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I want to underline DataGridView column caption text when user click in it.
I tried
foreach (DataGridViewColumn dataGridViewColumn in grid.Columns) {
DataGridViewCellStyle dgvcellStyle = new DataGridViewCellStyle();
System.Drawing.Font font = new System.Drawing.Font(
dataGridViewColumn.HeaderCell.Style.Font,
System.Drawing.FontStyle.Underline );
dgvcellStyle.Font = font;
dataGridViewColumn.HeaderCell.Style = dgvcellStyle;
}
But got exception probably since debugger shows that
dataGridViewColumn.HeaderCell.Style.Font
is null.
dataGridViewColumn.HeaderCell.Style is not null.
How to fix ?
Exception details which occurs:
System.NullReferenceException was unhandled
Message="Object reference not set to an instance of an object."
Source="System.Drawing"
StackTrace:
at System.Drawing.Font..ctor(Font prototype, FontStyle newStyle)
at myapp.BrowseForm`1.QueryData(Kontekst ko)
...
Andrus
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now i am using rdlc local report.thats why i use print function for printing report.
to display printer setup dialogbox i m using windows forms.
now in local it works perfectly,but when i publish the site,and run it,
it gives error.even when i publish in same local pc,also.
error and code below.
// --------------------------error---------------------------------
Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. 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: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[InvalidOperationException: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.]
System.Windows.Forms.CommonDialog.ShowDialog(IWin32Window owner) +3103234
System.Windows.Forms.CommonDialog.ShowDialog() +6
TMSPrintReport.Run() +116
TMSPrintReport.Page_Load(Object sender, EventArgs e) +1871
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +34
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
-----------------------------------error-------------------------------
----------------------------------code---------------------------------
followin is the function run()
private void Run()
{
Export(rep);
printDoc.PrinterSettings.PrinterName = PrnName;
if (!printDoc.PrinterSettings.IsValid)
{
// MessageBox.Show("Printer Not Found", PrnName);
pd=new PrintDialog();if (pd.ShowDialog() == DialogResult.OK)
{
PrnName = pd.PrinterSettings.PrinterName;
printDoc.PrinterSettings.PrinterName = PrnName;
}
}
psd.Document = printDoc;
if (!pd.PrinterSettings.IsValid)
{
if (psd.ShowDialog() == DialogResult.OK)
{
PrnName = psd.PrinterSettings.PrinterName;
printDoc.PrinterSettings.PrinterName = PrnName;
printDoc.DefaultPageSettings.PaperSize = psd.PageSettings.PaperSize;
printDoc.DefaultPageSettings.Margins.Left = psd.PageSettings.Margins.Left;
printDoc.DefaultPageSettings.Margins.Right = psd.PageSettings.Margins.Right;
printDoc.DefaultPageSettings.Margins.Top = psd.PageSettings.Margins.Top;
printDoc.DefaultPageSettings.Margins.Bottom = psd.PageSettings.Margins.Bottom;
// printDoc.DefaultPageSettings.Landscape = psd.PageSettings.Landscape;
}
}
m_currentPageIndex = 0;
Print();
}
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HI
I have two forms called form1 & form2. Form1 contains one textbox & one button and Form2 contains one text box & one button. When I press button of form2 i want to get form2 textbox value into form1 textbox and form2 to be closed but form1 remains displayed with form2 textbox value.
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Hello!
Is there any way to preview how my form and the controls on it would look like, before actually running it? I tried to visualize it in the designer itself by docking the other windows, but was just curious if VS 2005 had some 'Preview option' to view the form on the Full screen.
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VS probably has a full screen mode, otherwise, that's precisely what the designer is for.
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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in c# i created the first form as a login the second displays a buddy list once you login the first form is hiden using Form1.hide(); now on the second one i have a log out button that i want to close the second form and open the original first form not a new object i have everything done but reopening the first form. thank you if you can help
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Gregory Bryant wrote: the first form is hiden using Form1.hide();
Gregory Bryant wrote: open the original first form not a new object
Form1.Show();
led mike
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i am trying to open the first form from the second that does not work i get an error
An object reference is required but i dont want to creat a new object and i do not know how to get the orginal object from my second form
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Gregory Bryant wrote: and i do not know how to get the orginal object from my second form
that's an Object Oriented Programming beginners issue. You need a C# book for beginners. Trying to learn programming fundamentals over the internet forums is not an efficient means of doing that.
led mike
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so in other words you dont know thanks lol
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Gregory Bryant wrote: so in other words you dont know thanks lol
Well if I were to decide to insult you in this context it would be because I do know how to do that and have known since about 1992. So what's your reason?
led mike
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Do you see that funky shaped icon beside his name? That means he does know - he's just not sure you're capable of this yourself.
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well the fuction he is trying to tell me to use is Visual basic function try it your self works fine in VB but not C++ or C# which i was asking about
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I hate to tell you this, but it's a method on the Form class, and does work in C#. I've used it often enough to recognise it.
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Wrong. I have a C# Windows Forms application that I executed that code in before I posted it to you.
I am trying hard not to insult you ( no comments needed from you Pete  ), I really mean it sincerely when I suggest you need to use a beginners book. There is nothing wrong with that, I still have shelves of them at home from when I started and I still have to look things up in them almost 20 years later!  It's a never ending experience learning about development but we really need a foundation to work from.
led mike
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led mike wrote: I am trying hard not to insult you ( no comments needed from you Pete ),
Moi? Little ole moi? Would I...?
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The Show method works just fine in both C++.NET and C#. I use it every day 
"Real programmers just throw a bunch of 1s and 0s at the computer to see what sticks" - Pete O'Hanlon
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which funky do you mean, AE or BE? if I'm getting insulted, at least let me know
and prepare for a fearless riposte. 
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Funky as in classy shaped icon. No insults there - just 3 MVPs chewing the fat.
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Which leads to another question: did/does CP ever explain what MVP stands for?
it could be many things, Most Vertical Primate being one of them.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Luc Pattyn wrote: did/does CP ever explain what MVP stands for?
I don't know about yours but my award stands for Most Valuable Puke. I wanted Most Valuable Cookie Tosser but Chris said John Simmons already had that.
led mike
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it seems to me we need another editable column in the database, so we can personalize this.
And in a couple of weeks the friday quiz question: given 40 MVP names and 40 titles,
who is who?
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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I'd like to think it's Most Valuable Professional, but in my case it could be Madly Vocal Pessimist.
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I didn't see you as a pessimist 
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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