Number of lines in Mobile TextArea

How can I calculate the number of lines in a Flex Mobile TextArea?

Hi Friend,
Try the below code, might be this would be helpful to you.
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark" title="HomeView"
        >
    <fx:Script>
        <![CDATA[
            import spark.events.TextOperationEvent;
            [Bindable]
            protected static var lineCount:uint = 0;
            protected function richEdTxt_changeHandler(evt:TextOperationEvent):void {
                lineCount = richEdTxt.mx_internal::textContainerManager.numLines;
        ]]>
    </fx:Script>
    <s:Panel id="pnl"
             title="Total Lines: {lineCount}"
             horizontalCenter="0" verticalCenter="0">
        <s:RichEditableText id="richEdTxt"
                            widthInChars="20" heightInLines="10"
                            change="richEdTxt_changeHandler(event);" />
    </s:Panel>
</s:View>
Regards,
Bharat Patel

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TextArea - Is it possible to get the number of lines?

I was wondering if there's any way to know how many lines of text a textarea has. And also, if it'd be possible to listen for number of lines changes. I'm trying to develop a component which displays just one line at first, and then starts to grow as necessary, as the number of written lines increase.
Let me know if it's not clear enough.
Thanks in advance.

Hi,
May be what i am going to propose you is not the answer for your quesion. :P, but i have the same requirement and I achieved it in the following way. :)
I wrapped by TextArea with a StackPane, and before adding the text area into the StackPane i added a Label, whose wrapText is set to true, and binded the prefWidth and text property with TextArea , as below.
this.label =new Label();
this.label.setWrapText(true);
this.label.prefWidthProperty().bind(this.textArea.widthProperty());
this.label.textProperty().bind(this.textArea.textProperty());That's it !!! It worked for me ;)
Below is the complete code of this new customised control ;)
ScrollFreeTextArea textArea= new ScrollFreeTextArea();And the complete class :
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.GroupBuilder;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.layout.StackPane;
import javafx.scene.layout.StackPaneBuilder;
public class ScrollFreeTextArea extends StackPane{
     private Label label;
     private StackPane lblContainer ;
     private TextArea textArea;
     private Character NEW_LINE_CHAR = new Character((char)10);
     private final double NEW_LINE_HEIGHT = 18D;
     private final double TOP_PADDING = 3D;
     private final double BOTTOM_PADDING = 6D;
     public ScrollFreeTextArea(){
          super();
          configure();
     public ScrollFreeTextArea(String text){
          super();
          configure();
          textArea.setText(text);
     private void configure(){
          setAlignment(Pos.TOP_LEFT);
          this.textArea =new TextArea();
          this.textArea.setWrapText(true);
          this.textArea.getStyleClass().add("scroll-free-text-area");
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          this.label.prefWidthProperty().bind(this.textArea.widthProperty());
          this.label.textProperty().bind(this.textArea.textProperty());
          this.lblContainer = StackPaneBuilder.create()
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               textArea.setMinHeight(label.getHeight() + TOP_PADDING + BOTTOM_PADDING);
}I hope you got the basic trick that I am doing here. I hope this can help you.
Happy Coding :)
Regards,
Sai Pradeep Dandem.

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Example,
This is a
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Also, in order to split the text according to multiple separators in only one call, it is necessary to use a regular expression instead of a string.
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Try that, and post again if you get stuck.
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How can I find out the number of lines in a text file?

How can I find out the number of lines in a text file?

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How do you find the number of lines in a file?

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That depends. How do you define a line? Is it a specific number of
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Hi canddski,
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I wrote the following some while ago. It assumes that a line is terminated by '\n' but it should be easy to adapt.
import java.io.*;
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        Reader reader = new InputStreamReader(new FileInputStream(file), encoding);
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    public static void main(String[] args)
        try
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How to get the number of lines of a file?

Folks:
Is there a way to get the number of lines of a text file? I don't know if there is an existing method to do that.
Thanks a lot.

HI
I found some solution
other than increment loop and all
here is the code it might helpful to u
//returns the number of lines in a file
//author : Ravindra S
//Symphony software Hyderabad
try
RandomAccessFile randFile = new RandomAccessFile(csvFile,"r");
long lastRec=randFile.length();
randFile.close();
FileReader fileRead = new FileReader(csvFile);
LineNumberReader lineRead = new LineNumberReader(fileRead);
lineRead.skip(lastRec);
countRec=lineRead.getLineNumber()-1;
fileRead.close();
lineRead.close();
catch(IOException e)

Number of lines in Mobile TextArea

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