14 replies to this topic

[Raven]

Hello! I am new here so I don't know if i posted this right.

So, I downloaded NextGrid and I have a little problem: I don't know how to detect when a user double clicks on a row. I want that text in that rows to be placed in a variable or something so i can edit it.

If you can help me, please add a reply.
Thank You

[deonvn]

Hi Raven

Try the following in the grid's doubleclick event:

CODE

procedure TForm1.NextGrid1DblClick(Sender: TObject);
var
  s: string;
begin
  //to get the text
  s := NextGrid1.Cells[0,NextGrid1.SelectedRow].AsString;
  //to set the text
  NextGrid1.Cells[0,NextGrid1.SelectedRow].AsString := s;
end;

(Replace "0" with column index for which you want the value)

[Raven]

Thanks a lot, deonvn...Your code helped me a lot!!
If i have any questios i'll post them here

[Raven]

So i did this:

CODE

procedure TForm1.NextGrid1DblClick(Sender: TObject);
var
  s: string;
  i:integer;
begin
  i:=NextGrid1.SelectedRow;
  s := NextGrid1.Cells[0,i]; ShowMessage(s);
end;

but when i double click on the grid nothing happens. What did I do wrong?
I must say that I am a beginner in OOP

[deonvn]

s := NextGrid1.Cells[0,i].AsString

Actually you don't even need the variables. You could just say:

ShowMessage(NextGrid1.Cells[0,NextGrid1.SelectedRow].AsString);

[Raven]

when i try your code I get this error:

[Error]Myfilename.pas[75]: Record, object or class type required

What is to be done?

[deonvn]

Sorry

Try using Cell instead of Cells

[Boki (Berg)]

Hello,

Yes, use Cell[x,y]. Thank you deonvn for helping

regards

[Raven]

CODE

procedure TForm1.NextGrid1DblClick(Sender: TObject);
var
  s: string;
  i:integer;
begin
  //to get the text
  s := NextGrid1.Cell[0,NextGrid1.SelectedRow].AsString;
  ShowMessage(s);

end;
//End Next Grid1.DoubleClick

and it still doesn't work

[deonvn]

Hi Raven

Did you add any rows to your grid (using AddRow)?

If so, does the first column of the row you are double-clicking on have any text in it?

[Raven]

1.I didn't use addRow. I used

CODE

NextGrid1.Addcells([a,b,c,d])

2.Yes. It looks like in this image
 berccomp.PNG   3.25KB   47 downloads

[deonvn]

It should work fine....

I have attached a sample with AddCells and DoubleClick.

Attached Files

•  DoubleClickTest.zip   6.54KB   10 downloads
•  DoubleClickTest.zip   6.54KB   6 downloads

[Raven]

When i try to compile it says:

CODE

[Fatal Error] Unit1.pas(7): File not found: 'NxCollection.dcu'

I'm using Delphi 7.
And when i try to compile without nxcollection.dcu it says "Could not create output file d:\projects\project1.exe"
but this project is stored in d:\downloads\doubleclick\

[Boki (Berg)]

Hello,

If you are using version without sources, simply remove NxCollection from unit from uses section.

regards

[deonvn]

To fix the output path in the demo:

From the main menu, select Project --> Options.

On the Directories and Conditionals tab, change the output path to a path that exists (or make it blank).