Questions on UI for ASP.NET AJAX Forum

1 answer

310 views

Grid - Clicking on the Header Line to Sort

Hi All,

I've a very simple page with a RadGrid, on clicking the header to sort, I get the error :-

Unable to cast object of type 'Telerik.Web.UI.RadGrid' to type 'Telerik.Web.UI.GridTableView'.

This only happened after upgrading the DLLs to 2016.2.607.40 from 2014.1.403.40
Going back to the old DLL fixes the issue.

Serverside I populate a DataTable and then use Datasource/Databind.

<telerik:RadGrid ID="dtgParameter" runat="server" CssClass="dataGridStyle" Width="99%" GridLines="Both" Height="100px" AllowSorting="True" AllowMultiRowSelection="False" AllowPaging="False" AutoGenerateColumns="False" ShowFooter="false" ShowHeader="true">

<HeaderStyle CssClass="dataGridHeader" />

<ItemStyle CssClass="dataGridItemStyleNormal" />

<AlternatingItemStyle CssClass="dataGridItemStyleAlt" />

<SortingSettings EnableSkinSortStyles="false" />

<ClientSettings EnablePostBackOnRowClick="false">

<Selecting AllowRowSelect="true" UseClientSelectColumnOnly="true" />

<Scrolling AllowScroll="True" UseStaticHeaders="True" SaveScrollPosition="True" />

</ClientSettings>

<MasterTableView Name="Parameter" DataKeyNames="ParameterId" ShowHeader="true" AutoGenerateColumns="False" HierarchyLoadMode="ServerOnDemand" width="99%">

<Columns>

<telerik:GridBoundColumn HeaderStyle-ForeColor="White" DataField="ParameterId" HeaderStyle-Font-Bold="True" SortExpression="ParameterId" HeaderStyle-Width="0%" HeaderText="" visible="false"/>

<telerik:GridBoundColumn HeaderStyle-ForeColor="White" DataField="Name" HeaderStyle-Font-Bold="True" SortExpression="Name" HeaderStyle-Width="20%" HeaderText="Name" />

<telerik:GridBoundColumn HeaderStyle-ForeColor="White" DataField="Comments" HeaderStyle-Font-Bold="True" SortExpression="Comments" HeaderStyle-Width="80%" HeaderText="Comments" />

</Columns>

</MasterTableView>

</telerik:RadGrid>

Grid

answered on 28 Jul 2016

15 answers

607 views

transfer items between 2 radlistbox

i have 2 listbox wich are updated when user select an item from radgrid, so if radgrid item change radlistbox are updated.

but i have the arrows on the listbox to allow user transfer from one to another radlistbox and when user do that it must run a db update command.

the problem is that i cant get a way to fetch wich iem is selected from radlistbox by user. i try with items count but i get always zero

protected void RadListBox1_Load(object sender, EventArgs e)

{

if (!IsPostBack)

{

RadListBox1.Visible = false;

RadListBox2.Visible = false;

Label1.Visible = false;

Label2.Visible = false;

}

else

{

RadListBox1.Visible = true;

RadListBox2.Visible = true;

Label1.Visible = true;

Label2.Visible = true;

RadListBox1.ClientIDMode = ClientIDMode.Static;

RadListBox2.ClientIDMode = ClientIDMode.Static;

}

{

if (e.Items.Count > 1 && e.SourceListBox.ClientID == "RadListBox1")

{

lblTransfer.Text = "Transfer All to right";

command //BLL.Patrocinadores.Adicionar1PatrocinadorAoAtleta(id_atleta, id_patrocinador);

Updatelistbox();

}

else if (e.Items.Count == 1 && e.SourceListBox.ClientID == "RadListBox1")

{

lblTransfer.Text = "Transfer one Item to right";

}

else if (e.Items.Count > 1 && e.SourceListBox.ClientID == "RadListBox2")

{

lblTransfer.Text = "Transfer All to left";

}

else if (e.Items.Count == 1 && e.SourceListBox.ClientID == "RadListBox2")

{

lblTransfer.Text = "Transfer one Item to left";

}

ListBox

answered on 27 Jul 2016

0 answers

89 views

Change tooltip on hover

I see a lot of example, but nothing works for my simple example. I am trying something like that

function OnSeriesHover_EconomyRelationshipsLevel2(sender,args) {
if (args.category == "30") {
args.series.tooltip.format = "Click for Details";

sender.series.tooltip.format = "Click for Details";
}
}

Thank you

Chart (HTML5)

asked on 27 Jul 2016

1 answer

138 views

Binding issue

Hi,

I have the following client code and JSON output. When I run it up I get no errors but I get an empty combo box. I know that the JSON is being generated and sent to the client datasource.

Have I missed something obvious?

<telerik:RadClientDataSource runat="server" ID="RadClientDataSource1">

<DataSource>

<WebServiceDataSourceSettings BaseUrl="http://localhost:65247/aTest/Data.asmx/">

<Select Url="GetData" DataType="JSON" />

</WebServiceDataSourceSettings>

</DataSource>

<Schema DataName="data">

<Model>

<telerik:ClientDataSourceModelField FieldName="Id" DataType="Number" />

<telerik:ClientDataSourceModelField FieldName="Nme" DataType="String" />

<telerik:ClientDataSourceModelField FieldName="Ena" DataType="Boolean" />

</Model>

</Schema>

</telerik:RadClientDataSource>

<telerik:RadComboBox ID="RadComboBox1" runat="server" ClientDataSourceID="RadClientDataSource1" EnableLoadOnDemand="true"

DataTextField="Nme" DataValueField="Id">

</telerik:RadComboBox>

Sample JSON below - I have checked the whole file with a checker and it all seems OK...

{"data":[{"Id":97,"Nme":"sample 1","Ena":true},{"Id":182,"Nme":"sample 2","Ena":true}]}

ClientDataSource

answered on 27 Jul 2016

1 answer

111 views

Disabled ComboBox Look and Feel Changed after Telerik Upgrade Q2.2016

Hi,
I have upgraded Telerik from Q2.2010 to Q2.2016 Recently. After upgrade the background color of the Disabled combo box is changed.
Previously, the BG Color was White and now the Color is Transparent.

How will I change the BG Color of the Disabled Combo Box.

Regards,

Nisanth

ComboBox

answered on 27 Jul 2016

4 answers

484 views

Use div instead of span when applying styles

Hello,

Is there any way to convert the <span> tag's that the Editor uses when you apply a style from the Apply CSS dropdown into <div> tags? My styles all work quite well as div's but span's seem to break them all. I'd like it if the Editor could just apply the style as a DIV instead of a SPAN. Is this possible? I looked at content filters but that seems to require the user to go back and forth between views in order to take effect.

Thank you in advance!

Editor

answered on 27 Jul 2016

3 answers

76 views

Updating Telerik Controsl

I have updated the dll and I want to know if I need to replace each control on the page. We have upgraded .Net version 3.5 to 4.6 and the Telerik controls will not work with the successful update of the dll's.

So do I need to replace each control with new controls?

General Discussions

answered on 27 Jul 2016

1 answer

87 views

Export to excel quit working using Excel 2010

Hi,

Export to excel feature from Grid was working with Excel 2010 but lately it is not working. I am getting blank excel with no data. It works just fine with Excel 2013,2016. Please advise ASAP as it is production issue.

Many Thanks.

Grid