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I know that to display a custom control's attribute in a specific category in the PropertyGrid you use:
[Browsable(true), Category("SomeCategory"), Description("Some info....")]
What I would like to do is have one overriding category for my control's attributes (such as "Control Specific") and then have subcategories for more specific things (such as "Colors"). Sort of like under "Appearance" there is "Font". How do I do that?
Thanks.
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In short, you can't define a sub-category. You can have properites be expandable though. In your example, the Appearance property would be of type (say) MyAppearance. MyAppearance type would define it's TypeConverter as ExpandableObjectConverter[^]. Then MyAppearance's properties would be shown in the PropertyGrid (which would include a Font property).
This[^] article describes how to use ICustomTypeDescriptor (which allows you to dynamically change what is shown in the PropertyGrid) and ExpandableObjectConverter.
Take care,
Tom
-----------------------------------------------
Check out my blog at http://tjoe.wordpress.com
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My application can be minimized to the system tray. It also has code in it to stop from multiple copies of the app to be launched. The problem is that when I try to launch a second copy of the app it does what it should, looks for a running version of the app and if it finds it closes but it still has the taskbar icon till I run my mouse over it then it goes away. How can I clear that out when the app closes?
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Hi Gene,
a NotifyIcon remains visible until you Hide() it or Dispose() it.
If you fail to do so (e.g. when the app crashes, or you stop it while debugging),
it will remain there until you hover it, unless you run a tool that cleans up,
see my TrayIconBuster article.
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 have tried using couple of
AxSHDocVw.AxWebBrowser = new AxSHDocVw.AxWebBrowser(); control on my widows form. The problem with all of them is when i copy and and paste an image from MS Word it doesn't display except an empty box. Can you please point me to the right resource.
Thanks
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I need to create a DateTime object on Daylight saving End day contain following value
2008-11-02T02:00:00.0-07:00
for year 2008, daylight saving end Nov 2 (above value is in local time zone, I am Pacific time Zone) -8PST / -7PDT from GMT
Is any way I can create Datetime object containing above value.
If am able to create
2008-11-02T01:59:59.0-07:00 (When I add one second it change to -8)
2008-11-02T01:00:00.0-08:00
I appreciate your help.
Thanks,
Samir.
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DateTime instance, AddHour method. If you want to subtract, DateTime has a Subtract method that takes a TimeSpan but it's easier to use AddHour with a negative value.
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Hi,
Thanks for you reply.
Problem is
In real both value represent same time instance
2008-11-02T02:00:00.0-07:00(this is not exist in DateTime) == 2008-11-02T01:00:00.0-08:00(This is exist)
But I need this value in DateTime object "2008-11-02T02:00:00.0-07:00"
If I use AddHour() member of DateTime
enddate contains "2008-11-02T02:00:00.0-08:00"
enddate = enddate.AddHour(-1) //"2008-11-02T01:00:00.0-08:00"
enddate = enddate.AddHour(-1) //"2008-11-02T01:00:00.0-07:00"
If you have any question, please let me know.
If you can give me some sample I will appreciate it.
Thanks,
-Samir.
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Oh man, just one link :
TimeZone[^]
We have use this library in our projects and is awesome.
Hope this help.
Cheers.
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But that timepoint does/will exist, and I expect to sleep through it. So I don't understand your problem.
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Hello everyone, in a windows service i am using log4net and its SmtpAppender to send the exceptions to an email account.
Everything is fine, but the email is a little bit ugly. I want to know if exists some library which take a generic exception and return an string in html format. Something like the yellow pages showing in asp net websites.
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Hello everyone,
There is a project here where the next step is to be able to communicate with a mail server. Right now I'm using Telnet to get the job done, but in the near future this will become huge and I need a way to automate this.
When I start, I type: "telnet mail.theserver.com 25". This starts up a connection with theserver on port 25 (the mail server). After that, I'm communicating directly with the server through port 25.
I need to be able to automatically send information through this port using C# so that I can have an interface, instead of typing everything by hand. I found a few leads that have to do with sockets, sending and listening for data, and I'm stuck.
Is there a way to do what I want with a minimum of trouble? I just need something that lets me open a connection to an IP address and a port, and start sending and receiving info.
Thanks for your time,
Michael Fritzius
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Dear Friends
I want to know which rows in my dataset were changed and after that update a coulmn in rows that were changed. I can get Changed rows by GetChanges but this function put data in new dataset so I can't change that coulmn in real dataset.
Thanks
Agh
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dataSet.Tables["yourTable"].Columns.Add(yourNewColumn);
Cheers,
Vikram.
"If a trend is truly global, then that trend ought to be visible across ANY subset of that data" - fat_boy
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hi
how can i pick some records in datagrid ?
in c# code
thanks
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Hi Guys, I've been trying for quite sometime to accomplish this task but now I am at my wits end so I turn to you "the professionals" for assistance. My problem is as follows: I have a method which executes a stored procedure with two select queries which return two tables of data which is rans accross the several databses to view individual store performace. This data is then available to the application in a data set. The first table (table[0]) returns the transactions details (i.e. ProductID, ProductName, Cost, Sales date) while the second table(table [1]) returns a summary of each stores sales activity. What I am hoping to is display the "Details"(Table[0]) the below those records display the summary of the stores activity. However, this query is ran over several databse (one per store) thus when the dataset is returned information for all the stores are in there hence it looks something like this:
Table[0]
StoreID StoreName Product TotalSold TotalIncome
0015 Joe's Store SomeBeer 1000 $10,0000
0016 Mike's Store FoodItem 500 $2500
0017 Mary's Store Clothing 500 $2500
and so on...
Table[1]
StoreID ProductName Unitcost UnitSold Total
0015 SomeBeer1 $10.00 50 500.00
0015 SomeBeer2 $8.00 50 400.00
0015 SomeBeer3 $10.00 50 500.00
0015 SomeBeer4 $10.00 50 500.00
0016 SomeBeer1 $10.00 50 500.00
0016 SomeBeer2 $8.00 50 400.00
0016 SomeBeer3 $10.00 50 500.00
0016 SomeBeer4 $10.00 50 500.00
0017 SomeBeer1 $10.00 50 500.00
0017 SomeBeer2 $8.00 50 400.00
0017 SomeBeer3 $10.00 50 500.00
0017 SomeBeer4 $10.00 50 500.00
and so on....
What I need is:
Store 15
StoreID ProductName Unitcost UnitSold Total
0015 SomeBeer1 $10.00 50 500.00
0015 SomeBeer2 $8.00 50 400.00
0015 SomeBeer3 $10.00 50 500.00
0015 SomeBeer4 $10.00 50 500.00
StoreID StoreName Product TotalSold TotalIncome
0015 Joe's Store SomeBeer 1000 $10,0000
Store 16
StoreID ProductName Unitcost UnitSold Total
0016 SomeBeer1 $10.00 50 500.00
0016 SomeBeer2 $8.00 50 400.00
0016 SomeBeer3 $10.00 50 500.00
0016 SomeBeer4 $10.00 50 500.00
StoreID StoreName Product TotalSold TotalIncome
0016 Mike's Store FoodItem 500 $2500
Store 17
StoreID ProductName Unitcost UnitSold Total
0017 SomeBeer1 $10.00 50 500.00
0017 SomeBeer2 $8.00 50 400.00
0017 SomeBeer3 $10.00 50 500.00
0017 SomeBeer4 $10.00 50 500.00
StoreID StoreName Product TotalSold TotalIncome
0017 Mary's Store Clothing 500 $2500
Here is the code that I am using to try to accomplish this:
public Table GetInfoTable(DataSet MyDS)
{
Table DisplayTable = new Table();
try
{
foreach (DataTable CurrentTable in MyDS.Tables)
{
foreach (DataRow CurrentRow1 in CurrentTable.Rows)
{
TableRow DisplayRow1 = new TableRow();
DisplayTable.Rows.Add(DisplayRow1);
foreach (DataColumn CurrentColumn1 in CurrentTable.Columns)
{
TableCell DisplayCell1 = new TableCell();
DisplayRow1.Cells.Add(DisplayCell1);
DisplayCell1.Text += CurrentColumn1.Caption;
foreach (DataRow CurrentRow in CurrentTable.Rows)
{
TableRow DisplayRow = new TableRow();
DisplayTable.Rows.Add(DisplayRow);
string currentTableFIName = DisplayTable.Rows[0].ToString();
foreach (DataColumn CurrentColumn in CurrentTable.Columns)
{
TableCell DisplayCell = new TableCell();
DisplayRow.Cells.Add(DisplayCell);
if (CurrentRow[CurrentColumn] != null)
if (CurrentRow[CurrentColumn] != DBNull.Value)
{
DisplayCell.Text += CurrentRow[CurrentColumn].ToString();
}
else
{
DisplayCell.Text += string.Empty;
}
}
}
}
}
}
}
catch
{
}
this.DisplayTableDate = DisplayTable;
return displayTable;
}
Skan
If you knew it would not compile why didn't you tell me?!?!?!
modified on Wednesday, January 23, 2008 4:38:31 PM
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You can return the data in 1 query by using the ROLLUP[^] command in your SELECT statement. ROLLUP is used to for producing summary information for a set of rows. In your case, you can use it to produce subtotals for each set of sales records grouped by store.
Paul Marfleet
"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush
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ThanksPmar, however, I have used "Rollup" in the SP itself thus the calculation. The result is table[1]. However table[0] counts the transcation based on a different criteria. I got all the information I need from the DB, however it can not be done in single query. All I need is to display the dat from the dataset.
Skan
If you knew it would not compile why didn't you tell me?!?!?!
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Using C#.net express edition I created an application that has the main code in the parent form.
In this form I create an object and I want that object to change values in the parent form before the object returns a value (I am doing a progressbar).
I could create a form object from the child object but that would not look as nice.
HELP!
shwa guy
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shwaguy wrote: Using C#.net express edition I created an application that has the main code in the parent form.
In this form I create an object and I want that object to change values in the parent form before the object returns a value (I am doing a progressbar).
I could create a form object from the child object but that would not look as nice.
Either have your object fire progress events, which you can wire and use to update your ProgressBar from the main form, or pass the ProgressBar to the object and have it do the update directly. The first method is more code, but vastly preferrable.
If your object uses threads, beware of UI marshalling issues.
Share and enjoy.
Sean
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thanks for the reply.
I still do not know how do what I need to do, but I think I might be on the right path now.
I never had to fire events before, I guess I am about to learn.
shwa guy
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Applications don't have IP addresses, machines do. Go study your subject matter and come back after you have gained an understanding of it sufficient for forming your question in a way that it actually makes sense.
led mike
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