1 answer

329 views

Hi everyone,
I'm having problems with $find and getElementById. In my page $find doesn't find the objects while getElementById finds them but then the client-side API functions are not executed (error message: "splitter2.get_height is not a function").

$find always returns NULL, both on the RadSplitter and RadGrid.

To understand I also isolated the affected code in a new page, same problem. This is the code:

<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>

<!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">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager ID="RadScriptManager1" runat="server">
        <Scripts>
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />
        </Scripts>
    </telerik:RadScriptManager>

    <div>
        <telerik:RadSplitter ID="RadSplitter1" runat="server" SplitBarsSize="2" Width="100%" >
            <telerik:RadPane ID="LeftPane" runat="server" >
                <telerik:RadGrid ID="RadGrid1" runat="server"></telerik:RadGrid>
            </telerik:RadPane>
            <telerik:RadPane ID="RightPane" runat="server" >
            </telerik:RadPane>
        </telerik:RadSplitter>
    </div>
    <script type="text/javascript">
        var Alt = window.innerHeight;
        var Larg = window.innerWidth;
        var splitter = $find('<%= RadSplitter1.ClientID %>');
        alert(splitter);

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

        var splitter2 = document.getElementById('<%= RadSplitter1.ClientID %>');
        alert(splitter2);
        alert(splitter2.get_height());
        splitter2.set_height(800);

    </script>
    </form>
</body>
</html>

Thanks for your help

Grid

Splitter

answered on 28 Aug 2023

0 answers

133 views

Try Point Charts

Helo, can i try this one ?

Telerik Web Forms Point Charts - RadChart - Telerik UI for ASP.NET AJAX

General Discussions

asked on 28 Aug 2023

1 answer

234 views

"index out of range" after deletinga step and then licking next

I try to inplement this : https://demos.telerik.com/aspnet-ajax/wizard/application-scenarios/add-remove-wizardsteps/defaultvb.aspx

This works fine in a test project. I am able to delete a step and every thing works fine.

But on my target project, after deleting a step: Step is deleted. all looks fine. But each time i click on "next" or on another step header i recieve error message.. In errormessage i see this has nothing to do with my code.

Server Error in '/' Application.

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index]
   System.Collections.ArrayList.get_Item(Int32 index) +12906457
   Telerik.Web.UI.GridColumnCollection.System.Web.UI.IStateManager.LoadViewState(Object savedState) +107
   Telerik.Web.UI.GridTableView.LoadStructureState(Object SavedStructure) +140
   Telerik.Web.UI.RadGrid.LoadTableViewStructure(IEnumerator stateEnumerator, GridTableView tableView) +52
   Telerik.Web.UI.RadGrid.LoadViewState(Object savedStateObject) +146
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +274
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +149
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +325
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +149
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +325
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +149
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +325
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +149
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +325
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +149
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +325
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +149
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +325
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +149
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +325
   System.Web.UI.Page.LoadAllState() +456
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2236

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4654.0

I think it is the wizard. But it might be some othe stuff that is on the page.

I am not able to find what it is...

Any suggestion ?

Wizard

answered on 25 Aug 2023

0 answers

239 views

Event sequence of Grid

What is the event sequence of grid OnPreRender? Will it be fired only once or every time there is a postback?

When the grid is ajaxified, will OnPreRender be fired every time when there is a postback?

I'm asking this because when postback my breakpoint in Grid OnPreRender is not hit after Page_PreRender event when the grid is ajaxified.

Thanks.

Grid

updated question on 25 Aug 2023

1 answer

109 views

Two way declarative binding not working for grid form template.

Hi,

I am trying to implement form template demo here, https://demos.telerik.com/aspnet-ajax/grid/examples/data-editing/form-template-update/defaultvb.aspx . The problem is that it is throwing error on 'Bind' that it is not declared. I am using .NET 4.6..1 . The only differences are is that with the sqldatasource, it's running stored procedures rather than a query and It's in a radajaxpanel.

Grid

answered on 23 Aug 2023

0 answers

163 views

RadMultiSelect WCAG 4.1.1 Parsing Error - Duplicate DOM Control with the same Id.

The RadMultiSelect implementation has one error that WCAG 4.1.1 parsing is catching. There is a duplicate span with the same id.

Found in the page source of the demo page (similar to how I implemented as well):

https://demos.telerik.com/aspnet-ajax/multiselect/virtualization/defaultcs.aspx

MultiSelect

asked on 23 Aug 2023

1 answer

80 views

Untrusted Deserialization in RadMultiSelect control for webForms.

Hi Telerik team,

the "Contrast Security" tool we use shows us a "Untrusted Deserialization" Vulnerability found on one of the ASPX (webForms) page where we utilize RadMultiSelect control. (Our current version is 2021.1.119.45).

Could you please suggest any options now to fix it, please?

Details:

Tracked the following data from "ctl00_Main_content_ddlMSelectMultipleStaff_ClientState...:

POST /vosnet/communications/scheduler/default.aspx

ctl00_Main_content_ddlMSelectMultipleStaff_ClientState={"enabled":true,"selectedItems":[],"deselectedItems":[],"value":[2613],"selectedDataItems":[{"text":"Skaggs","value":"2613","Lastname":"Skaggs","Userid":2613,"attributes":{"FullName":"Skaggs Kari","Color":"background-color:rgb(89,20,195);","ColorARGB":"5838019"}}]}&ctl00$textsize=.......SNIP...........

...which was accessed within the following code:
Telerik.Web.UI.RadMultiSelect.LoadPostData()

...and ended up being deserialized with code that looks like this:
m = serializer.Deserialize<M>("{"enabled":true,"selectedItems":[],"deselectedI...")

MultiSelect

updated answer on 22 Aug 2023

1 answer

292 views

How to maintain input value in edit mode when page partially post back

Please help.

Hello. I have put a telerik grid inside an asp update panel, the update panel is updated every 5 seconds by a asp timer on the same page. Inside the timer's OnTick event, I wrote RadGrid.Rebind() since the datasource is changing over time.

There is an edit button column for RadGrid, when user presses this button inside this column to edit corresponding record, the input values are always flushed out by RadGrid.Rebind. By the way, the edit mode of grid is in line editing.

In order to handle this issue, I added code inside the timer's OnTick event before RadGrid.Rebind, that is to check if RadGrid.EditItems.Count > 0 then return and don't rebind. Now the input values won't be flushed but the mouse cursor will always be reset.

Is there any possible way to realize my requirement, keep input values in edit mode while the RadGrid is inside an update panel that updates every few seconds?

Thanks!

Grid

answered on 21 Aug 2023

3 answers

6.8K+ views

Set Selected Value ComboBox

People, can you help to select radcombo item in server side?
Look in my example

drpActive.SelectedValue = 2;

When I try this example above, RadComboBox does not select the element.

Can you help me to solve this, please?

Best Regards,

Milton Camara

ComboBox

updated answer on 18 Aug 2023

1 answer

169 views

Stacked graph with variable steps

Is it possible to have a stacked graph where the y axis labels only show to inticate teh top of each part of the stack, eg 143 then next shows at 159 (based ont eh 2nd value of 16) and so on?

I thought, seeing as you can specify each "series" step that it might be doable but its not working for me

Here is a snapshot of my code:

            graphEmailAlerts.DataSource = eAdatatable
            graphEmailAlerts.DataBind()
            graphEmailAlerts.Visible = True

            graphEmailAlerts.Appearance.FillStyle.BackgroundColor = Drawing.Color.Transparent

            'Y axis
            graphEmailAlerts.PlotArea.YAxis.AxisCrossingValue = 0
            graphEmailAlerts.PlotArea.YAxis.Color = Drawing.Color.Black
            graphEmailAlerts.PlotArea.YAxis.MajorTickType = HtmlChart.TickType.Outside
            graphEmailAlerts.PlotArea.YAxis.MinorTickType = HtmlChart.TickType.None

            Dim totalvalue = eAdatatable.Rows(0).Item("value1") + eAdatatable.Rows(0).Item("value2") + eAdatatable.Rows(0).Item("value3")

            graphEmailAlerts.PlotArea.YAxis.MinValue = 0
            graphEmailAlerts.PlotArea.YAxis.MaxValue = CDec((Math.Ceiling((totalvalue * 1.2) / 100) * 100))

            graphEmailAlerts.PlotArea.YAxis.LabelsAppearance.DataFormatString = "{0} "
            graphEmailAlerts.PlotArea.YAxis.LabelsAppearance.RotationAngle = "0"
            graphEmailAlerts.PlotArea.YAxis.LabelsAppearance.Skip = "0"

            'X-axis
            graphEmailAlerts.PlotArea.XAxis.AxisCrossingValue = 0
            graphEmailAlerts.PlotArea.XAxis.Color = Drawing.Color.Black
            graphEmailAlerts.PlotArea.XAxis.MajorTickType = HtmlChart.TickType.Outside
            graphEmailAlerts.PlotArea.XAxis.MinorTickType = HtmlChart.TickType.None
            graphEmailAlerts.PlotArea.XAxis.DataLabelsField = "type"
            graphEmailAlerts.PlotArea.XAxis.Reversed = False
            graphEmailAlerts.PlotArea.XAxis.BaseUnit = HtmlChart.DateTimeBaseUnit.Auto
            graphEmailAlerts.PlotArea.XAxis.LabelsAppearance.DataFormatString = "{0} "
            graphEmailAlerts.PlotArea.XAxis.LabelsAppearance.RotationAngle = "0"
            graphEmailAlerts.PlotArea.XAxis.LabelsAppearance.Skip = "0"
            graphEmailAlerts.PlotArea.XAxis.LabelsAppearance.Step = "1"


            graphEmailAlerts.PlotArea.Series.Clear()

            Dim cs_ss As New ColumnSeries()
            cs_ss.Stacked = "true"

            cs_ss.DataFieldY = "value1"

            cs_ss.LabelsAppearance.Step = eAdatatable.Rows(0).Item("value1")
            cs_ss.LabelsAppearance.Position = HtmlChart.BarColumnLabelsPosition.Center
            cs_ss.LabelsAppearance.DataFormatString = "Saved Searches {0}"
            cs_ss.Appearance.FillStyle.BackgroundColor = Drawing.Color.FromArgb(165, 213, 162)
            cs_ss.TooltipsAppearance.DataFormatString = "Saved Searches {0}"



            graphEmailAlerts.PlotArea.Series.Add(cs_ss)

            If eAdatatable.Rows(0).Item("value2") <> 0 Then
                Dim cs_tracked As New ColumnSeries()
                cs_tracked.Name = "Tracked"
                cs_tracked.Stacked = "true"

                cs_tracked.DataFieldY = "value2"
                cs_tracked.LabelsAppearance.Position = HtmlChart.BarColumnLabelsPosition.Center
                cs_tracked.LabelsAppearance.DataFormatString = "Tracked {0}"
                cs_tracked.Appearance.FillStyle.BackgroundColor = Drawing.Color.FromArgb(255, 181, 110)
                cs_tracked.TooltipsAppearance.DataFormatString ="Tracked {0}"

               cs_tracked.LabelsAppearance.Step = eAdatatable.Rows(0).Item("value1") + eAdatatable.Rows(0).Item("value2")

                graphEmailAlerts.PlotArea.Series.Add(cs_tracked)
            End If

Chart (HTML5)

updated answer on 14 Aug 2023

Server Error in '/' Application.

Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index

Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index