Questions on UI for ASP.NET AJAX Forum

4 answers

485 views

NullReferenceException on Docx File Import

I have several documents I am importing in order to merge them into one document. This works find on all of them but one. On the import statement I get a null reference exception. I have verified that the stream is not empty. Does anyone have any clues for a work-around or fix?

var docToBeMerged = new DocxFormatProvider().Import(fileStreamForMergeTarget);

Sack Trace:

NullReferenceException: Object reference not set to an instance of an object.

at Telerik.Windows.Documents.Flow.FormatProviders.Docx.Model.Elements.Document.ParagraphContentElementBase.MoveInlinesToParagraph()
at Telerik.Windows.Documents.Flow.FormatProviders.Docx.Model.Elements.Document.HyperlinkElement.OnAfterRead(IDocxImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.OpenXmlElementBase`3.OnAfterRead(IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.OpenXmlElementBase.Read(IOpenXmlReader reader, IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.OpenXmlElementBase.ReadChildElements(IOpenXmlReader reader, IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.OpenXmlElementBase.Read(IOpenXmlReader reader, IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.OpenXmlElementBase.ReadChildElements(IOpenXmlReader reader, IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.OpenXmlElementBase.Read(IOpenXmlReader reader, IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.OpenXmlElementBase.ReadChildElements(IOpenXmlReader reader, IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Elements.OpenXmlElementBase.Read(IOpenXmlReader reader, IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.Model.Parts.OpenXmlPartBase.Import(IOpenXmlReader reader, IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.OpenXmlImporter`1.ImportXlsxPartFromArchive(ZipArchiveEntry zipEntry, OpenXmlPartBase part, IOpenXmlImportContext context)
at Telerik.Windows.Documents.FormatProviders.OpenXml.OpenXmlImporter`1.Import(Stream input, IOpenXmlImportContext context)
at Telerik.Windows.Documents.Flow.FormatProviders.Docx.DocxFormatProvider.ImportOverride(Stream input)
at Telerik.Windows.Documents.Common.FormatProviders.FormatProviderBase`1.Import(Stream input)
at DocumentProcessor.DocumentProcessor.GetPdf(List`1 roles, List`1 restrictedRoles, List`1 files, Boolean includeToc, Boolean includeFooter) in C:\Projects\DocumentProcessor\DocumentProcessor\DocumentProcessor.cs:line 172
at DocumentProcessor.Default.GetPdfDoc(String role) in C:\Projects\DocumentProcessor\DocumentProcessorHarness\Default.aspx.cs:line 47
at DocumentProcessor.Default.Test1_OnClick(Object sender, EventArgs e) in C:\Projects\DocumentProcessor\DocumentProcessorHarness\Default.aspx.cs:line 35
at Telerik.Web.UI.RadButton.OnClick(ButtonClickEventArgs e)
at Telerik.Web.UI.RadButton.RaisePostBackEvent(String eventArgument)
at Telerik.Web.UI.RadButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

General Discussions

answered on 05 Oct 2018

2 answers

2.3K+ views

Default Sorting

Hi,
I am using Telerik Rad Grid. I want my first column to be sorted by default in decending order and then by second column. Kindly help me to acomplish this.

Thanks in advance.

Grid

answered on 05 Oct 2018

1 answer

297 views

Best practice to implement RadGrid (sorting, pagination, filtring, ...)

Hi,
I integrated a Telerik – RadGrid control, that I bound to a large DataSource (server side), using an SQL request that join two tables having 2 000 000 rows.
I used RadAjaxPanel to avoid post back and reduce the response time.
The problem is that in every NeedDataSource event, I select all the 2 000 000 rows from the DataBase, which takes a long time.
To fix this problem I edited the SQL request using the arguments of the RadGrid (PageIndex and PageSize). But we have an application that includes a 200+ Grid, so we can’t do the same big modification to all the grids.
Is there a solution or a better way to implement pagination, sorting, grouping, … without having to select all the DataSource from DataBase? Or if there is a way autogenerate SQL Request in pagination, sorting, grouping, …

Grid

answered on 04 Oct 2018

2 answers

140 views

Radgrid Horizontal Bar and Header style width not working after deployment

Hi,

I have a radgrid and I have set the width along with that I have given Header style width so that Horizontal Scroll bar appears. Everything works pretty fine locally but after deployment on development server I do not see Horizontal bat and Columns resixe automatically. Any help is appreciated.

Grid

answered on 04 Oct 2018

2 answers

349 views

Dynamic Values from textbox and Dropdownlist

Hi, I have a radgrid, which has some columns created dynamically from code-behind, and rest of the columns are auto generated coming from the DataSource. The dynamic columns are : 1) CheckBox Column created through GridClientSelectColumn from backend(VB) 2)the remaining are a DropDown an TextBox created inside a GridTemplateColumn from backend(VB). I have also created hidden input field, to hold the values fromt he dropdown and the textbox respectively.

I followed some of the solution provided in the forum, Unfortunately, no success. Can anybody please help me to export this data. As of now, if i try to export in excel or pdf, I am getting a blank column in place of the textbox and "select" in the column representing the DropdownList and "False" in the column representing the CheckBox Column. Please advice or point to me in the right direction

I tried iterating the entire grid, and copy the selected value from the dropdownlist, but it is throwing a NullException, the values from TextBox is Empty

Thanks, in advance

Grid

answered on 04 Oct 2018

3 answers

127 views

Editor Font Size - Not applied automatically

I have an issue that when editor loads in first, it shows the default font-size = 3. That seems nice.
But when you start typing, it will will include in html the selected font size.

only if you select some text, change the font size from 3 to something else, and then change back to 3, it will include the contents in html

Is there anyway that it shows the default font size = 3, so it should auto append HTML for that font size=3 in the html?

thank you

Editor

answered on 04 Oct 2018

1 answer

201 views

How to set toggle button in a ToggleList to toggled client side

Hi,
I'm trying to set the toggle state of a button in a togglelist from client side code but nothing I try works.

<telerik:RibbonBarGroup Text="Status Filter">

<Items>

<telerik:RibbonBarToggleList>

<ToggleButtons>

<telerik:RibbonBarToggleButton Value="StatusFilterAll" Size="Medium" Text="All" Toggled="true" />

<telerik:RibbonBarToggleButton Value="StatusFilterOpen" Size="Medium" Text="Open" />

<telerik:RibbonBarToggleButton Value="StatusFilterInProgress" Size="Medium" Text="In Progress" />

<telerik:RibbonBarToggleButton Value="StatusFilteronHold" Size="Medium" Text="On Hold" />

<telerik:RibbonBarToggleButton Value="StatusFilterClosed" Size="Medium" Text="Closed" />

<telerik:RibbonBarToggleButton Value="StatusFilterAllExClosed" Size="Medium" Text="All Except Closed" />

</ToggleButtons>

</telerik:RibbonBarToggleList>

</Items>

</telerik:RibbonBarGroup>

I have tried

ServiceDeskRibbonbar.findToggleButtonByValue("StatusFilterAll").get_toggleList().set_toggledButton(ServiceDeskRibbonbar.findToggleButtonByValue("StatusFilterAll" ))

This does not seem to do anything. I have also tried

ServiceDeskRibbonbar.findToggleButtonByValue("StatusFilterAll" ).set_toggled(true)

This selects that item but the previous item still stays selected as well and the OnClientToggleListToggled is never fired.

So what is the correct way to achieve this?

Thanks

RibbonBar

answered on 04 Oct 2018

1 answer

138 views

Telerik_Web_UI_WebResource_axd

I installed Telerik version "2010.3.1109.40" on windows 10 machine and launched an asp.net web-site , i am getting an error "The page cannot be accessed because the related configuration data for the page is invalid and points to "Telerik_Web_UI_WebResource_axd" in web.config file. See attached file

Any ideas on how to trouble shoot.

General Discussions

answered on 04 Oct 2018

3 answers

376 views

Show error message inside Textbox

Hello,

I am developing a web site to target mobile devices and So to save space i want to display error messages inside the Radtextbox if validation fails. Is this possible?

Thank you,
Saira

Input

answered on 04 Oct 2018

1 answer

122 views

how to use SkinManager with ASP validation controls?

Since there doesn't appear to be a Telerik RequiredFieldValidator (or something similar) and we have to use the asp:RequiredFieldValidator ... how can we "Skin" the resulting Text output when validation is trigger? Without being able to Skin validators thru the SkinManager it sorta makes the asp:RequiredFieldValidator useless.

Any suggestions? Alternative approaches?

ON A SIDE NOTE: The sample code to display the validator error text inside the RadTextBox control doesn't appear to work: https://docs.telerik.com/devtools/aspnet-ajax/controls/textbox/features/validation

Cheers, Rob.

SkinManager

answered on 04 Oct 2018