My jaw still aches remembering the pain of dropping to the floor when Visual Studio refused to compile
It complains in no uncertain terms. In fact, it drives the message home by repeating the message, albeit with a different word order.
Operator ‘=’ cannot be applied to operands of type ‘string’
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Moving from Delphi to C# is fun most of the time.
Discovering stuff I can do in C# that is impossible, or (very) time consuming, in Delphi is fun. Discovering that stuff I take for granted in Delphi – i.e. metaclasses (officially “class references”),
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Every so often this comes up: I have an interface. It has methods. I should unit test everything. So I should test this interface. But how? It doesn’t have an implementation…?!
Right…
Well…
Hmm…
No. Of course you don’t test the interface.
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Did you read Name Value Pairs in ComboBoxes and Kinfolk?
Too long?
Yeah. You’re right. I realized that after I published it.
Here’s the TL;DR version of it.
You have been tasked with adding a simple ComboBox to a form and load its list of values from a configuration file containing a list of name value pairs.
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A couple of hours after I published this, I realized that it was very long. If you just want the punch line then check out
TL;DR version of Name Value Pairs in ComboBoxes and Kinfolk
You have been tasked with adding a simple ComboBox to a form and load its list of values from a configuration file containing a list of name value pairs.
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Are you maintaining an application that has been around for more than 5, 6 years? Using a pre-Unicode Delphi version (pre D2009) to do so?
Would you like to switch to a newer Delphi version to gain the advantages of Unicode, generics, extended RTTI, 64 bit, the REST client library and other such niceties?
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Your application allows your users to create and save files. You help your users by remembering where the last file was stored they don’t have to navigate their entire folder structure every time they want to save a file.
So far so good.
First time experience
To make you application even better,
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Boy, do I feel stupid!
As David pointed out in the comments to take one of this subject, there is a much easier way to get all the instantiated forms at run time:
Forgot all about Screen.CustomForms existence. And it’s been there since at least D5…
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For reasons quite unfathomable by me, you would like to get your hands on a list of all forms in your project. [1]
But wait. Do you want this at design time? Or at run time?
Oh, at run time. Pfffew. Ok. I can do that.
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Can’t get a ListView to display the values from your database in columns properly?
You want to display information from your database. You would like it to be displayed in a list with columns. A ListView can do that.
Should be as easy as 1-2-3.
Just set up a query,
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