C# GUI classes - C# Discussion Boards

8-Mar-04 10:34

Create a file called yourapp.exe.config and put it in the same directory as your application. In there, you should have something like this:

<configuration>
  <appSettings>
    <add key="connString" value="my connection string"/>
  </appSettings>
</configuration>

In your code, you can use Configuration.AppSettings["connString"] to get the connection string. This is a very common practice and there are many examples both here on CodeProject, in the .NET Framework SDK (like Mazdak said, look up information about configuration files), and all over the web.

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Raise Event

laptop_018-Mar-04 9:51

laptop_01

8-Mar-04 9:51

Hi

Is there a way to make a "single" click event behaves like a "double click" by using some sort of redirecting?

I am using C#

Thanks

Yasir Memon8-Mar-04 10:19

Yasir Memon

8-Mar-04 10:19

Can you be more precise with your question?

Do you mean you want to perform a double click just with a single click on a particular control?

You can always change the function name in the delegate for single click event declaration in the "Form Design code" to reflect the double click function.

Hope this is what you were looking for...

Yasir S. Memon,
ysm@aqualyzer.com
Chief System Architect,
Aqualyzer

laptop_018-Mar-04 10:27

laptop_01

8-Mar-04 10:27

Yesir;

Thanks for the reply.

I don't quite understand what you are ssying. Here is what I got:

this.gridPredictorCases.ClickEvent += new System.EventHandler(this.gridPredictorCases_ClickEvent);
this.gridPredictorCases.DblClick += new System.EventHandler(this.gridPredictorCases_DblClick);

I have a third party grid control inside my form. The cell in question has a dropdown combo that appears only if I double click on the cell. I like to be able to click once and have the dropdown open up.

Thanks

Heath Stewart8-Mar-04 10:37

8-Mar-04 10:37

Your event handlers don't control this behavior. Events are only raised as a result of clicking or double-clicking. If you need to change this behavior, you most likely need to extend the class and override key methods. The only way to find more information about that is to ask on any site forums related to this third-party control or to contact their technical support. This forum is for pretty much generic C# questions - not typically questions related to a particular product (especially third-party products that no one else would most likely be knowledgable about).

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laptop_018-Mar-04 11:07

laptop_01

8-Mar-04 11:07

Heath;

I posted the question in generic terms. I figured that a double click is a double click no matter how it is cooked and what banner it comes under.

But I see your point. I got it figured out based on your hint.

Thanks

Context Menu - Display Member, Value member

LongRange.Shooter9-Mar-04 7:38

LongRange.Shooter

9-Mar-04 7:38

You can easily solve this -- if the third party control exposes the Click event AND you are already handling the DoubleClick event.....

control_DoubleClick += new EventHandler(myProcessEvent);
control_Click       += new EventHandler(myProcessEvent);

In this case you are handling both double and single click events equally.

If the control automatically handles the DoubleClick (instead of you) then you need the Click event as well as a method to execute the DropDownBox process as well. Then you would be doing this:

control_Click += new EventHandler(myProcessEvent);
              ...
private void myProcessEvent(object sender, EventArgs args)
{
     control.DropDownBox();
}

If the vendor does not outwardly offer these options, then you need to ask them directly. You may have to wait for a new release to get the features or you may have to inherit the control and try hooking into its' base control object events.

_____________________________________________
_{Of all the senses I could possibly lose,
It is most often the one called 'common' that gets lost.}

Ruchi Gupta8-Mar-04 9:08

Ruchi Gupta

8-Mar-04 9:08

Hi All,

I have a ContextMenu. At the leaf node user want to see both the Code and description as follows.

1 - Employee
2 - Customer
3 - Administrator

Is there any property similar to ValueMember (as we have in ComboBox) in MenuItem. I want to be able to get value of code i.e. 1 or 2 or 3 when a leaf node is selected.

Thanks
Ruchi

Heath Stewart8-Mar-04 10:31

8-Mar-04 10:31

You mean like MenuItem.Index?

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Ruchi Gupta8-Mar-04 10:36

Ruchi Gupta

8-Mar-04 10:36

No, not index.

code and Description can be

167 - Employee
256 - Administrator
234 - Customer

So what I am displaying on the leaf node in above information. But when any of above node is selected, I want to get 167 or 256 or 234 as the value. LIke in combobox, we set Display member and valuemember.

Rigth now I am tokenizing the leaf node upon selection as -

dealNo = dealNo.Substring(0, dealNo.IndexOf("-", 0));

to get the reqired piece of information.

Heath Stewart8-Mar-04 10:39

8-Mar-04 10:39

The MenuItem isn't a data-binding control like the ComboBox. What you see is what you get - there is nothing "behind the scenes" that track information like this. That doesn't mean you can't add it, though. Extend the MenuItem class with your own and add a property to hold this information. In the MenuItem.Click handler elsewhere in your code, you cast the sender (the first parameter) to your MenuItem derivative class and get the value of that property.

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