Solved

Help needed with methode

Posted on 2012-03-14
3
262 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
  • 2
3 Comments
 
LVL 9

Accepted Solution

by:
lojk earned 500 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

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

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

This document covers how to connect to SQL Server and browse its contents.  It is meant for those new to Visual Studio and/or working with Microsoft SQL Server.  It is not a guide to building SQL Server database connections in your code.  This is mo…
Wouldn’t it be nice if you could test whether an element is contained in an array by using a Contains method just like the one available on List objects? Wouldn’t it be good if you could write code like this? (CODE) In .NET 3.5, this is possible…
This tutorial gives a high-level tour of the interface of Marketo (a marketing automation tool to help businesses track and engage prospective customers and drive them to purchase). You will see the main areas including Marketing Activities, Design …
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.

810 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