Questions on UI for ASP.NET AJAX Forum

1 answer

114 views

Scheduler - Timeline - Group by resource - vertical - misalignment

Hi,

Just started digging in to using the RadScheduler.

I am using Timeline view, GroupBy resource, and GroupingDirection Vertical.

There is a misalignment on the groupings. Two issues I see...

1) The row lines for the resource do not align with the appointment horizontal lines

2) Some appointments look to align with the incorrect resource. Appointment aaa-137 uses resource 137, but the block spans both 136 and 137 and it in fact looks to be assigned to 136.

How can I fix this?

Scheduler

answered on 05 Feb 2024

2 answers

112 views

Easy scrolling in chart

I displayed a lot of charts which contains too many data. So I define XAxis.MaxValue and/or XAxis.MinValue at the beginning. User can use zooming and panning function if needed. But sometimes it is not clear that some part of chart is not visible and how many values are hidden. If I understand well then "Data Navigation" can be used only for date axis, but it is not true in most of my cases.

My idea is to display below chart "Range Slider" and simply show left and right boundary of the chart. At the beginning it will be enough just to display the position (after events drag/zoom). Later I want implement that user can change the zoom and position of chart by using the slider, but I am not sure if it is possible to modify chart by client methods.

Did anybody try to implement something like that or is there any similar functionality which I didn't noticed?

Thank you,

Petr

Chart (HTML5)

Slider

answered on 02 Feb 2024

1 answer

154 views

Avatar - binary image?

Based on the documentation I've seen, the Avatar control is looking for a url for the image. Is there a way to display a binary image from a sql datasource instead?

Avatar

BinaryImage

answered on 02 Feb 2024

2 answers

232 views

TabStrip Not working in firefox and chrome

Hi,

I am using Rad Tabstrip in my code, which is working fine with internet explorer but not working with firefox or chrome.
My firefox version is v3.0.8 where as my google chrome version is v1.0.154.53.
Please find below the code I am using and let me know the solution as most of my users use firefox.

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="MemberPages_Default" %>
<%@ 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 runat="server">
    <link type="text/css" rel=Stylesheet href=MemberProps.css />
</head>

<body>
    <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server" />
        <div style="left: 0px; width: 1024px; position: absolute; top: 60px; height: 708px">
            <telerik:RadTabStrip ID="RadTabStrip1" runat="server" Skin="Black" MultiPageID="RadMultiPage1"
                SelectedIndex="0" CssClass="tabStrip">
                <Tabs>
                    <telerik:RadTab Text="Details">
                    </telerik:RadTab>
                    <telerik:RadTab Text="Education">
                    </telerik:RadTab>
                    <telerik:RadTab Text="Skills">
                    </telerik:RadTab>
                </Tabs>
            </telerik:RadTabStrip>
            <telerik:RadMultiPage ID="RadMultiPage1" runat="server" SelectedIndex="0" CssClass="multiPage">
                <telerik:RadPageView ID="RadPageView1" runat="server">
                    <ul>
                        <li><label>Name:</label> John Smith</li>
                        <li><label>Birthday:</label> October 20th 1976</li>
                        <li><label>Marital Status:</label> Single</li>
                    </ul>
                </telerik:RadPageView>
                <telerik:RadPageView ID="RadPageView2" runat="server" CssClass="pageViewEducation">
                    <p>
                        BSc (Hons) Computer Science MIT, Boston MA September 1994 - July 1998
                    </p>
                    <p>
                        Courses taken:
                    </p>
                    <ul>
                        <li><label>Computer Architecture:</label> [A+]</li>
                        <li><label>Programming:</label> [A]</li>
                        <li><label>Mathematics for Computing:</label> [A]</li>
                        <li><label>Database Specification:</label> [A]</li>
                        <li><label>Software Development:</label> [B+]</li>
                        <li><label>OO Software Development Project:</label> [B-]</li>
                        <li><label>Four Advanced OO Software Systems:</label> [A*]</li>
                        <li><label>Systems and Simulation:</label> [A-]</li>
                        <li><label>Computer Graphics:</label> [B+]</li>
                    </ul>
                </telerik:RadPageView>
                <telerik:RadPageView ID="RadPageView3" runat="server">
                    <ul>
                        <li><label>Programming:</label> C#, JavaScript, C++, PHP</li>
                        <li><label>Web Technologies:</label> HTML, CSS, DHTML</li>
                        <li><label>Databases:</label> SQL Server 2005, MySQL, Access, Oracle</li>
                        <li><label>Operating Systems:</label> Windows, Linux, DOS</li>
                    </ul>
                </telerik:RadPageView>
            </telerik:RadMultiPage>
        </div>
    </form>
</body>
</html>

Thanks in advance.

Regards,
Sandeep Devagiri

TabStrip

answered on 02 Feb 2024

0 answers

78 views

RadScheduler - Design View for Templates

I can't figure out how to use the Visual Studio Design View on the Scheduler Templates.

For example, on Gridview I can convert columns to templates and then view and edit these templates in the designer.

How do I do this for the different Templates for the Scheduler (e.g. AdvancedInsertTemplate and AdvancedEditTemplate) ?

Scheduler

asked on 01 Feb 2024

2 answers

1.8K+ views

Object reference not set to an instance of an object. Error

We're getting this error in the prerender event of the page with a grid:

Error message: Object reference not set to an instance of an object.

Stack trace: at Telerik.Web.UI.RadComboBox.OnInit(EventArgs e)

at System.Web.UI.Control.InitRecursive(Control namingContainer)

at System.Web.UI.Control.AddedControl(Control control, Int32 index)

at Telerik.Web.UI.GridPagerItem.InitializePagerItem(GridColumn[] columns)

at Telerik.Web.UI.GridPagerItem.SetupItem(Boolean dataBind, Object dataItem, GridColumn[] columns, ControlCollection rows)

at Telerik.Web.UI.GridTableView.CreateTopPagerItem(Boolean useDataSource, GridColumn[] copiedColumnSet, Boolean isPagingEnabled, GridTHead thead)

at Telerik.Web.UI.GridTableView.CreateControlHierarchy(Boolean useDataSource)

at Telerik.Web.UI.GridTableView.CreateChildControls(IEnumerable dataSource, Boolean useDataSource)

at System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls()

at System.Web.UI.Control.EnsureChildControls()

at Telerik.Web.UI.GridTableView.get_Items()

at Telerik.Web.UI.GridTableView.GetSelectedItems()

at XXX.StudentSearch_PreRender(Object sender, EventArgs e) in C:\XXX\StudentSearch.aspx.vb:line 140

at System.EventHandler.Invoke(Object sender, EventArgs e)

at System.Web.UI.Control.PreRenderRecursiveInternal()

at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Private Sub StudentSearch_PreRender(sender As Object, e As System.EventArgs) Handles Me.PreRender

If grd.MasterTableView.GetSelectedItems.Count > 0 And grd.Visible Then

tab.Visible = True

mp.Visible = True

Else

tab.Visible = False

mp.Visible = False

End If

End Sub

The error is occurring in the GetSelectedItems call. I had originally used the SelectedItems, but was getting an error with that occasionally, so I switched to GetSelectedItems. The error doesn't always happen, so it's not something I can easily reproduce.

Below is the definite for the RadGrid:

<telerik:RadGrid ID="grd" runat="server" AutoGenerateColumns="False" CellSpacing="0"

GridLines="None" AllowPaging="True" PageSize="20" Width="600px">

<ClientSettings>

<Selecting AllowRowSelect="False" />

</ClientSettings>

<MasterTableView HierarchyDefaultExpanded="false" HierarchyLoadMode="ServerOnDemand"

DataKeyNames="StudentUID">

<CommandItemSettings ExportToPdfText="Export to PDF"></CommandItemSettings>

<RowIndicatorColumn FilterControlAltText="Filter RowIndicator column">

<HeaderStyle Width="20px"></HeaderStyle>

</RowIndicatorColumn>

<ExpandCollapseColumn FilterControlAltText="Filter ExpandColumn column">

<HeaderStyle Width="20px"></HeaderStyle>

</ExpandCollapseColumn>

<Columns>

<telerik:GridButtonColumn CommandName="Select" FilterControlAltText="Filter column column"

Text="Open" UniqueName="column" ButtonType="ImageButton" ImageUrl="Images/Open.gif">

<ItemStyle Width="20px" />

</telerik:GridButtonColumn>

<telerik:GridBoundColumn DataField="StudentID" FilterControlAltText="Filter column1 column"

HeaderText="Student ID" UniqueName="column1">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="LastName" FilterControlAltText="Filter column2 column"

HeaderText="Last Name" UniqueName="column2">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="FirstName" FilterControlAltText="Filter column4 column"

HeaderText="First Name" UniqueName="column4">

</telerik:GridBoundColumn>

<telerik:GridBoundColumn DataField="Middle" FilterControlAltText="Filter column3 column"

HeaderText="Middle" UniqueName="column3">

</telerik:GridBoundColumn>

</Columns>

<EditFormSettings>

<EditColumn FilterControlAltText="Filter EditCommandColumn column">

</EditColumn>

</EditFormSettings>

</MasterTableView>

<FilterMenu EnableImageSprites="False">

</FilterMenu>

<HeaderContextMenu CssClass="GridContextMenu GridContextMenu_Default">

</HeaderContextMenu>

</telerik:RadGrid>

Grid

answered on 01 Feb 2024

0 answers

73 views

RadClientExportManager not including <img>

We are exporting our webpage to a PDF using RadClientExportManager. There are two <img> on the webpage, one is included in the downloaded PDF, but one is not on the PDF. The one that is on the PDF has it's "src" set in the HTML tag, and the image that is not showing up on the PDF has its source set in the code behind from an API call.

Image that is working:

<img src="~/Logo.png" runat="server" height="120" align="Right"/>

Image that is not working:

HTML:

<img id="imgProfilePicture" runat="server" align="left"/>

VB.net:

imgProfilePicture.Src = API_Call.SelectToken("e[10].image_url")
imgProfilePicture.Height = 120

Both images are visible on the website, just not on the downloaded PDF.

Any help would be appreciated, thank you.

ClientExportManager

updated question on 01 Feb 2024

1 answer

74 views

Help me upgrade 2016 version to R1 2023 SP1 version.

Hi everybody,
I am using telerik.web.ui 2016 version for ASP.NET website. How can I upgrade to R1 2023 SP1 version in .NET framework 4.0. I see the new version has added key validation in IIS . I don't know where to start.
We wish everyone help!

Ajax

UI for ASP.NET AJAX in ASP.NET MVC

updated answer on 01 Feb 2024

1 answer

105 views

Selection bug MultiColumnComboBox

Steps:

1. Go to Telerik Web UI MultiColumnComboBox WebForms MultiColumnComboBox Overview Demo | Telerik UI for ASP.NET AJAX

2. Enter "ha" select some records

3. Click out of the dropdown to close it

4. Textbox keeps "ha" but the message below reads that You have selected Thomas Hardy whose ID is AROUT. They are a Sales Representative at Around the Horn however, nothing has been selected.

Is it expected ?
If it's a bug and having a long cycle to fixing bugs could you recommend any workaround?

MultiColumnComboBox

updated answer on 29 Jan 2024

1 answer

108 views

How to access Scheduler cell and fill in cells with color?

Hi, I have a Timeline view RadScheduler, and I would like to access some of the cells based on resource name and time slot.
Please see the image for reference.
I searched forums and most questions are about how to set the background color of time slots, and I checked documentation the time slot represents the whole row/column of a specific time for all resources. But in my case I only want to set the time slot of specified resource, aka a single cell or coulple of cells.
Could anyone help me?

Scheduler

answered on 26 Jan 2024