This helps you see what is required, but the declarations should be generated from the node types in the sample XML file. Delete these experimental lines from the template. To read the XML file and generate class declarations, replace the template content with the following template code:.
These delimiters bracket a fragment of the program code that generates the text. When you are writing a template that generates source code for your application, you are dealing with two separate program texts. The program inside the code block delimiters runs every time that you save the template or move the focus to another window.
The text that it generates, which appears outside the delimiters, is copied to the generated file and becomes part of your application code.
The list of assemblies seen by the template is separate from the list of References in the application project. Many text templates follow a pattern in which the first part of the template reads the source file, and the second part generates the template.
We need to read all of the example file to summarize the node types that it contains, and then generate the class declarations. A class feature control block is a block in which you can define auxiliary methods. If you prefer class names to begin with an uppercase letter, you can replace the last part of the template with the following template code:. More details such as properties for the child nodes, attributes, and inner text can be added using the same approach.
The template can use this to obtain the location of the project files, to avoid using an absolute file path in the template code. In the main of the console application, the following lines will execute the test method.
Press F5 to run the program in debug mode:. The application can now be written in strongly-typed style, using the generated classes instead of using generic XML code. When the XML schema changes, new classes can easily be generated. The compiler will tell the developer where the application code must be updated.
Code generation is the creation of part of the source code of your application from a model. The model contains information in a form suited to the application domain, and may change over the lifetime of the application. Strong typing is one benefit of code generation. If there are only a few keywords you can have them on a line like this:. Or you could use Regex. Read this article on codeproject to view which string replacement option is fastest for you.
A very simple regex-based solution. Here's how you do it. First, create a type that defines the stuff you want to inject into your message. Note: I'm only going to illustrate this with the User part of your template It allows formatting the replacement inline as well. If you need something very powerful but really not the simplest way you can host ASP. NET and use it as your templating engine. If you are coding in VB. NET in the same project as C code. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. What's a good way of doing string templating in. Ask Question. Asked 12 years, 9 months ago. Active 4 months ago. Viewed 65k times. Simon Simon There are some excellent suggestions in the answers to this question: stackoverflow. Hey, this is now a language feature, I've added an answer showing that. Add a comment. Active Oldest Votes.
Benjamin Gruenbaum Benjamin Gruenbaum k 82 82 gold badges silver badges bronze badges. Note that this is a compile-time substitution, essentially sugar around String. Format , and doesn't help if you are obtaining the template string at run time. You can just extract the code to a function and then pass the items inside as parameters - this is as expressive as other templating techniques. DaveRandom: the docs say otherwise: The interpolated string is evaluated each time the code with the interpolated string executes.
This allows you to separate the definition and evaluation of an interpolated string. Or am I reading this wrong? Martijn sorry that was poorly phrased, what I meant is that the template itself is defined at compile-time, and it's not possible to e. The compiler effectively generates a string. Whenever you edit the XML file during development, the text templates regenerate part of the application code.
One of the templates might resemble the following example:. As another example, the input could be a diagram of workflow in a business activity.
When the users change their business workflow, or when you start work with new users who have a different workflow, it's easy to regenerate the code to fit the new model. The term model is sometimes used to describe data read by one or more templates. The model can be in any format, in any kind of file or database.
Design-time templates are quicker and more reliable when changing the configuration as the requirements change. Typically, input is defined in terms of business requirements, as in the workflow example. Design-time templates are useful tools in an agile development process. To create a design-time template, add a Text Template file to your project. Skip to main content. NewLine, lines ; Edit : if you have both header and footer in one file not a good practice you can use Select.
NewLine, lines ;. Dmitry Bychenko Dmitry Bychenko k 17 17 gold badges silver badges bronze badges. Tim: At that case you can slightly modify the Linq, e. It can be used for all text files. CodeTherapist CodeTherapist 2, 12 12 silver badges 24 24 bronze badges. Sign up or log in Sign up using Google.
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