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I'm new in delphi and i thought it might be safer to swap object names in loop instead of copying whole block for each object. So I need to use variable name as some objects name.
Here is an example of what i tried and what i am trying to do.
Var
YazGrid: TStringGrid;
I defined a variable for grid name as above and i am trying to use like this:
Some Loop
begin
if a_variable>=10 then
YazGrid:=form1.StringGrid1
else
YazGrid:=form1.StringGrid2;
YazGrid.Cells[1,i] := 'SomeText';
End;
As the result- it comes out with the "Access Violation" error. How should i do this?
Thanks in advance.
Everything looks right in your code.
Make sure that variable "i" in bound. Anyway, even if "i" out-of-bound, this shound't raise Access Violation.
Tested with Delphi XE2 and XE4.
I suppose that error occure in code that not showed in your sample.
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My cxBarEditItem1 has properties : combobox.
However when I begin to write :
cxBarEditItem1.Properties.Items.Add ...
Delphi shows me it's an error. It seems 'items' do not exist.
What am I doing wrong ? How can I fill it ?
The compiler doesn't know that cxBarEditItem1.Properties refers to a ComboBox at runtime. You have to cast to tell it:
Assert(cxBarEditItem1.Properties is TcxComboBoxProperties);
TcxComboBoxProperties(cxBarEditItem1.Properties).Items.Add('Hello');
I don't have the DevExpress Expressbar controls... But I have downloaded the help file for the components. I can recommend the help, it's very useful.
From what I can see, you really want to put a TcxBarCombo on your bar, which does have an items property.
I think you have dropped a non-ribbon style Combo on to your ribbon, which may be a separate component on your form... Maybe try clicking on the combo and seeing what the component name is in the object inspector, then use that name to add items to the control.
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[ERROR] Lua is unable to understand file "darkrp_customthings/jobs.lua" because its author made a mistake around line number 21.
The best help I can give you is this:
There is an opening '(' bracket at line 20, but this bracket is never closed or not closed in time. It was expected to be closed before the '=' at line 21.
Can someone help correct the errors in my code?
The code:
https://www.dropbox.com/s/o2w9jx2kqefu2n0/job%20.txt?dl=0
You wrote something like this (simplified):
TEAM_TERRORIST = AddExtraTeam(
"Terrorist",
customCheck = function(ply) end
)
This is not valid syntax in Lua, where there are no named parameters.
Maybe the AddExtraTeam function expects a table instead? E.g. this is valid syntax:
TEAM_TERRORIST = AddExtraTeam{
"Terrorist",
customCheck = function(ply) end
}
Not sure this is the right solution though, I don't know DarkRP.
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How can I play 20 wma files on delphi using Tmediaplayer, one after another in a continues loop until the program is closed ? I already tried using a timer for each file , but I keep failing. I have 20 songs that I'd like to play in the background while the rest of the program runs.
Put the filenames into a list. Set the TMediaPlayer.FileName property to the first filename in the list, set the TMediaPlayer.Notify property to true, and call TMediaPlayer.Play(). When the TMediaPlayer.OnNotify event signals playback has finished, you can assign the next filename in the list to TMediaPlayer.FileName, reset TMediaPlayer.Notify to true, and call TMediaPlayer.Play(). Repeat for each filename in the list. One you have played the last filename, start over with the first filename.
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I'm collecting size information from my users, so when they view the main products page, they only see products that are available in their size. I think the solution involves product scopes, but I'm not sure how to implement it. Anyone have any ideas on the best way to implement this?
The logic to find the products to display is generally done by:
https://github.com/spree/spree/blob/v2.1.1/core/lib/spree/core/controller_helpers/search.rb#L5-L9
An example of it being used is here:
https://github.com/spree/spree/blob/v2.1.1/frontend/app/controllers/spree/products_controller.rb#L10
By default, it will use this code to find the products
https://github.com/spree/spree/blob/v2.1.1/core/lib/spree/core/search/base.rb#L15-L24
In order to override this, you can override the searcher_class configuration:
https://github.com/spree/spree/blob/v2.1.1/core/app/models/spree/app_configuration.rb#L101-L108
The searcher class has access to the current user, and I'm assuming you've modified the current user to contain their size.
You can do a crazy-ish query to get all products of a certain size. For example:
Spree::Product.joins(:variants_including_master => :option_values)
.where('spree_option_values.presentation = ? AND
spree_option_values.option_type_id = ?', 'XL',
Spree::OptionType.find_by_name('tshirt-size').id)
Replace 'XL' with current_user.size or whatever you have setup, and you should have things working.
Hope that gives you a good place to start.
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x = {"utf8"=>"✓",
"authenticity_token"=>"xxxxxxxxxxxxx=",
"file"=>#>,
"unit_id"=>"00001"}
I have ruby data structure like this and um trying to get the value of #original_filename field
I tried something like this
x["#original_filename"]
and
x[:original_filename]
But both has thrown me an error . How to access that specified element value?
looks like you're trying to upload a file; from your tiny screenshot maybe you're referring to params[:file].original_filename?
The parameter ["file"] is a ActionDispatch::Http::UploadedFile, which has the original_filename member variable, as you can see in the params displayed in your image or here:
http://api.rubyonrails.org/classes/ActionDispatch/Http/UploadedFile.html
So, the way to get this value would be x["file"].original_filename