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[Solved] IPad safari - problems with hidecolums

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Grid

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9 Answers, 1 is accepted

answered on 08 Sep 2011, 11:32 AM

SamplePage.zip

Hi Svetlana,

I checked the show/hideColumn functions from the client-side API of the grid and they are working correctly on my side. The issue might be related to some additional client-side code or setting that you have in your application. Note that some of the client-side settings for RadGrid (e.g. context menu, resizing) are not supported yet on mobile devices.
For your reference I am attaching a sample page demonstrating showing and hiding of columns in the grid, that works on iPad.

Greetings,
Marin
the Telerik team

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answered on 14 Sep 2011, 04:05 PM

Hello Svetlana,

The link that you provided indeed does not work on iPad. Which means that probably there is some difference between the two pages. Do you use the exact same page that I sent you and do you have any other settings in the code behind? I see that the grid is not bound to any data unlike the original page. Other reason might be in the way the application is hosted and the settings on the server. You should check whether the client-side handlers for the buttons are actually fired and the code there is executed. Also do you have any other pages with client settings for the grid (e.g. row selection) that work correctly on iPad? I will appreciate if you could post an exact copy of the problematic page (both markup and code behind) so I can have a look at it.

All the best,
Marin
the Telerik team

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answered on 15 Sep 2011, 06:59 AM

Hello Marin!
I added to page the part of code for lines grid.
(I don't use LINQ) .
I checked client-side handlers for the buttons.Handlers are actually fired and the code there is executed.

I post the problematic page ( aspx and aspx.cs)

Regards
Sveta

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default7.aspx.cs" Inherits="Default7" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head id="Head1" runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<div style="margin-top: 50px; margin-left: 25px;">

<telerik:RadCodeBlock ID="RadCodeBlock1" runat="server">

<script type="text/javascript">

function myfunction()

{

var grid = $find('<%= RadGrid1.ClientID %>');

grid.get_masterTableView().hideColumn(3);

}

function myfunction2()

{

var grid = $find('<%= RadGrid1.ClientID %>');

grid.get_masterTableView().showColumn(3);

}

</script>

</telerik:RadCodeBlock>

<br />

<asp:Button ID="Button1" Text="Hide" runat="server" OnClientClick="myfunction(); return false;" />

<br />

=================================

<br />

<asp:Button ID="Button2" Text="Show" runat="server" OnClientClick="myfunction2(); return false;" />

<br />

<telerik:RadAjaxLoadingPanel runat="server" ID="oRadAjaxLoadingPanel" Skin="Vista">

</telerik:RadAjaxLoadingPanel>

<telerik:RadAjaxManager runat="server" ID="radAjax">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="RadGrid1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGrid1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<telerik:RadGrid ID="RadGrid1" Skin="Vista" runat="server"

Width="600px"

AllowPaging="true" AutoGenerateColumns="false">

<HeaderStyle Height="50px" />

<MasterTableView>

<Columns>

<telerik:GridBoundColumn DataField="CustomerID" UniqueName="111111" HeaderText="111111">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="CompanyName" UniqueName="222222" HeaderText="222222">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="ContactName" UniqueName="333333" HeaderText="333333">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="ContactTitle" UniqueName="444444" HeaderText="444444">

</telerik:GridBoundColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

</div>

</form>

</body>

</html>

using System;

using System.Collections.Generic;

//using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Data;

public partial class Default7 : System.Web.UI.Page

{

protected override void OnInit(EventArgs e)

{

base.OnInit(e);

RadGrid1.NeedDataSource += new Telerik.Web.UI.GridNeedDataSourceEventHandler(RadGrid1_NeedDataSource);

}

void RadGrid1_NeedDataSource(object sender, Telerik.Web.UI.GridNeedDataSourceEventArgs e)

{

DataTable dt =new DataTable ();

dt.Columns.Add("CustomerID");

dt.Columns.Add("CompanyName");

dt.Columns.Add("ContactName");

dt.Columns.Add("ContactTitle");

DataRow dr =dt.NewRow ();

dr["CustomerID"] = "1111";

dr["CompanyName"] = "2222";

dr["ContactName"] = "3333";

dr["ContactTitle"] = "4444";

dt.Rows.Add(dr);

dr = dt.NewRow();

dr["CustomerID"] = "5555";

dr["CompanyName"] = "12345";

dr["ContactName"] = "7777";

dr["ContactTitle"] = "3353535";

dt.Rows.Add(dr);

dr = dt.NewRow();

dr["CustomerID"]= "aaaaa";

dr["CompanyName"] = "bbbb";

dr["ContactName"] = "ccccc";

dr["ContactTitle"] = "ddddd";

dt.Rows.Add(dr);

RadGrid1.DataSource =dt;

//RadGrid1.DataSource = Enumerable.Range(1, 10).Select(i => new

//{

// CustomerID = "CustomerID" + i,

// CompanyName = "CompanyName" + i,

// ContactName = "ContactName" + i,

// ContactTitle = "ContactTitle" + i

//});

}