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It is invalid to show a modal dialog or form when the application is not running in UserInteractive mode. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.
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.InvalidOperationException: It is invalid to show a modal dialog or form when the application is not running in UserInteractive mode. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.
Source Error:
Line 27:
Line 28: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Line 29: MsgBox("")
Line 30: End Sub
Line 31: End Class
Source File: c:\inetpub\wwwroot\WebApplication2\WebForm1.aspx.vb Line: 29
Stack Trace:
Thankyou,
Kalyan.
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2 points.
1. This is the Windows Forms forum, not the ASP.NET forum. Please don't post into inappropriate forums.
2. You're trying to show a messagebox in code that runs on the server, where normally there won't be a logged in user. Don't do it.
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You are best to ask asp.net related questions in the asp.net forum.
"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus
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how can i get correct code
Thankyou,
Kalyan.
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Step one - rephrase your question so it makes sense. Do you want to launch a second form ? Pass data between forms ? In any case, it sounds like the logical answer to this question will be to tell you to buy a basic book and work through it so you have a rudimentary understanding of the framework you're using.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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we just testing the code that is if we create new project,aaaaand drag the button,in button whenever we click that button new form will be display,how to write code for that.thank you 4 ur reply
Thankyou,
Kalyan.
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OK, it's as I thought. Programming is more than dragging buttons onto a form. You create an instance of the new form in the click event and you show it. If you can't understand what I just said, that just proves you need to buy a book.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Hello,
i am working on C# 2.0 winforms.
I have a ListView, in this there are 5 columns, in second column an icon need to be displayed.
my code as follows...
listView1.Columns.Add("");<br />
listView1.Columns.Add("");<br />
listView1.Columns.Add("two");<br />
listView1.Columns.Add("three");<br />
listView1.Columns.Add("one");<br />
listView1.Columns.Add("two");<br />
listView1.Columns.Add("three");<br />
<br />
listView1.FullRowSelect = true;<br />
listView1.GridLines = true;<br />
listView1.View = View.Details;<br />
listView1.SmallImageList = imageList1;
<br />
for (int I = 0; I <= 10; I++)<br />
{<br />
ListViewItem item = new ListViewItem("");<br />
item.SubItems.Add("");<br />
item.SubItems.Add("aaa"); <br />
item.SubItems.Add("bbb");<br />
item.SubItems.Add("cccc"); <br />
item.ImageIndex = 0;
listView1.Items.Add(item);<br />
}
my problem is... item.ImageIndex = 0; is showing icon in only first column. i have to show icon in second column.
how to to do?
any sounds will be greatly appriciated.
Ramana
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Hi All,
Even I am also having same requirement. Please let me know is it possible to display icon in second colunm? otherwise I will make use of datagrid..
-Sangmeshwar Patil
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Hi Everyone,
i have 2 Forms( Form 1 & Form 2 ) i have Button 'Add' on Form 2 & i need when i press it (in runtime) the values added on form 2 appears on form 1;
Regards
Geronimo_p3
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Phoenix_p3 wrote: i have 2 Forms( Form 1 & Form 2 ) i have Button 'Add' on Form 2 & i need when i press it (in runtime) the values added on form 2 appears on form 1;
Well, I'm sincerely delighted for you. Just this morning, I was saying to my wife - "if only I had two forms, one of which has a button 'Add' on it which could be pressed and the value appears on form 1." And ye verily, she did say to me "Get a life you sad idiot".
I assume that there's a question lurking about in there somewhere. I'm also going to go out on a limb and assume that the question is "How do I get a value from form2 to appear on form2?" Try reading this[^] article. (Sidenote - I hope that you use better names for your forms than this).
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Pete O`Hanlon wrote: How do I get a value from form2 to appear on form2?"
I assume one of those 'form2' instances should be 'form1'. I didn't even get that was the question, I assumed he had a bizarre bug that no-one could solve without seeing the code.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Christian Graus wrote: I assume one of those 'form2' instances should be 'form1'.
You're right - I was so busy trying to make some sense of his post.
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*grin* I think you proved your point about sensible variable names but.
Christian Graus - Microsoft MVP - C++
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
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Christian Graus wrote: I think you proved your point about sensible variable names but.
Yup - I should practice what I preach.
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Hi every body
I m looking for .net Datagrid component i know that is already available in Window Forms but it is not flexible as that one is in ASP.Net 1.0
so any body can reffer me any link for free DataGrid should be easy to use/integrate in WinForms ; will be best if 100% same as of ASP.Net
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Hi ,
I`ve just hit an interesting roadblock in my app & would really appreciate any help / feedback. The "bug" can be replicated easily.
Basically, I have 2 forms running as 2 different processes , say Form X & Form Y.
Their properties are :
Form X : ShowinTaskbar = true , FixedToolWindow , Maximized.
Form Y : Showintaskbar = false , Borderstyle.None , Normal
We have methods on Form Y that can be invoked via Remoting to do Show(owner) , usually Form X ends up being the owner here. I`ve impleneted the IWin32Window interface and initialise it with my Form X`s handle (obtained via FindWindow)
The issue is that Form Y can NEVER retain focus (say when u click on a text box in it) and focus always gets transferred to the owner Form X. I`m not really setting an Owner / Owned relationship between them formally, say , via AddOwnedForms in Form X or Form.Owner = FormX since i guess this doesnt work across processes.
If we change the ShowInTaskbar property of Form X to false , or Form Y to true then there is no problem with the Focus.
Can someone please suggest where i`m going wrong or if theres any other action i need to do ? I dont really understand how the ShowinTaskbar property is affecting the focus mechanism , or whether this is how windows itself works.
So far i`ve tried doing a Activate() , Focus() & BringtoFront() in Form Y but it doesnt work.
SetParent isnt an option since it couples together their lifetimes i.e. if child crashes parent also crashes.
Thanks in advance
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As far as i understand your problem that is when you call formY then it shows behind the formX or lost focus when you click on its controls
if yes then you can solve it by 3 ways
1.use ShowDialog()
2. before calling FormY then set its TopMost property to true (perhaps it work)
3. write this.Focus() in Deactivate event of FormY
Becoming Programmer...
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Hi xmen_xwk ,
many thanks 4 ur reply. Right now Form Y is being shown , thats not an issue.
Actually what i`m trying todo here is make a set of Forms work together and we can interact with any form at any time even though they are in separate exe`s.
For eg: , do like minimize together , toggle between various owned forms(1 owner form is controlling a set of other owned form`s being shown or hidden),display them in a predefined part of the screen etc..
* showdialog() is a good idea but if i do it then i must close the Form Y and only then i can interact with Form X right ? so the blocking call causes problems
* Plus doing this.focus() in deactivate means i can never transfer control away from Form Y 
* All the forms are non-topmost bcoz then they will then be minimized and restored together. Would u suggest changing the TopMost value on various events like OnMinimize or LostFocus ?
that sounds promising.will try that
Theres a "hack" i`ve tried as below with some dummy form A :
Form A (grand-owner) : Form X (Owner) : Form Y (Owned)
All are topmost=false , Showintaskbar = true only for Form X and is false for others.
This helps solve the Keyboard focus problem , but i cant really put a "dummy form" into the actual production system code.
If its ok with u I could also mail a copy of the sample project for this issue.
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buddy your problem is strange for me because i still not understood what is the problem and what are you trying to do....
if you explain exact what you want (if you like) then it will be better to understand.
i just understood that you want to interact in all 3 forms....
Becoming Programmer...
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hi , just tried the options u`ve suggested... unfortunately the problem still remains 
ShowDialog() works but then i must close that form before interacting with any other forms.
Was the sample i uploaded useful ?
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did you try Show()?
if yes then try again, after enable the topmost of the form
Becoming Programmer...
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Hi Everybody
If anyone can one help me to change the traditional title bar for a window form in C# so i can use an image insted of that and can atach button such as Minimize, Maximize and Close of my own design
please help me by example or give me any reffrence urls for help
thanks
Altaf
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You need to set the FormborderStyle to None and then create your own title bar from scratch. It's actually easy.. Just drop some labels, buttons, whatsoever at the top of your form. Or perhaps create a panel just for the title bar.
Kristian Sixhoej
"Failure is not an option" - Gene Kranz
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Hi Kristian Sixhoej
Thanks for quick response
That thing was also in my mind but i was thininking that is there any method to overide it.
the prolem is this when i hv about 25 forms then it will be a tedious task what u think?
i want some wrriten method just written one time any copy paste to toher forms. Possibely by overriding paint method or ........ but i hv no idea yet about overriding paint method (i mean what can i do with it. Is the thing i m saying is possible with this or not)
waiting for ur reply.
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