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This is the problem, i have a ocx, that have one control and one uint Property, like this
Property color, acept values uint, Manually i set the value as this:
object.color = 0xFFFFFF;
for wythe color, i want to set the color using:
ocxObject.color = colorDialog1.Color; /// this is the error
and i get the error, because the ocxObject.color only acept uint
i make the convertion:
ocxObject.color = (uint)(colorDialog1.Color);
and not have error in code but, the colors not Match.
any solutions thanks
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Hi,
not sure but I think you should try
ocxObject.color = colorDialog1.Color.ToArgb();
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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Hello there,
I´m writing a database application with ADO.net to manage my contacts.
I have a DataGridView DGVFriends on my Form that I want to connect to the Table "tblFriends" in my DataSet ds.
So far my code simply is:
DGVFriends.DataSource = ds.Tables["tblFriends"]
the problem is that all the columns in "tblFriends" are shown. For example ID, even though this is only the primary key and the user won´t be interested in it. so i want to omit it´s display in the dataGridView.
The second problem is:
in the same dataGridView I want to add a column that displays the full name of my contact and therefore is compound of the three columns name, middleName and lastName that are also in tblFriends.
Any ideas??
Thanks for help, useful links etc.
der gunnar
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dergunnar,
Adapt the SQL your executing, eg: select name, lastName from tblFreinds;
You can also concat values using SQL.
Regards,
Gareth.
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This should get you going (code not tested for accuracy).
<asp:GridView ID="UserGrid" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:BoundField DataField="FirstName" HeaderText="First Name" />
<asp:BoundField DataField="MiddleName" HeaderText="Middle Name" />
<asp:BoundField DataField="LastName" HeaderText="Last Namwe" />
<asp:templatefield headertext="Full Name">
<itemtemplate>
<asp:label id="FullNameLabel" Text='<%# Eval("FirstName") +
Eval("MiddleName") + Eval("LastName")%>' runat="server"/>
</itemtemplate>
</asp:templatefield>
</Columns>
</asp:GridView>
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Okay,
I should have asked a little more specific. The problem is I´m not working with a databasee. I just read an xml file into the dataset. since it is a local application that´s the easiest way to go.
the next thing is that I want to work with all the columns in the DataTable. that means that in the Datatable the columns ID, Name, middleName... ahould be present. not loading them doesn´t help me.
my problem really lies between the dataTable (already in memory) and the DataGridView.
A workaround for the compound name column that came to me is to create a column FullName in tblFriends. so the only problem would be to prevent the rest of the columns from being displayed n the DataGridView.
Thanx for your help so far!!!
der gunnar
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Hi
i wanna draw circle in a form and setting a picture in that , then moving that in form on a + (Plus) path . in fact the circle (with 100 pixel radius will move from center of form to each side of form
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Create a class that derives from Control. Override the OnPaint and OnPaintBackground methods. Use the graphics context to do the drawing.
Need a C# Consultant? I'm available.
Happiness in intelligent people is the rarest thing I know. -- Ernest Hemingway
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A table contains a,b,c columns
a contains data.
b and c Contains NULL Values.
I fill dataset(ds) with the values of a,b,c
if(ds.Tables[0].Rows[0]["b"].ToString()==Null )
textbox1.text="asd";
this condition is not satisfied,when comparing with value NULL ,they failed to compare and skip that condition.
What other syntax I can use to solve that problem.
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if(ds.Tables[0].Rows[0]["b"] == System.DBNull.Value)
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My print preview code looks like this:
PrintPreviewDialog dlg = new PrintPreviewDialog();
dlg.Owner = Application.OpenForms[0];
printDocument.DocumentName = file;
printDocument.PrinterSettings.DefaultPageSettings.Landscape = true;
dlg.Document = printDocument;
dlg.ShowDialog();
The setting is never turned off from landscape, and yet, the printing is landscape, and the print preview isn't. I've done some googling, but I can't see any further info on this, or any reason why it's not working ?
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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Hi Christian,
Couple of years ago I struggled a lot with printer settings (landscape, color, duplex),
I never understood the model, it seems complex and not logical; but I got it to work
eventually.
I use printDocument.DefaultPageSettings.Landscape=landScapeFlag;
and that seems to do it for me.
Hope this works for you too.
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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Awesome - there's two lots of page settings in the class, I guess one is the default for printing, and one is the default for preview ( but it's just on the root ).
That worked by the way, you're a champ, thanks.
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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I have create 20 different objects and offcouse they each of them peforms different task. But how can i determine which objects holds more memory out of 20 objects. Is there a way to figure it out so i can manage my objects efficiently.
Thanks
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Odds are high that you're worrying about nothing. What unmanaged resources do these objects contain ? If none, you probably don't need to care, unless you're going to create millions of them.
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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You're in a managed world for memory allocation, so it doesn't really make sense for you to worry about this so much. Just remember to instantiate an object just before it's about to be used and be sure to call Dispose() if the object is IDisposable. Let the GC do it's job and you should be fine.
But if you absolutely have to see this information, you should take a look at Son of Strike debugger. This should allow you to see your objects in memory and get their size. Again, this is not a run-time solution and I doubt you'll ever see a run-time API (at least from MS).
Here's an article on SOS debugger -> http://www.csharphelp.com/archives4/archive622.html[^]
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Count the number of members in your objects and guestimate the size of them. I say guess because I believe in .NET a Int32 does not take up 32 bits but slightly more. Also, count one word for each memory reference.
Also, if you use recursion you will have to guess the call stack as that is memory usage as well.
Need a C# Consultant? I'm available.
Happiness in intelligent people is the rarest thing I know. -- Ernest Hemingway
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Hi guys. I need to put a web browser into an application. I don't care what language I do it in, but I want to get events when a DOM event fires ( such as a mouseover or a click on a link ), and I want to get an event that tells me they are about to fire, which allows me to cancel the event. Is this even possible ?
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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Navigating will tell you when it tries to go somewhere, but I'm not sure how to capture every DOM event. Maybe if you told us what you want to prevent there is another way?
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Basically, I want to be able to know when an event occurs on the DOM, so my code can do something in response, or cancel the event. There's really no other way to do it.
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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Here's a list of the Events for the .NET 3.5 WebBrowser Class. http://msdn2.microsoft.com/en-us/library/system.windows.forms.webbrowser_events.aspx[^]
It appears that a lot of those events that miht be useful to you are marked as infrastructure and not supported by the control, but it appears that you can just inherit from WebBrowserBase and hook into those events from there.
Sorry I can't giveyou a definite answer as I've barely used the WebBrowser Class. Good Luck.
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thanks
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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I have to develop a web application from a web site.
On the web site, on the App_WebReferences folder, there is a folder
ContactComponent and there are 3 wsdl files, First,Second and Third inside that.
On the web site, the web service is referenced as ContactComponent.First,
ContactComponent.Second and ContactComponent.Third
On my web application also, I need to reference the same way.
How will I add all the three web services to one reference so that I can call ContactComponent.First
ContactComponent.Second
ContactComponent.Third
Thanks
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graphicsPath.AddString("sample", fontfamily, ..., ..., ...);
graphic.DrawPath(pn, graphicsPath);
I have added "sample" to addstring method while application is loading. As i proceed i require to change the name from "sample" to "Item". Can i change it? If yes, how?
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