Monday, 29 October 2007
|
| Localization of help (.chm) files Amit Bhatnagar 20:24:53 |
| | Hi All.
Does anyone know how to handle deploying localized .chm help files? Say
I want to have an English and French versions of my help, but how does
Windows know which version of the help to bring up when the application
calls upon Help.ShowHelp()?
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Thank you.
|
| |  2 answer | Add comment |
|
| Suggestions: File Layout Editor Brady Kelly 20:07:11 |
| | I'd would like some suggestions on how to implement the actual bands, or
groupings, editor GUI for a file export system I am busy with. Currently, I
have a tree view on the left, explorer style, which lists as top level nodes
all the Sections in an export, e.g. Customers, Clients, Customer Invoices
etc. Then, under each section I have the data source queries for that
section, and all record defintions, i.e. column collections, for that
section. Now in the XML definition file, under the record definitions, I
have groupings to one level, where each grouping may be on Invoice Number.
Each grouping can have a header, emitted once before each group, body
emitted for each item in the group, and a footer, emitted once after each
group. Header, body, and footer can contain one or more lines that
correspond to record definitions. I'm now looking for ideas on how to
present the layout of these groupings to users for editing.
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| | 3 answer | Add comment |
|
| OT Is the list still active William E. Booth 18:56:59 |
| | I have not received any messages since September. Is the list still active?
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| | 7 answers | Add comment |
|
| Class Function in WinForms project R. Rogers 18:44:36 |
| | Hi everyone,
I have a very simple form that allows the user to select an upload type from
a combo box, then either click on ok or cancel. The main form calls the
UploadType form as so:
frm_GetUploadType frmGetUploadType = new
frm_GetUploadType();
if frmGetUploadType.ShowDialog() == DialogResult.OK
{
UserSelectedUploadType = frmGetUploadType.UploadType;
...
}
I don't want the calling form to have to instantiate, check, and get the
upload type.
I want a class method/constructor to do all that for me.
I've begun doing that by writing this simple code for the in the
frm_GetUploadType class:
public static UploadTypes GetUploadType(ref bool OKClicked)
{
}
I have three questions:
. I believe I should be doing this in a static method, not a static
constructor; constructors only get called when an instance is created. Is
this true?
. I call these class methods, from a previous language, but are they called
that in C#?
. Why am I getting a CS0050 compile error? Inconsistent accessibility:
return type 'type' is less accessible than method 'method'
Thank you for any help you can provide.
Richard Rogers
http://www.RichardRogers.ca/
|
| | 2 answer | Add comment |
Friday, 26 October 2007
|
| Persistant variable value in CLR stored proc Brady Kelly 00:08:22 |
| | I've just had a very strange experience running a CLR stored proc. The
procedure is a data export procedure, from our application database, its
data source, to an accounting database, its data destination. It takes its
data source connection from the context, and its destination connection
string from the source DB. When I first ran the proc, I got back the error,
"Keyword not supported: Provider", so I removed the provider clause from the
destination connection string.
However, until I restarted my SQL server, I continued to get the same error.
My ONLY action that resolved it AFTER correcting the connection string was
restarting the server. This is plain scary if updating DATA, never mind
code, requires a server restart. I can reproduce this on demand, using my
existing codebase.
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| | 8 answers | Add comment |
Thursday, 25 October 2007
|
| Why must the designer create an instance of my control's absract base class? Brady Kelly 18:47:45 |
| | I'm not asking it to create an instance of the base class, just the derive
class. Can anyone tell me why this is so?
|
| | 2 answer | Add comment |
|
| Windows Forms changes in framework 3.5 James Berry 15:01:58 |
| | I can't find any documentation on the net, so thought I would ask here
Are there any changes (either new features) or bug fixes to the windows forms librarys in .net framework 3.5?
Best wishes
James
|
| | 2 answer | Add comment |
Monday, 22 October 2007
|
| Managed enums Andrew Eames 22:22:43 |
| | Hi,
According to the the MSDN docs http://msdn2.microsoft.com/en-
us/library/a6cskb49(VS.80).aspx
Quote
If a standard C++ enum is defined (without class or struct), compiling
with /clr will cause the enumeration to be compiled as a managed enum. The
enumeration still has the semantics of an unmanaged enumeration. Note, the
compiler injects an attribute, Microsoft::VisualC::NativeEnumAttribute,
which the Visual C++ compiler recognizes, to identify a programmer's
intent for the enum to be a native enum. Other compilers will simply see
the standard enum as a managed enum.
/Quote
When I do this, the enum is marked as internal so this is not actually
very helpful - is there a way to make it public (other than making it a
managed enum) - I dont see the NativeEnumAttribute either
Thanks
Andrew
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| | 2 answer | Add comment |
Friday, 19 October 2007
|
| Databinding panel.Height Alan Baljeu 18:03:40 |
| | I created a Mypanel object and docked it full to a form. Within class Mypanel the following
code is called before the form is shown.
this.DataBindings.Add("Height", psm, "Height");
this.DataBindings.Add("Width", psm, "Width");
Shouldn't this result in psm.Height property changing whenever I resize the form by dragging
with my mouse? It doesn't, and I have no idea what's at fault. Maybe these properties
don't support databinding events?
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| | 4 answer | Add comment |
Thursday, 18 October 2007
|
| How to quickly find control in DataGrid... Gyorgy Bozoki 18:01:46 |
| | Hi all,
I have a DataGrid on a web page (ASP.Net 2.0) and I need to go through each
DataGridItem when a button is pressed on the page. The grid has 5 columns
and one of the columns has an HtmlTable control with a single row and 10
columns and each column contains a CheckBox control.
When the button is clicked on the page, I go through the grid (100 rows, for
example) and I need to access each checkbox to see if it changed. Right now
this is what I do:
DataGridItem oItem;
DataGridItemCollection oItems;
CheckBox chkCheckBox;
...
for ( int i = 0, lCount = oItems.Count; i < lCount; i++ )
{
oItem = oItems[i];
chkCheckBox = oItem.FindControl ( "ControlName" );
if ( chkCheckBox != null )
{
...
}
}
I assume that each row in the DataGrid has the same order of these
checkboxes (since it's generated from the HTML designer template), so I was
wondering if it was possible to somehow cache the control indices for my 10
checkboxes, since I found that FindControl() is a very expensive call.
(Checked in Reflector.)
The problem is that all these controls are the children of the immediate
HTML table cell in which they're placed, not the DataGridItem, so using an
index instead of the name-based lookup seems out of question (all checkboxes
have a 0 index, because they're the only controls in each table cell.)
Is there anything I could do to do away with the unnecessary lookups and
recursive string matches of FindControl? I feel like I'm missing something.
Thanks,
Gyorgy Bozoki
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| | 2 answer | Add comment |
Wednesday, 17 October 2007
|
| Databinding Vince Pacella 23:24:32 |
| | This is driving me nuts... and I need someone to set me straight.
I'm trying to configure the SQL Command Parameter for the foreign key of
a "Child" table. The .net code side source of data is a Stong Typed
dataset of the master child and relation. The Primary Key of the master
is a SQL Idenity Column.
What's the proper way to set the Parameter value in code, if the code is
handling Inserts and Updates of both master and child tables. There is
no "rule" that the master needs to be "INSERTed" in order for there to
be a child INSERT, so just doing a blanket caputure of an Output
Parameter of a SQL Stored Proc on an INSERT on Master isn't the answer.
I tried this approach, but it's not working properly, I get the error
that my Stored Proc is expecting the value of this Parameter but that it
doesn't have it.
if (dataset.Tables[0].Rows[0].RowState ==
DataRowState.Unchanged || dataset.Tables[0].Rows[0].RowState ==
DataRowState.Modified)
commSubInsert.Parameters.Add("@Profile2Key",
SqlDbType.Int, 4, "Profile2Key");
if (dataset.Tables[0].Rows[0].RowState ==
DataRowState.Added)
{
commSubInsert.Parameters.Add("@Profile2Key",
SqlDbType.Int, 4);
commSubInsert.Parameters["@Profile2Key"].Value =
commMainInsert.Parameters["@Profile2Key"].Value;
}
Regards,
J. Vince Pacella / OOCL Chicago
10.30 - 7.00 Central
Tel - 773-399-6218 Fax - 773-867-5050
Cargo Tracking Online at:
www.cargosmart.com and www.oocl.com
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| | 3 answer | Add comment |
|
| Problem with data bound master - detail Brady Kelly 13:44:02 |
| | I have a DataSet called 'exportDefsDataSet', with two tables, 'ExportDef'
and 'ExportDefItem'. The data set contains a relation,
'ExportDef_ExportDefItem' that relates the two on ExportDefID. This
represents a set of export definitions, and definition items within the
export definition, i.e. one export definition has many items.
I have a form with two binding sources on it, 'exportDefBindingSource' and
'exportDefItemBindingSource'. The DataSource of the 'parent' binding source
is set to 'exportDefsDataSet' and the DataMember to 'ExportDef'. The
DataSource of the 'child' binding source is set to 'exportDefBindingSource',
and the DataMember to the relation 'ExportDef_ExportDefItem'.
I have a ComboBox bound to 'exportDefBindingSource' and a BindingNavigator
and two textboxes bound to 'exportDefItemBindingSource'. When I select an
export definition in the combobox, I can navigate between the definition
items for that definition, but chaos ensues, as often the selected
definition disappears from the combo box, or the items for another
definition appear in the textboxes. I am battling to reliably preproduce
this behaviour, as often the setup works correctly, and after after a
seemingly random number of navigations does everything go bad.
Let me describe a typical scenario:
I start the application, and the first definition, "Access Accounting" is
automatically selected, and the BindingNavigator correctly navigates between
the items for "Access Accounting". The next definition is "AccpPac DOS",
and if I select it, the correct items for "AccPac DOS" are available, BUT,
"Access Accounting" is no longer visible in the ComboBox! Now there are two
"AccPac DOS" entries, and the first one of them selects the items for
"Access Accounting". Now I select a third option, "AMS", and get the AMS
items, but now I have two AMS entries, and the first one still points to the
"Access Accounting" items. The ComboBox is thouroughly out of sync, but I
can't find why.
|
| | Add comment |
Friday, 12 October 2007
|
| Regex.Replace... Gary Harpin 14:40:09 |
| | Hello all,
I am trying to use Regex.Replace() to clean a string before working on
it.
The incoming string can be of the form " 5E1Y - UMCF - PZNG - RPR4 -
H4KF - 6ICJ - HQ " or "5E1Y:UMCF ZNG" or ... and I need to replace any
ones and zeros with Is and Os and the strip it of everything that is not
A-Z or 2-7. "5EIYUMCFPZNGRPR4H4KF6ICJHQ"
So far I do the following:
...
cleankey = cleankey.Replace("1", "I").Replace("O", "0");
cleankey = Regex.Replace(cleankey, @"-([A-Z2-7])*", "");
...
The data will come from multiple sources (database, files, user input)
so need to handle different encodings, the above code fails on the first
stample because the last '-'.
I don't understand regex that well and could do with a hand.
Thank you.
Regards,
Gary Harpin
________________________________
"...a computer is a stupid machine with the ability to do incredibly
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| | 3 answer | Add comment |
Thursday, 11 October 2007
|
| Report grouping design Brady Kelly 15:37:31 |
| | Apologies if this is a little OT, but I seem to have hit a block and needed
a bit of a sounding board.
I'm developing a data export / import application, mainly focused on
producing text files, but also extended to read and write other database
tables. I'm having difficulty coming up with a structure / mechanism for
grouping for simple aggregates. At the moment have something like this in
my export definition. The header and footer attributes refer to previous
elements that define a sequence of columns for a type of record, as does the
"Line" element.
<Group name="Invoice" driverQuery="ClientInvoices"
groupFooter="InvHeader" groupKey="InvNoSort">
<Line recordDefinition="InvDetail" />
</Group>
My problem is that I need to include a single "InvDetail" line in the header
as well, and this probably requires me to remove the header def to its own
element, a child of the Group. I am just wondering if there are any
existing patterns I could employ here to do this a better way.
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| | Add comment |
Tuesday, 9 October 2007
|
| User Settings Vanish Brady Kelly 19:08:26 |
| | I've determined that my user settings are being stored in isolated storage,
and are replaced by defaults in app.config when my build number changes. Is
there any way around this while still retaining an automatic build number?
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| | 2 answer | Add comment |
Friday, 5 October 2007
|
| What does yield do? Bill Booth 19:05:48 |
| | I got a code sample from the internet and am trying to convert it to VB.
It is the first time I have run across "yield". Can someone give me some
idea of what is going on in this line (yield return box;)?
Thanks for any assistance.
Bill
/// <summary>
/// Read the IDataReader and return a list of of the specified
type
/// </summary>
/// <typeparam name="T">The type of the generic list</typeparam>
/// <param name="reader">The reader to read</param>
/// <returns>A list of class</returns>
public IEnumerable<T> GetEnumerator<T>(IDataReader reader) where
T : new()
{
SmartReader<T> smartReader = InitDelegate<T>(reader);
// Read
while (reader.Read())
{
T box;
smartReader(reader, out box);
yield return box;
}
}
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| | 2 answer | Add comment |
|
| Control.Validating event Anthony Nassar 00:15:32 |
| | I'm somewhat puzzled over what the CancelEventArgs argument to this
event handler is actually supposed to accomplish. Yes, I've read the
documentation. I have a number of composite controls in docking panels,
and I'd like to prevent the user, somehow, from setting focus to another
control in a different docking panel if he's put the model into an
invalid state from the current panel. However, a mouse click will cause
events the fire in this order: GotFocus, LostFocus, Leave, Validating,
Validated. Now the user can edit stuff in other controls, drag and drop,
whatever. It seems like I have no choice but to have the parent control
maintain the validity of the entire model, and therefore find the
control the user *was* working on and set the focus back to it. I could
do this in a clean, OO way, but in essence I'm grabbing the mouse and
putting it back where I want it to be, which seems like a horrible,
hacky, pre-.NET tning to do.
What exactly is the semantics of "Validate," if I can't cancel it in any
meaningful sense? The new control will get focus before the invalid
control loses focus, which makes sense in terms of Win32 messages, but
does *not* make sense in the context of my application, where a
composite control with invalid state should be able to keep the user's
attention as long as it needs to.
|
| | 2 answer | Add comment |
Wednesday, 19 September 2007
|
| Host Name of the request Sudhakar Jalli 22:05:42 |
| | Hello all,
I have a question around the host name. I believe the following statement
returns the host name.
Request.UrlReferrer.Host
If my url is http://test.web.com/testing/one.aspx
The result of the above statement would be test.web.com
If my url is http://www.one.com/testing/one.aspx
What would be the result of the above statement?
Any help appreciated.
Thanks
NM
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| | 1 answer | Add comment |
Wednesday, 12 September 2007
|
| Re: GridView and Page.IsValid Adam Sills 22:35:16 |
| | I think most people (myself included) would like to skip validation because
typically the Delete button should avoid all input validation that is
associated with the current editing row (since you're deleting the row
anyway).
Adam..
-----Original Message-----
From: Discussion of building .NET applications targeted for the Web
[mailto OTNET-WEB@DISCUSS.DEVELOP.COM] On Behalf Of Mark Brackett
Sent: Monday, September 10, 2007 9:38 AM
To: DOTNET-WEB@DISCUSS.DEVELOP.COM
Subject: [DOTNET-WEB] GridView and Page.IsValid
The GridView seems to check Page.IsValid before handling an Update
(reflected C#):
private void HandleUpdate(GridViewRow row, int rowIndex, bool
causesValidation) {
if ((!causesValidation || (this.Page == null)) ||
this.Page.IsValid) {
// ... do update to datasource ... //
}
}
But not on Delete. It calls Page.Validate() in bool
HandleEvent(EventArgs e, bool causesValidation, string validationGroup),
but only actually checks Page.IsValid in HandleUpdate(). Personally, I
think it should be checking IsValid on both Delete and Edit commands at
a minimum....
This seems like a huge oversight to me - is everyone hooking a handler
to GridView.RowDeleting and setting e.Cancel = !IsValid?
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| | 2 answer | Add comment |
|
| Simple Text Parser Matthew Bell 19:55:01 |
| | I am looking at developing a simple text parser. Is there an easy way to
format '<b>hello</b> world' and place it in a textbox or label.
I'm looking at implementing hyperlinks and maybe a picture from a text
document like the example above and I might as well add in the normal
b/u/i. Basically I'm looking for speed and a reduction in the size of
the file that needs to be stored as doing this using word documents
would be very sloppy.
Are there any useful controls out there or am I going to have to craft
something myself. And if I'm crafting it myself is there an easy way to
go about it or do I have to start hovering link-labels over textboxes
etc.
Cheers
Matt
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| | 2 answer | Add comment |
|
| Re: DOTNET-CLR Digest - 10 Sep 2007 to 11 Sep 2007 (#2007-123) Mike Cohen 08:13:44 |
| | Because of the Jewish High Holidays we will be closed until Monday Sept
17th, but we will check in for urgent messages
Mike Cohen
Network-Companions
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Tuesday, 11 September 2007
|
| Enumerating Dictionaries Brady Kelly 23:31:48 |
| | I find it a tad irritating that when I want to iterate all the
ColumnDefintion objects in my RecordDefinition, I always have to use '.in
recDef.Columns.Values'.
Is there a nice way I can expose an enumerator over the values property as
my 'Columns' property? Then I have problems adding etc.
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| | 1 answer | Add comment |
|
| Evaluation of post-increment Brady Kelly 21:49:34 |
| | Suppose I use the following to compare column names in my test columns array
with columns parsed by a parser under test. The parsed columns should be
the same as those used to create the string that is parsed.
RecordDefinition def = parser.ParseLineAsHeader(headerLine);
int i = 0;
foreach (ColumnDefinition col in def.Columns.Values)
{
Assert.AreEqual(testHeader[i], col.ColumnName, "Incorrect
name on column {0}.", i++);
}
Am I correct in assuming that 'i' will always be incremented?
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| | 3 answer | Add comment |
Monday, 10 September 2007
|
| Guessing field delimiters Brady Kelly 21:28:42 |
| | I'm busy developing a tool to convert my existing base of template based
record layouts to record layouts defined by an XML schema. Maintaining a
record layout definition as one long string full of empty quotes and empty
field double delimiters is looking for trouble. I'm now working on a tool
where the user selects a single line in the existing template, or in an
example file, and my code infers a collection of columns that define the
record layout.
So far, just today, I have come across three different column delimiters,
v.i.z TAB, comma, and something that renders a right angled corner graphics
character. I would like to be able to guess the delimiter, if there is some
sort of pattern I can look for, but it's not easy finding one.
Maybe the best I can do is allow the user to guess, and give a visual
representation of the result of using the guessed delimiter. Another option
is to allow the user to select two field contents and find the non-printable
character in between the two field contents.
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| | 1 answer | Add comment |
Sunday, 9 September 2007
|
| ItemDataBound not Firing on Repeater Brady Kelly 18:04:51 |
| | I have a user control that comprises a Repeater that builds a vertical table
of buttons. In the Page_Load event of the user control I bind an event
handler, but the event never fires. My code is like this:
protected void Page_Load(object sender, EventArgs e)
{
rptPageButtons.ItemDataBound += new
RepeaterItemEventHandler(rptPageButtons_ItemDataBound);
}
void rptPageButtons_ItemDataBound(object sender,
RepeaterItemEventArgs e)
{
throw new Exception("The method or operation is not
implemented.");
}
However, if I use the OnItemDataBound attribute, the event fires. Why could
this be?
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| | 5 answers | Add comment |
|
