|
Use dataset.tables[index].Select to filter the dataset.
I think you should be able to databind the combobox to the dataset using one of it's properties in e.g. designview.
Mads
|
|
|
|
|
Hi everyone
How do get the listview control to force a multiple line display when the
column width is too small?
Anyone written an overide implementation on this? Some sample source will
be most helpful
Many thanks
bchong
|
|
|
|
|
Hi. I want to create a simple notepad.
I used a multiline textbox. I wanted to create a shortcut
for selecting all text in the textbox like pressing ctrl-A would
select all text. Anybody knows how to do this?
Please help me.
"To teach is to learn twice"
|
|
|
|
|
textBox.SelectionStart = 0;
textBox.SelectionLength = textBox.TextLength;
And who modded the parent posting up to 5???
--
-Blake (com/bcdev/blake)
|
|
|
|
|
You can also use textBox.SelectAll().
|
|
|
|
|
I'm new to the C# language, and my Java experience is foiling me here.
My application doesn't really have one main form--it has two (or at least I feel they should be peers). Exactly one of these two windows is visible at any one time, but I'd like the one that IS visible to operate as if it's the main form, in that clicking on the close box of the Form subclass will kill the application. By default, the Form passed to Application.Run(), if closed, kills the entire application. Is there any way to change the main form so that the entire application DOESN'T die just because I call Close() against it. My intent is to create a second (completely different) form, call Show() against it, and then Close() the original one. I could just set it to be invisible, but I'd rather dispose of it entirely and not have to maintain a reference to the Form just so I can call Close() against it when time comes to really kill the application.
Any advice?
|
|
|
|
|
Replace:
Application.Run(myForm);
with:
myForm.Show();
Application.Run();
Alternatively, derive from ApplicationContext and pass one of those into Application.Run(), that's what ApplicationContext's are for.
And don't worry, we won't hold the whole Java thing against you.
--
-Blake (com/bcdev/blake)
|
|
|
|
|
Hi there Blake,
i am pretty new to GUI programming and just picked up C#.
is it possible in anyway that you can point my to an example or tutorial with regards to this?
a little more explaination or examples will be Very much appreciated =)
thanks 
|
|
|
|
|
With regards to what exactly?
--
-Blake (com/bcdev/blake)
|
|
|
|
|
opps..
i don't really know the term used but.
for example, i have a form that has a couple of controls then when the users click say "Search DataBase", another form will show the status and then finally transit to a Datagrid that shows the database information.
Must i create 3 seperate forms for them and if yes, how do i transit from form to form?
thanks
|
|
|
|
|
Ah... this is quite a different sort of question than what the original poster asked about.
There's no hard and fast answer, it comes down to style more than anything. That said, I would not use multiple forms for the sort of thing you are describing. Consider instead one form, with actions (like Search Database) chosen from a menu, toolbar or task pane; the status as the search is performed displayed across the status bar and the result grid in the client area all along. All one form, no switching.
--
-Blake (com/bcdev/blake)
|
|
|
|
|
I have a question about enumeration types. I'd like to know if there is a way to iterate through all the literal values? I know if you have:
<br />
enum enumtype {field1, field2, field3};<br />
You can get the symbolic names from the enum using:
<br />
enumtype.field1.ToString();<br />
And I'd like to be able to go through all the posible symbolic names in my enum and add them to a combobox without having to know what all the symbolic names might be right now (because it'll probably change and I'm too lazy to have to change it multiple times!). But enum's don't seem to support and kind of a count property or have anyway of getting the symbolic name when all you know is the underlying int value.
Does anybody know if such a thing is possible with an enum, or should I probably define an array of structs or something similar?
Cheers
|
|
|
|
|
Add them to a combobox like this:
combo.Items.AddRange(Enum.GetNames(typeof(enum_typename)));
Find out the value from the selected name:
int itemIndex = combo.SelectedIndex;
string name = combo.Items[itemIndex].ToString();
datatype Value = (enum_typename)Enum.Parse(typeof(enum_typename), name);
Get a name from a value:
string name=Enum.GetName(typeof(enum_typename),value_variable);
"Blessed are the peacemakers, for they shall be called sons of God." - Jesus
"You must be the change you wish to see in the world." - Mahatma Gandhi
|
|
|
|
|
Great! I'll give it a try.
Thanks
|
|
|
|
|
Hi, I have this problem with connection pooling... I don't understand why they say that ServicedComponent's are stateless, except "Pooled" components.
I have done pooling in the past. But for all circumstances, the only difference between "pooled" serviced component and "non-pooled" serviced component is that you can only instantiate a number of pooled components up to whatever specified as max pool size.
Member variables (or attributes) lives for as long as the instance lives - "pooled" and "non-pooled" exhibits same behavior. But, I guess with "pooled-component", you can implement cleanup in Deactivate method.
Did I miss anything?
norm
|
|
|
|
|
Yes, you missed: pooled components are reused. Suppose you have a limited resource or a resource that takes too much time to acquire (e.g., a mainframe connection - a real world problem I solved using COM+ pooled components). You can then use the same physical connection with two different clients and keep this connection alive effortlessly by using pooled components.
Since you are keeping state (in this example, the mainframe connection) between two different requests, it is ok to say that this component is not stateless.
You can do it on anything you choose - from .bat to .net - A customer
|
|
|
|
|
thanks. i think i figure that out now.
norm
|
|
|
|
|
I am writing an Visual Studio.NET add-in in C# using the Add-in Wizard.
I would like to specify the namespace according to what I believe is supposed to be the standard naming convention:
CompanyName.TechnologyName[.Feature][.Design]
Unfortunately, since the wizard automatically generates the namespace from the solution name, I'm not really sure what all I need to change manually.
I know from other work that you can simply change a single, simple namespace name by just replacing it. (say Addin1 can be changed to Addin2).
BUT, when I try change a simple namespace to this extended type, my addin does not work anymore. When I get it "work" I get errors saying that the class has not been registered.
Any ideas?
|
|
|
|
|
Within the actual code you can just replace all references of the auto namespace to the one you want. But then you also, if memory serves, right click on the Project and Solution and change the Default namespace and other namespace related fields. Also if you have an Installer project then you need to check it's various fields.
regards,
Paul Watson
Bluegrass
South Africa
Miszou wrote:
I have read the entire internet. on how boring his day was.
Crikey! ain't life grand?
|
|
|
|
|
How put an icon for a control, on IDE ?
|
|
|
|
|
|
Hello,
I'm putting together an app which has to list the files in a selected directory. I'd like to put together the tightest and most efficient solution possible.
I'd like to pull the file data from a specific folder and bind it to a repeater or datagrid form control.
Is it possible to pull multiple file types using DirInfo.GetFiles? I'm right now using wild cards combined with file extensions, but when I try using DirInfo.GetFiles("*.gif|*.jpg"), for instance, I get an error.
If this is not possible, can I bind two different file collections to a form control without having to first add them both to an arraylist or other collection, and then bind the collection to the form control?
|
|
|
|
|
A quick glance through the code says no. GetFiles ends up just tacking the search pattern on the end of the path and calling through to the native FindFirstFile/FindNextFile. They do not support anything but standard globbing. Sorry.
--
-Blake (com/bcdev/blake)
|
|
|
|
|
Hi!
I am designing a graphics editor in c#. I face a trouble, if i drag a complex graphics item, it will be impossible to draw it once between two movemove event. But in normal solution, movemove event processed one by one, then it will be long delay before the graphics show on the place mouse cursor on for the program will first draw it on several useless places where mouse moved before. Is there any solution in dotnet to peek the message? If a new mousemove message arrived, the program should abandon the work it is doing and redraw on new place.
I think it is the same when we move the scrollbar.
Any idea or demo?
Thanks!!
|
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
