Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

Help needed with methode

Posted on 2012-03-14
3
Medium Priority
?
270 Views
Last Modified: 2012-03-14
Hi,
In my methode CustomColumnDisplayText I tried to call
for the function checktype. The purpose of this function
is to check if a string contains a comma (,) or a (.) if so then
false otherwise true. But I don't know how to call for this
function in the customcolumndisplay-event. And the declaration
in the customcolumndisplay-event to devide and multilpy the
value isn't correct either.

 private void gridView1_CustomColumnDisplayText(object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDisplayTextEventArgs e)
        {
            if (e.Column.FieldName == "Value")
            {
                if ((Properties.Settings.Default.IsMGDL == false) || (CheckType = true))
                {
                    e.DisplayText = (e.Value / 18).ToString();
                }
                else if ((Properties.Settings.Default.IsMGDL == true) || (CheckType = false))
                {
                    e.DisplayText = (e.Value * 18).ToString();
                }
            }

        }
        //*-------------------------------------------------------------*//
        static bool CheckType(string value)
        {
            return value.Contains(",") || value.Contains(".");
        }
        //*-------------------------------------------------------------*//

Open in new window

     

ERRORS:

1. Cannot assign to 'CheckType' because it is a 'method group'
2. Operator '/' cannot be applied to operands of type 'object' and 'int'      
3. Cannot assign to 'CheckType' because it is a 'method group'
4. Operator '*' cannot be applied to operands of type 'object' and 'int'      


Who can help me?

Peter
0
Comment
Question by:peterkiers
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 9

Accepted Solution

by:
lojk earned 2000 total points
ID: 37719593
Part 1

I'm guessing that 'CheckType' used to be a procedural scope boolean value and then got moved to a function?

The answer is simpler than it looks and is a common mistake (that I see and make in C#)

if ((Properties.Settings.Default.IsMGDL == false) || (CheckType = true))
                {
                    e.DisplayText = (e.Value / 18).ToString();
                }

Checktype is a Method with parameters but you are calling it as a non-invokable member(property). Also you are using an assignment equals, not a comparison equals.

probably should say something like

if ((Properties.Settings.Default.IsMGDL == false) || (CheckType (SOMESTRINGVALUE) == true))
                {
                 //see part 2
                }



Part 2

                {
                    e.DisplayText = (e.Value / 18).ToString();
                }
 
I am not familiar with the DevExpress control set but I am presume that e.Value is of type object - you cant mulitply an object by an integer, you have to type cast it first.

Something like this should do it..

                {
                 int eValue = Convert.ToInt(e.Value ); // I think you know what this should actually say!
                    e.DisplayText = (eValue / 18).ToString();
                }


Hows that?
0
 
LVL 1

Author Comment

by:peterkiers
ID: 37719636
Super you have helped me alot.

Thanks.


500 p's comming your way...


Peter Kiers
0
 
LVL 9

Expert Comment

by:lojk
ID: 37719662
You are welcome Peter.

Gotta love that stupid "Cannot assign to 'CheckType' because it is a 'method group'" error.

Why they can't just say 'you forgot the brackets, dummy' is beyond me ;-)

Have a good day.

Alan
0

Featured Post

Veeam Disaster Recovery in Microsoft Azure

Veeam PN for Microsoft Azure is a FREE solution designed to simplify and automate the setup of a DR site in Microsoft Azure using lightweight software-defined networking. It reduces the complexity of VPN deployments and is designed for businesses of ALL sizes.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In my previous article (http://www.experts-exchange.com/Programming/Languages/.NET/.NET_Framework_3.x/A_4362-Serialization-in-NET-1.html) we saw the basics of serialization and how types/objects can be serialized to Binary format. In this blog we wi…
For those of you who don't follow the news, or just happen to live under rocks, Microsoft Research released a beta SDK (http://www.microsoft.com/en-us/download/details.aspx?id=27876) for the Xbox 360 Kinect. If you don't know what a Kinect is (http:…
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…
In a question here at Experts Exchange (https://www.experts-exchange.com/questions/29062564/Adobe-acrobat-reader-DC.html), a member asked how to create a signature in Adobe Acrobat Reader DC (the free Reader product, not the paid, full Acrobat produ…

610 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question