Write and edit source code
When you work with code, DataGrip ensures that your work is stress-free. It offers various shortcuts and features to help you add, select, copy, move, edit, fold, find occurrences, and save code.
For navigation inside the editor, refer to Editor basics.
If you do not remember a shortcut for the action you want to use, press to find any action by name.
You can use the same dialog to find classes, files, or symbols. For more information, refer to Searching Everywhere.
In the Files tool window (View | Tool Windows | Files), press to add a file.
To create a new Scratch file, press .
DataGrip creates a temporary file that you can run and debug. For more information, refer to Scratch files.
If a file is read-only, it is marked with the closed lock icon in the status bar, in its editor tab, or in the Files tool window. If a file is writable, it is marked with the open lock icon in the Status bar.
Open file in the editor or select it in the Project tool window.
Do one of the following:
From the main menu, select File | File Properties | Make File Read-only or File | File Properties | Make File Writable.
Click the lock icon in the status bar.
If a read-only status is set by a version control system, it's suggested that you use DataGrip version control integration features. For more information, see Version control.
In the editor, place the caret at the item you want to select and press / to extend or shrink your selection.
For example, in a plain text file, the selection starts within the whole word then extends to the sentence, paragraph, and so on.
If you need just to highlight your braces, place the caret immediately after the block closing brace/bracket or before the block opening brace/bracket.
In the Settings dialog (), go to Editor | Code Style.
Select a language for which you want to configure the indentation.
From the options on the right, on the Tabs and Indents, select the Use tab character for the editor to use tabs when you press , indent, or reformat code. You can also configure the tab size if you need. If you don't select this option, DataGrip will use spaces.
You can use the standard shortcuts to copy and paste any selected code fragment. If nothing is selected, DataGrip automatically copies as is the whole line where the caret is located.
By default, when you paste anything in the editor, DataGrip performs "smart" paste, for example, pasting multiple lines in comments will automatically add the appropriate markers to the lines you are pasting. If you need to paste just plain text, press .
When you copy () or cut () a line without any code selected, the paste action will add the contents of the clipboard to above the current line, not at your caret.
If you want to paste your copied code at the caret, select the Paste at the caret position option in the advanced settings.
Place the caret at a line or a symbol, right-click to open the context menu, select Copy/Paste Special | Copy Reference. When you select the Copy Reference () option, DataGrip creates a reference string that includes the line number of the selected line or symbol. You can press to paste the copied reference anywhere.
DataGrip keeps track of everything you copy to the clipboard. To paste from history, in the editor, from the context menu, select Copy/Paste Special | Paste from History (). In the dialog that opens, select your entry and click Paste.
tip
The default number of items stored in the clipboard history is 100.
When you copy and paste code to the editor, DataGrip displays the hidden (special) characters represented by their Unicode name abbreviation.
In the editor, place the caret at the characters you want to swap.
From the main menu, select Edit | Transpose.
There is no default shortcut for this action. You can assign a custom shortcut.
DataGrip offers several useful shortcuts for manipulating code lines.
note
If you need to undo or redo your changes, press / respectively.
To add a line after the current one, press . DataGrip moves the caret to the next line.
To add a line before the current one, press . DataGrip moves the caret to the previous line.
To duplicate a line, press .
To sort lines alphabetically in the whole file or in a code selection, from the main menu, select Edit | Sort Lines or Edit | Reverse Lines. These actions might be helpful when you work with property files, data sets, text files, log files, and so on. If you need to assign shortcuts to those actions, refer to Configure keyboard shortcuts for more information.
To delete a line, place the caret at the line you need and press .
To join lines, place the caret at the line to which you want to join the other lines and press . Keep pressing the keys until all the needed elements are joined.
You can also join string literals, a field or variable declaration, and a statement. Note that DataGrip checks the code style settings and eliminates unwanted spaces and redundant characters.
To split string literals into two parts, press .
DataGrip splits the string and provides the correct syntax. You can also use the Break string on '\n' intention to split string literals. Press or click to select this intention.
To comment a line of code, place the caret at the appropriate line and press . Press again on the same line to uncomment it.
To move a line up or down, press or respectively.
In the editor, place the caret at the needed statement and press to move a statement up or to move a statement down. DataGrip moves the selected statement performing a syntax check.
note
If moving of the statement is not allowed in the current context, the actions will be disabled.
In the editor, press or from the main menu select Code | Complete Current Statement. DataGrip inserts the required trailing comma automatically in structs, slices, and other composite literals. The caret is moved to the position where you can start typing the next statement.
Move and copy code fragments by dragging them in the editor.
To move a code fragment, select it and drag the selection to the target location.
To copy a code selection, keeping pressed, drag it to the target location.
note
The copy action might not be available in macOS since it can conflict with global OS shortcuts.
The drag functionality is enabled by default. To disable it, in the Settings dialog (), go to Editor | General and clear the Move code fragments with drag-and-drop checkbox in the Mouse Control section.
To toggle between the upper and lower case for the selected code fragment, press .
Note that when you apply the toggle case action to the CamelCase name format, DataGrip converts the name to the lower case.
To comment or uncomment a code fragment, select it and press .
To configure settings for commenting behavior, use options in the Comment Code section, on the Code Generation tab located in the language-specific pages under File | Settings | Editor | Code Style.
Parameter hints show the names of parameters in methods and functions to make your code easier to read. By default, parameter hints are enabled and shown only for values that are literals or function expressions but not for named objects.
Open the Settings dialog () and go to Editor | Inlay Hints.
Expand <required language> under Parameter names.
Specify the context in which you want parameter hints shown by selecting the corresponding checkboxes.
The preview shows how the changes you make in the settings affect the code appearance.
For some methods and functions, DataGrip does not show parameter hints in any context. Click Exclude list... to view these methods and functions, possibly enable parameter hints for them, or add new items to the list.
Folded code fragments are shown as shaded ellipses (). If a folded code fragment contains errors, DataGrip highlights the fragment in red.
To configure the default code folding behavior, in the Settings dialog (), go to Editor | General | Code Folding.
note
If DataGrip changes code in the folded fragment during the code reformatting, the code fragment will be automatically expanded.
To fold or unfold a code fragment, press /. DataGrip folds or unfolds the current code fragment, for example, a single method.
To collapse or expand all code fragments, press /.
DataGrip collapses or expands all fragments within the selection, or, if nothing is selected, all fragments in the current file, for example, all methods in a file.
To collapse or expand code recursively, press /. DataGrip collapses or expands the current fragment and all its subordinate regions within that fragment.
To collapse or expand doc comments in the current file, in the main menu select Code | Folding | Expand doc comments/Collapse doc comments.
To collapse or expand a custom code fragment, select it and press .
You can fold or unfold any manually selected regions in code.
To expand the current fragment and all the nested fragments, press . You can expand the current fragment up to the specified nesting level (from 1 to 5).
To expand all the collapsed fragments in the file, press . You can expand the collapsed fragments up to the specified nesting level (from 1 to 5).
You can collapse or expand code using the Surround With action.
In the editor, select a code fragment and press .
From the popup menu, select <editor-fold...> Comments or region...endregion Comments.
Optionally, specify a description under which the collapsed fragment will be hidden.
To collapse or expand the created region, press .
To navigate to the created custom region, press .
You can disable the code folding outline that appears on the gutter.
In the Settings dialog (), go to Editor | General | Code Folding.
Clear the Show code folding outline checkbox.