"The given key was not present in the dictionary" - RadRichTextbox

[Purushothaman]

Hi Telerik Team,

In my Application am using RadRichTextbox Control to show the Title from RTF String.Some time its working fine.some time its giving exception (The given key was not present in the dictionary)

If Am using RTF String Like below means,

{\rtf1\ansi\ansicpg1252\uc1\deff0{\fonttbl  {\f0\fnil\fcharset0\fprq2 Arial;}  {\f1\fswiss\fcharset0\fprq2 Arial;}  {\f2\froman\fcharset2\fprq2 Symbol;}}  {\colortbl;\red0\green0\blue0;\red255\green255\blue255;}  {\stylesheet{\s0\itap0\nowidctlpar\f0\fs24 [Normal];}{\*\cs10\additive Default Paragraph Font;}}  {\*\generator TX_RTF32 15.0.530.502;}  \deftab1134\paperw12240\paperh15840\margl1440\margt1440\margr1440\margb1440\widowctrl\formshade\sectd  \headery720\footery720\pgwsxn12240\pghsxn15840\marglsxn1440\margtsxn1440\margrsxn1440\margbsxn1440\pard\itap0\nowidctlpar\plain\f1\fs24 Testing Data \par }

its giving Error like as Output.Jpg (Fig - 1)

if am using RTF string Like as below means

{\rtf1\ansi\ansicpg1252\uc1\deff0{\fonttbl{\f0\fnil\fcharset0\fprq2 Arial;}{\f1\fswiss\fcharset0\fprq2 Arial;}{\f2\froman\fcharset2\fprq2 Symbol;}}{\colortbl;\red0\green0\blue0;\red255\green255\blue255;}{\stylesheet{\s0\itap0\nowidctlpar\f0\fs24 [Normal];}{\*\cs10\additive Default Paragraph Font;}}{\*\generator TX_RTF32 15.0.530.502;}\deftab1134\paperw12240\paperh15840\margl1440\margt1440\margr1440\margb1440\widowctrl\formshade\sectd\headery720\footery720\pgwsxn12240\pghsxn15840\marglsxn1440\margtsxn1440\margrsxn1440\margbsxn1440\pard\itap0\nowidctlpar\plain\f1\fs24 Testeing Record for RadRichTextbox Control\par }

its working fine  like as Output.Jpg (Fig - 2).

Please tell me why its happen in First RTF String and please let me know how to handle this issues.

[Alex]

Hi,

We examined the problematic document and found that there are some spaces in the first document, that are causing problems while parsing. For example there is a pair of spaces just after the \fonttbl tag which are preventing our parser to read the font table of the document correctly and this results in the exception you get. If these spaces are removed the document is opened normally. 
We also noticed that the same pattern - a pair of spaces after some of the RTF tags is repeated throughout the first document sample. The second document however does not have any of those. 
Can you please share more information about the application that generated these RTF documents or weather there are some settings you can use to control the RTF that is generated.
I hope that was helpful.

Kind regards,
Alex
the Telerik team