Find and Replace in Document Editor Component
19 Dec 202213 minutes to read
The document editor component searches a portion of text in the document through a built-in interface called OptionsPane
or rich APIs. When used in combination with selection performs various operations on the search results like replacing it with some other text, highlighting it, making it bolder, and more.
Options pane
This provides the options to search for a portion of text in the document. After search operation is completed, the search results will be displayed in a list and options to navigate between them. The current occurrence of matched text or all occurrences with another text can be replaced by switching to Replace
tab. This pane is opened using the keyboard shortcut CTRL+F
.
<ejs-button id="showhidepane">Show hide pane</ejs-button>
<div id="documenteditor" style="width:100%;height:100%" >
<ejs-documenteditor isReadOnly=false enableEditor=true enableSelection=true enableSearch=true enableOptionsPane=true id="container"></ejs-documenteditor>
</div>
<script>
var documenteditor;
document.addEventListener('DOMContentLoaded', function () {
documenteditor = document.getElementById("container").ej2_instances[0];
var sfdt = {
"sections": [
{
"blocks": [
{
"inlines": [
{
"characterFormat": {
"bold": true,
"italic": true
},
"text": "Adventure Works Cycles, the fictitious company on which the AdventureWorks sample databases are based, is a large, multinational manufacturing company. The company manufactures and sells metal and composite bicycles to North American, European and Asian commercial markets. While its base operation is located in Bothell, Washington with 290 employees, several regional sales teams are located throughout their market base."
}
]
}
]
}
]
};
documenteditor.open(JSON.stringify(sfdt));
document.getElementById('showhidepane').addEventListener('click', function () {
documenteditor.showOptionsPane();
});
});
</script>
You can close the options pane by pressing Esc
key.
Search
The Search
module of Document Editor exposes the following APIs:
API Name | Type | Description |
---|---|---|
findAll() |
Method | Searches for specified text in the whole document and highlights it with yellow. |
searchResults |
Property | This is an instance of SearchResults . |
find() |
Method | Find immediate occurrence of specified text from cursor position in the document and highlights it with yellow. |
Find the immediate occurrence in the document
Using find()
method, you can find the immediate occurrence of specified text from current cursor position in the document.
documenteditor.search.find('Some text', 'None');
NOTE
Second parameter is optional parameter and it denotes find Options. Possible values of find options are
'None' |'WholeWord' |'CaseSensitive'| 'CaseSensitiveWholeWord'
.
Find all the occurrences in the document
Using findAll()
method, you can find all the occurrences of specified text in the whole document and highlight it with yellow.
documenteditor.search.findAll('Some text', 'None');
NOTE
Second parameter is optional parameter and it denotes to find Options. Possible values of find options are
'None' |'WholeWord' |'CaseSensitive'| 'CaseSensitiveWholeWord'
.
Search results
The SearchResults
class provides information about the search results after search operation is completed that can be identified using the searchResultsChange
event. This will expose the following APIs:
API Name | Type | Description |
---|---|---|
length |
Property | Returns the total number of results found on the search. |
index |
Property | Returns the index of selected search result. You can change the value for this property to move the selection. |
replaceAll() |
Method | Replaces all the occurrences with specified text. |
clear() |
Method | Clears the search result. |
Replace all the occurrences
Using replaceAll
, you can replace all the occurrences with specified text.
documentEditor.search.findAll ('Some text');
// Replace all the searched text with word 'Mike'
documentEditor.search.searchResults.replaceAll("Mike");
Replace
Using insertText
, you can replace the current searched text with specified text and it replaces single occurrence.
NOTE
Note: This
insertText
API accepts following control characters.
* New line characters (“\r”, “\r\n”, “\n”) - Inserts a new paragraph and appends the remaining text to the new paragraph.
* Line break character (“\v”) - Moves the remaining text to start in new line.
* Tab character (“\t”) - Allocates a tab space and continue the next character.
container.documentEditor.search.findAll('works');
let searchLength: number = container.documentEditor.search.searchResults.length;
for (let i = 0; i < searchLength; i++) {
// It will move selection to specific searched index,move to each occurrence one by one
container.documentEditor.search.searchResults.index = i;
// Replace it with some text
container.documentEditor.editor.insertText('Hello');
}
container.documentEditor.search.searchResults.clear();
SearchResultsChange event
DocumentEditor
exposes the searchResultsChange’
event that will be triggered whenever search results are changed. Consider the following scenarios:
- A search operation is completed with some results.
- The results are replaced with some other text, since it will be cleared automatically.
- The results are cleared explicitly.
documenteditor.searchResultsChange = function() {
};
Customize find and replace
Using the exposed APIs, you can customize the find and replace functionality in your application.
<ejs-button id="replace_all">Replace All</ejs-button>
<div id="documenteditor" style="width:100%;height:100%" >
<ejs-documenteditor isReadOnly=false enableEditor=true enableSelection=true enableSearch=true id="container"></ejs-documenteditor>
</div>
<script>
var documenteditor;
document.addEventListener('DOMContentLoaded', function () {
documenteditor = document.getElementById("container").ej2_instances[0];
var sfdt = {
"sections": [
{
"blocks": [
{
"inlines": [
{
"characterFormat": {
"bold": true,
"italic": true
},
"text": "Adventure Works Cycles, the fictitious company on which the AdventureWorks sample databases are based, is a large, multinational manufacturing company. The company manufactures and sells metal and composite bicycles to North American, European and Asian commercial markets. While its base operation is located in Bothell, Washington with 290 employees, several regional sales teams are located throughout their market base."
}
]
}
]
}
]
};
documenteditor.open(JSON.stringify(sfdt));
document.getElementById('replace_all').addEventListener('click', function () {
var textToFind = document.getElementById('find_text').value;
var textToReplace = document.getElementById('replace_text').value;
if (textToFind !== '') {
// Find all the occurences of given text
documenteditor.searchModule.findAll(textToFind);
if (documenteditor.searchModule.searchResults.length > 0) {
// Replace all the occurences of given text
documenteditor.searchModule.searchResults.replaceAll(textToReplace);
}
}
});
});
</script>