExpander with FormPanel Detail - Ext.NET Examples</title>
<link href="/resources/css/examples.css" rel="stylesheet" />
<ext:ResourcePlaceHolder ID="ResourcePlaceHolder1" runat="server" Mode="Script" />
<style>
.white-footer .x-toolbar-footer
{
background-color: white !important;
}
</style>
<script>
var template = '<span style="color:{0};">{1}</span>';

var change = function (value) {
return Ext.String.format(template, (value > 0) ? "green" : "red", value);
};

var pctChange = function (value) {
return Ext.String.format(template, (value > 0) ? "green" : "red", value + "%");
};
</script>
</head>
<body>
<form id="Form1" runat="server">
<ext:ResourceManager ID="ResourceManager1" runat="server" />
<h1>
RowExpander Plugin with FormPanel Detail</h1>
<ext:GridPanel ID="GridPanel1" runat="server" Title="Expander Rows with control"
Collapsible="true" AnimCollapse="true" Icon="Table" Width="600" Height="350">
<Store>
<ext:Store ID="Store1" runat="server" IgnoreExtraFields="false" PageSize="10">
<Model>
<ext:Model ID="Model1" runat="server">
<Fields>
<ext:ModelField Name="company" />
<ext:ModelField Name="price" Type="Float" />
<ext:ModelField Name="change" Type="Float" />
<ext:ModelField Name="pctChange" Type="Float" />
<ext:ModelField Name="lastChange" Type="Date" DateFormat="M/d hh:mmtt" />
<ext:ModelField Name="industry" />
</Fields>
</ext:Model>
</Model>
</ext:Store>
</Store>
<SelectionModel>
<ext:CheckboxSelectionModel ID="CheckboxSelectionModel1" AllowDeselect="true" runat="server"
Mode="Multi" />
</SelectionModel>
<ColumnModel ID="ColumnModel1" runat="server">
<Columns>
<ext:Column ID="Column1" runat="server" Text="Company" DataIndex="company" Flex="1" />
<ext:Column ID="Column2" runat="server" Text="Price" DataIndex="price">
<Renderer Format="UsMoney" />
</ext:Column>
<ext:Column ID="Column3" runat="server" Text="Change" DataIndex="change">
<Renderer Fn="change" />
</ext:Column>
<ext:Column ID="Column4" runat="server" Text="Change" DataIndex="pctChange">
<Renderer Fn="pctChange" />
</ext:Column>
<ext:DateColumn ID="DateColumn1" runat="server" Text="Last Updated" DataIndex="lastChange"
Format="yyyy/MM/dd" />
</Columns>
</ColumnModel>
<Plugins>
<ext:RowExpander ID="RowExpander1" runat="server" SingleExpand="false">
<Component>
<ext:FormPanel ID="FormPanel1" runat="server" BodyPadding="6" Height="180" Border="false"
DefaultAnchor="-5" Cls="white-footer">
<Items>
<ext:TextField ID="TextField1" runat="server" Name="company" FieldLabel="Company" />
<ext:NumberField ID="NumberField1" runat="server" Name="price" FieldLabel="Price" />
<ext:NumberField ID="NumberField2" runat="server" Name="change" FieldLabel="Change" />
<ext:NumberField ID="NumberField3" runat="server" Name="pctChange" FieldLabel="% Change" />
<ext:DateField ID="DateField1" runat="server" Name="lastChange" FieldLabel="Last Updated"
Format="yyyy/MM/dd" />
</Items>
<Listeners>
<AfterRender Handler="this.getForm().loadRecord(this.record);" />
</Listeners>
<Buttons>
<ext:Button ID="Button1" runat="server" Text="Save" Icon="Disk">
<Listeners>
<Click Handler="var grid = this.up('grid'), form = this.up('form');
grid.getRowExpander().collapseRow(grid.store.index Of(form.record));
form.getForm().updateRecord(form.record);" />
</Listeners>
</ext:Button>
<ext:Button ID="Button2" runat="server" Text="Cancel" Icon="Decline">
<Listeners>
<Click Handler="var grid = this.up('grid'), form = this.up('form');
grid.getRowExpander().collapseRow(grid.store.index Of(form.record));" />
</Listeners>
</ext:Button>
</Buttons>
</ext:FormPanel>
</Component>
</ext:RowExpander>
</Plugins>
<TopBar>
<ext:Toolbar ID="Toolbar3" runat="server">
<Items>
<ext:Button ID="btnAction" runat="server" Text="Accept" Icon="Accept">
<DirectEvents>
<Click OnEvent="SubmitGrids">
<ExtraParams>
<ext:Parameter Name="Testata" Value="Ext.encode(#{GridPanel1}.getRowsValues({selectedOn ly : true}))"
Mode="Raw" />
</ExtraParams>
</Click>
</DirectEvents>
</ext:Button>
</Items>
</ext:Toolbar>
</TopBar>
<BottomBar>
<ext:PagingToolbar ID="PagingToolbar1" runat="server" />
</BottomBar>
</ext:GridPanel>
</form>
</body>
</html>




with following behind code



using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Ext.Net;
using System.Xml;

public partial class Default : MainInherit
{
protected void Page_Load(object sender, EventArgs e)
{
if (X.IsAjaxRequest)
{
//We do not need to DataBind on an DirectEvent
return;
}

this.Store1.DataSource = new object[]
{
new object[] { "3m Co", 71.72, 0.02, 0.03, "9/1 12:00am", "Manufacturing"},
new object[] { "Alcoa Inc", 29.01, 0.42, 1.47, "9/1 12:00am", "Manufacturing"},
new object[] { "Altria Group Inc", 83.81, 0.28, 0.34, "9/1 12:00am", "Manufacturing"},
new object[] { "American Express Company", 52.55, 0.01, 0.02, "9/1 12:00am", "Finance"},
new object[] { "American International Group, Inc.", 64.13, 0.31, 0.49, "9/1 12:00am", "Services"},
new object[] { "AT&T Inc.", 31.61, -0.48, -1.54, "9/1 12:00am", "Services"},
new object[] { "Boeing Co.", 75.43, 0.53, 0.71, "9/1 12:00am", "Manufacturing"},
new object[] { "Caterpillar Inc.", 67.27, 0.92, 1.39, "9/1 12:00am", "Services"},
new object[] { "Citigroup, Inc.", 49.37, 0.02, 0.04, "9/1 12:00am", "Finance"},
new object[] { "E.I. du Pont de Nemours and Company", 40.48, 0.51, 1.28, "9/1 12:00am", "Manufacturing"},
new object[] { "Exxon Mobil Corp", 68.1, -0.43, -0.64, "9/1 12:00am", "Manufacturing"},
new object[] { "General Electric Company", 34.14, -0.08, -0.23, "9/1 12:00am", "Manufacturing"},
new object[] { "General Motors Corporation", 30.27, 1.09, 3.74, "9/1 12:00am", "Automotive"},
new object[] { "Hewlett-Packard Co.", 36.53, -0.03, -0.08, "9/1 12:00am", "Computer"},
new object[] { "Honeywell Intl Inc", 38.77, 0.05, 0.13, "9/1 12:00am", "Manufacturing"},
new object[] { "Intel Corporation", 19.88, 0.31, 1.58, "9/1 12:00am", "Computer"},
new object[] { "International Business Machines", 81.41, 0.44, 0.54, "9/1 12:00am", "Computer"},
new object[] { "Johnson & Johnson", 64.72, 0.06, 0.09, "9/1 12:00am", "Medical"},
new object[] { "JP Morgan & Chase & Co", 45.73, 0.07, 0.15, "9/1 12:00am", "Finance"},
new object[] { "McDonald\"s Corporation", 36.76, 0.86, 2.40, "9/1 12:00am", "Food"},
new object[] { "Merck & Co., Inc.", 40.96, 0.41, 1.01, "9/1 12:00am", "Medical"},
new object[] { "Microsoft Corporation", 25.84, 0.14, 0.54, "9/1 12:00am", "Computer"},
new object[] { "Pfizer Inc", 27.96, 0.4, 1.45, "9/1 12:00am", "Medical"},
new object[] { "The Coca-Cola Company", 45.07, 0.26, 0.58, "9/1 12:00am", "Food"},
new object[] { "The Home Depot, Inc.", 34.64, 0.35, 1.02, "9/1 12:00am", "Retail"},
new object[] { "The Procter & Gamble Company", 61.91, 0.01, 0.02, "9/1 12:00am", "Manufacturing"},
new object[] { "United Technologies Corporation", 63.26, 0.55, 0.88, "9/1 12:00am", "Computer"},
new object[] { "Verizon Communications", 35.57, 0.39, 1.11, "9/1 12:00am", "Services"},
new object[] { "Wal-Mart Stores, Inc.", 45.45, 0.73, 1.63, "9/1 12:00am", "Retail"}
};

this.Store1.DataBind();
}

protected void SubmitGrids(object sender, DirectEventArgs e)
{
string grid1Json = e.ExtraParams["Testata"];

// no data when selectedOnly : true is used

XmlNode grid1Xml = JSON.DeserializeXmlNode("{records:{record:" + grid1Json + "}}");

Dictionary<string, string>[] grid1Data = JSON.Deserialize<Dictionary<string, string>[]>(grid1Json);

RowSelectionModel sm = GridPanel1.GetSelectionModel() as RowSelectionModel;

int i = 0;
foreach (Dictionary<string, string> row in grid1Data)
{
bool selected = false;
foreach (SelectedRow srow in sm.SelectedRows)
{
int s = srow.RowIndex;
if (s == i)
{
selected = true;
break;
}
}
if (selected)
{

}
i++;
}
}
}

Baidaly
Jan 22, 2013, 11:50 PM
Hello!

You have to declare IDProperty:



<Model>
<ext:Model ID="Model1" runat="server" IDProperty="company">
<Fields>
<ext:ModelField Name="company" />
<ext:ModelField Name="price" Type="Float" />
<ext:ModelField Name="change" Type="Float" />
<ext:ModelField Name="pctChange" Type="Float" />
<ext:ModelField Name="lastChange" Type="Date" DateFormat="M/d hh:mmtt" />
<ext:ModelField Name="industry" />
</Fields>
</ext:Model>
</Model>


Also, change calling of getRowsValues methods:


<ext:Parameter Name="Testata" Value="Ext.encode(#{GridPanel1}.getRowsValues({ selectedOnly: true }))" Mode="Raw" />

tanky65
Jan 23, 2013, 7:37 AM
many thanks!!