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by: Terminal882003 |
last post by:
Hi,
I have a problem in my application(C#) if I using RichTextBox to
continuously display a series of text messages (using method
AppendText()). When application is running, it will stop at some point
(randomly), the error message is:
*********************************
System.NullReferenceException: Object reference not set to an instance
of an object.
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by: Paul |
last post by:
I'm trying to use a RichTextBox in a winforms application which communicates
with a database via webservices. However when I try to pass the
RichTextBox.Rtf property to the WebMethod, I get a serialization error caused
by the '\0' which is automatically appended to the string. I have tried to
store the string as RichTextBox.Rtf.Replace("\\0","") but it doesnt seem to
work. Any help would be appreciated.
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by: nouno |
last post by:
I am trying to spell check a richtextbox. Through code (shown below) I
save the contents of the richtextbox to a rtf file, open the rtf file
in Word, spell check it, save it, and then load the ftf file back into
the ricktextbox using loadfile.
The problem is that the richtextbox seems to remain bound to the rtf
file. If I make a change in the richtextbox after spell checking, the
changes are successfully saved to the database but if the...
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by: Jon Cooper |
last post by:
Hi,
I'm developing an app that uses a RichTextBox, and populates it with
colour formatted text at Form Load. However, I randomly receive this
error, which I believe is related to this data population:
Unhandled Exception: System.NullReferenceException: Object reference
not set to an instance of an object.
at System.Windows.Forms.RichTextBox.EditStreamProc(IntPtr dwCookie,
IntPtr buf, Int32 cb, Int32& transferred)
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by: Peter Row |
last post by:
Hi,
I have created a UserControl which is subsequently hosted on a standard
form.
My control has a TabControl on it but it has no TabPages configured.
At runtime I create X pages and put a single RichTextBox on each page.
In my controls loaded event I call my Render() method which configures
everything appropriately. When setting up the TabControl the first thing
it says is (not real var names):
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by: vertigo |
last post by:
Hello
I have some Threads, and they write something to
RichTextBox.Text property. But sometimes i receive error:
************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance
of an object.
at System.Windows.Forms.RichTextBox.EditStreamProc(IntPtr dwCookie,
IntPtr buf, Int32 cb, Int32& transferred)
at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr
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by: Eric |
last post by:
Using the 1.1 framework. We are using a newly created instance of a
RichTextBox Class in our server code to manipulate RTF that is stored
in the database. To clarify, we are not using or attempting to use
this class in the aspx page that calls the code, nor is the 'using
System.Windows.Forms' referenced in any of the aspx pages. The first
client using this software has been experiencing an error that we
cannot reproduce in-house. The...
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by: JonnyT |
last post by:
I searched high and low for an answer on how to auto scroll a
richtextbox and now I finally have it. Since it took me a while to
get a good efficient way of doing it that didn't require focus to the
control or the scrolltocaret method I decided that it would be worth
posting to anyone who might have similar concerns. For the record
this works well in an environment where you cannot have focus going to
the richtextbox....such as a chat...
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by: James Wong |
last post by:
Hi,
I use the RichTextBox in my program.
It will use different language in this RichTextBox (chinese and english
characters), and it set the "DualFont" and use different fonts.
By the way, how can I print out this content to printer easily?
Thanks!
James
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by: Vimalathithan |
last post by:
I just developing a editor. I have provide the options like Bold, Italic, underlin, font change, font size change. These font options are keep in with one toolstripbutton. the toolstripbar keep inside with panel.
The RichTextBox keep inside with other panel. The panel height and width is same with RichTextBox. The RichTextBox both scrolling options are make it as false.
I done the coding for RichTextBox's height to fit with...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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