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Hi everyone,
I have a textbox on a form with a Validating event handler attached. The textbox is bound to a data source. The code for the event handler is given below. Basically, the amount entered in the text field should not exceed the amount in the balance field. If this happens, error provider is set and Validating event is cancelled, giving the user the opportunity to correct the amount.
On the UI side e'thing is working fine, however I noticed that the data source is updated regardless, even if e.Cancel is set to true. That is a problem because the data source should never be set to an invalid value as it is taken as input for other calculations.
I expected that the data source would not be updated if e.Cancel is set to 'true'. Am I missing something?
Thanks,
Roel
private void textBoxCash_Validating(object sender, CancelEventArgs e)
{
if (Convert.ToDouble(textBoxCash.Text) > this.balance)
{
errorProvider.SetError(textBoxGenerateCash, "Cash exceeds balance");
e.Cancel = true;
}
else
{
errorProvider.SetError(textBoxCash, null);
}
}
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I just want to know wich one is better for learning and better in 3D perfomance?
OpenGL or Direct3D?
and please introduce some refrences for each one
-- modified at 4:58 Thursday 4th January, 2007
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Does anybody have a simple way to screen print from a VB.NET program? 've been looking and can't find a thing. Being new to VB, Maybe I'm trying to find the wrong things.
Thanks in advanced.
silver-gray
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Hi all,
Can I get any .net developpped library with proper UI, which gives the same functionality as DSO Framer control thats to display and edit office doc, xls etc files. Because the DSO Framer control uses unmanaged code which gives problem in web applications when hosted in clients local machine. So I need any .net developped tool to get these functioanlities done. I tried with aspose, but to change the document again we need to change the code, or we have to fight with sumo to make it independent of document format. So please
help me in this. You can email me at : aleem_abdul@akebonosoft.com. My requirement is to display the word or excel files in a browser, allowing user to edit it there only. He can email it from that page itself only only. Remember this page should contain a tool bar which contains appopriate buttons for those functionalities. The problem when I use aspose is, it doesnt have UI so occupies total page and if I want to change the format of the file(document), I need to change the code. And the problem with DSO Framer control is(it has nice UI but) it has to be installed on the client machine because it contains unmanaged code. By observing all these things please advise me.
Thank you.
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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Anything you impliment, will need to be installed on a client machine. Moving from what you've found to something .NET, will just mean your client will need .NET installed.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Yes dear but when you keep an acxtiveX control in your application, you need to install it too. That my client doesnt want, because to run an activeX control in a browser ofcourse its security need to be less.
So my client want an application, which uses only .net library and .net controls in it. So I need a tool made using .net and works same as DSO Framer. Could you please help me in this. I was in urgent thats why I put my queries 2-times. I will delete them soon after I get the answer. So please help me dear.
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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indian143 wrote: I will delete them soon after I get the answer.
Please don't, it's SO annoying. Just post in the right forum only, to start with.
indian143 wrote: So my client want an application, which uses only .net library and .net controls in it.
Is your client under the mistaken belief that .NET controls will just run in your browser ? They won't run at all, without the .NET framework installed. So, like I said, your end user will definately not be able to browse to your site without installing anything.
indian143 wrote: Could you please help me in this.
I answered your question, I can't change reality.
indian143 wrote: So please help me dear.
Just a little tip - in the West, guys don't call each other 'dear'. I am not upset or offended, but it's not a good habit to be in.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Christian Graus wrote: indian143 wrote:
So please help me dear.
Just a little tip - in the West, guys don't call each other 'dear'. I am not upset or offended, but it's not a good habit to be in.
You metrosexual you.
the last thing I want to see is some pasty-faced geek with skin so pale that it's almost translucent trying to bump parts with a partner - John Simmons / outlaw programmer
Deja View - the feeling that you've seen this post before.
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Is your client under the mistaken belief that .NET controls will just run in your browser ? They won't run at all, without the .NET framework installed. So, like I said, your end user will definately not be able to browse to your site without installing anything.
No.
He is right from his side, try to understan my problem. Ocx is built using un-managed code. But if I could get any thing similar to DSO Framer, and made by using .net framework. Because, he will install .net framework but for ocx browser settings has to be changed. Thats what I want. Once again I am repeating.
"I want a UI(control like label, text box any thing) which is made by using .net frame work and contains the functionalities similar to DSO Framer. And remember activeX controls are really not good to use. Its true, they are not that much secured and reliable. They have hell lot of problems. So please help me. And reply me whether its possible or not too. Even discuss with your friends too. But reply me soon, I am waiting for you reply.
I use the word "Dear" because this forum has helped me in too many ways. I cant even forget those supports. Thank you.
S/W Engineer
Akebono Soft Technologies
aleem_abdul@akebonosoft.com.
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Hi All,
Is There any way Add Extra Buttons to Title Bar in .net.
Plz Suggest me to get rid of this problem.
Thanks in advance
Nagaraju
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is there a way of making .net framework portable?
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What do you mean by "portable"?
Dave Kreskowiak
Microsoft MVP - Visual Basic
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The answer is probably, no. If you can explain what you mean, then I'd be happy to say no with more force 
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
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Dave Kreskowiak
Microsoft MVP - Visual Basic
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I mean that you could have an application on a memory stick, plug it in and access a .net framework application without .net framework installed.
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Nope. The .NET Framework MUST be installed to use an application that is based on it, meaning everything written in C#, VB.NET, or any other managed-code language targeting the .NET Framework.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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In a word document i've a paragraph. Programmatically i wants to check the spell and left side of each line of the paragraph i've to give the Error description.
In this above task,
I've done the spell check but i don't know how to generate error description in the left side of each line.
Any one can you help me?
Gopalakrishnan R (Software Engineer)
Ascendum Systems Pvt. Ltd
#90,II Main | Phase I | Electronics City | Hosur Rd | Bangalore 560100 | INDIA
Direct : 91.98801 98828
Office : 91.80.4135 9848
Email : Gopalakrishnan.R@ascendum.com
Web : www.ascendum.com
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I'm running into a bug in the DataGridView control, which happens only in the Release version of my code (ie, doesn't happen in the debugger).
Is there a place where I can read about known bugs/issues with various .NET components, and/or report the problems I'm seeing?
Thanks!
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Hi viewers from the future.
For anybody tracking this thread, the discussion has been continued on the C# forum[^].
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I want to change a string that appears in the status bar of the parent form on focus of a control(say check box or text box)in the child form.Please tell me how to do it?
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Write a property in the parent form that set/gets the string of the control and assign values to it in child form.
Intelligence is measured by common sense not by how many scholarly books you read.
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for exmple create two form(From1,Form2)
1.in form1,put a button and make a object from form2 like this:
private void button1_Click(object sender, EventArgs e)
{
Form2 f = new Form2(this);
f.ShowDialog();
}
2.create a object of form1 like this:
private Form1 m_parent;
3.in form2, for example put a button then changed form2 constructor like this:
public Form2(Form1 frm1)
{
InitializeComponent();
m_parent = frm1;
}
4.in form2,inside of button click event you can change form1 property,like this:
private void button1_Click(object sender, EventArgs e)
{
this.m_parent.Opacity = 0.5;
this.m_parent.Text = "ok";
}
5.you being successed!!
be carefull:if you want to change a control on form1 first of all you must change Modifire property of control
to PUBLIC, then you can use of them.
if you need to full project that work right,Please send an email to me and write in Subject of your mail "CODE PROJECT Request"
then i send it for you
have a good time.
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Hello
I am trying to get my feet wet with I/O.
Basically, I have an MP3 file that I want to "corrupt". At first, I thought merely adding some garbage bytes to the beginning would do the trick, but that doesnt work.
For example,
<br />
FileStream fs = new FileStream("try1.avi" , FileMode.Open, FileAccess.Write);<br />
fs.WriteByte(123);<br />
fs.Flush();<br />
fs.Close();<br />
After examining the edited file with a hex-editor, I noticed that the byte is correctly being added to the start of the file. However, WinAmp still plays the mp3.
Infact, I started directly shifting bytes around with the hex editor and realised that the file still plays! (albeit a little messed up)
Further research shows that this resilience is due to the format of the MP3 itself. It turns out an Mp3 file is divided into frames (each frame consisting of a header and data) which are independent of each other.
So... well.. anyone have any clever ideas how I can programmatically "corrupt" the Mp3 file? Ofcourse, I need to do it in such a way that I can reverse the process!
Regards,
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