I have created web application and textbox as a textarea. I am using javascript for validation. When I enter value in text box so it should be number not alphabet I have use textmode is multiple line.
My problem is that how I get multiple value from textbox and store in array in javascript and check each value is number or not. I am using the web form. Please help me.
You can get the value from a textarea like
var txtvalue = document.getElementById("txtareaid").value
and if are using a separator then something like
var txtvaluearray = document.getElementById("txtareaid").value.split(';')
will get you all the values in an array if the seperator is ;
Edit
As per your update you can use \n as the separator and as pointed by #Sohnee you can do the validation.
As addition to rahul:
If you want the values in the textarea seperated by line, you can use \r\n as the splitter.
This is a starter for ten.
var textValues = document.getElementById("mytextarea").value.split("\n");
for (var i = 0; i < textValues.length; i++) {
if (isNaN(textValues[i])) {
alert(textValues[i] + " is not a number.";
}
}
Related
in my flex application im retrieving a data from database.....
(ie) price as decimal(18,4)...
Now i need to display the retrieved value in an flex text box
textbox name is price.text...
obj is object name...
i have used the following in code...it not works...
price.text = obj.Price.toPrecision((18,4));
.kindly give ur suggestions folks....
Take a look at the NumberFormatter. To follow your example, you would declare a NumberFormatter like so:
<mx:NumberFormatter
id="myNumberFormatter"
precision="4"/>
or in Actionscript:
var myNumberFormatter:NumberFormatter = new NumberFormatter;
myNumberFormatter.precision = 4;
Then use the NumberFormatter's format function on your value:
price.text = myNumberFormatter.format(obj.Price);
I have a quick question about JQuery. I have dynamically generated paragraphs with id's that are incremented. I would like to take information from that page and bring it to my main page. Unfortunately I am unable to read the dynamically generated paragraph IDs to get the values. I am trying this:
var Name = ((data).find("#Name" + id).text());
The ASP.NET code goes like this:
Dim intI As Integer = 0
For Each Item As cItem in alProducts1
Dim pName As New System.Web.UI.HtmlControls.HtmlGenericControl("p")
pName.id = "Name" & intI.toString() pName.InnerText = Item.Name controls.Add(pName) intI += 1
Next
Those name values are the values I want...Name1, name2, name3 and I want to get them individually to put in their own textbox... I'm taking the values from the ASP.NET webpage and putting them into an AJAX page.
Your question is not clear about your exact requirement but you can get the IDs of elements with attr method of jQuery, here is an example:
alert($('selector').attr('id'));
You want to select all the elements with the incrementing ids, right?
// this will select all the elements
// which id starts with 'Name'
(data).find("[id^=Name]")
Thanks for the help everyone. I found the solution today however:
var Name = ($(data).find('#Name' + id.toString()).text());
I forgot the .toString() part and that seems to have made the difference.
i have a page in which i am displaying the name of all the users i want to filter their names on the basis of first character for that i want to show A B C D ....X Y Z filters on the top on clicking of which it will filter the names accordingly my problem is not the query part but how to add these letters do i have to add 26 link buttons separately or there is some work around for example you might have seen such type of behavior in some music sites for filtering the songs with starting character.
These are few useful links how to do alphabetical paging
1. http://www.highoncoding.com/Articles/209_GridView_Alphabet_Paging.aspx
2. http://aspdotnetcodebook.blogspot.com/2008/03/how-to-add-alphabet-paging-in-gridview.html
Use ASCII characters codes to do this, for example:
var letters = new List<string>()
for(int i = 65; i < 91; i++)
letters.Add(Convert.ToChar(i).ToString());
Display it by adding links to page:
foreach(letter in letters)
{
var hyperlink = new Hyperlink()
{
NavigateUrl = string.Format("Filter.aspx?letter={0}", letter),
Text = letter
}
Page.Controls.Add(hyperlink);
}
Of course instead of Page you can use any other container you want, you just need to add those hyperlinks to controls collection.
Also take care to run this code in proper method, for example by overriding CreateChildControls method.
Regards
Is there a way to restrict the number
of characters in the Flex Rich Text Editor?
I guess there should be, since it's possible
in a textarea. So, if I could get hold
of the textarea contained in the rich
text editor, I would be able to do it
I think this would be fairly easy in actionscript, although I'm not exactly sure how one would do it in mxml. It appears that there are two children that are contained in the RichTextEditor, one of them being TextArea. According to the documentation (http://livedocs.adobe.com/flex/3/langref/mx/controls/RichTextEditor.html#propertySummary), you can access the subcontrols like so:
myRTE.toolBar2.setStyle("backgroundColor", 0xCC6633);
With myRTE being the instance of your text editor. So my guess would be something like this would work:
myRTE.textArea.maxChars = 125;
With 125 being the number a characters you would want restricted to.
i just ran into this.
setting your maxChars on the textArea will provide a limit to the text area, but that won't be representative of the number of characters the user can type.
as the user is typing, markup is added behind the scenes, and that greatly increases the char count.
for example, if i type the letter 'a' into a RichTextEditor, i get a char count of 142 and this htmlText:
<TEXTFORMAT LEADING="2"><P ALIGN="LEFT"><FONT FACE="Verdana" SIZE="10" COLOR="#0B333C" LETTERSPACING="0" KERNING="0">a</FONT></P></TEXTFORMAT>
i could not see a straightforward way to get a proper maxChar to work out of the box, so i extended RichTextEditor and gave it a maxChar. if maxChar > 0, i added a listener to "change" and did something like this in the event handler:
protected function handleTextChange(event:Event) : void
{
var htmlCount:int = htmlText.length;
// if we're within limits, ensure we reset
if (htmlCount < maxChars)
{
textArea.maxChars = 0;
this.errorString = null;
}
// otherwise, produce an error string and set the component so the user
// can't keep typing.
else
{
var textCount:int = textArea.text.length;
textArea.maxChars = textCount;
var msg:String = "Maximum character count exceeded. " +
"You are using " + htmlCount + " of " + maxChars + " characters.";
this.errorString = msg;
}
}
the idea is to apply a maxChars to the text area only when in the error state, so the user cannot type anything additional and will be prompted to erase some chars. once we leave the error state, we need to set the textArea.maxChars to zero so they can continue.
I have 2 textbox in my asp.net page and also have one hiddenfield in my asp.net page , my hiddenfield will always have numeric value like 123.00 , and in my one textbox also I will always have numeric value like 20.00 now I want to add this hiddenfield value and textbox value and display it into second textbox thru javascript
I wrote the following code to do this
var amt = document.getElementById("txtsecond");
var hiddenamt = document.getElementById("AmtHidden").value
var fee = document.getElementById("txtFirst").value;
amt.value = hiddenamt + fee;
this should give me result like 123.00+20.00 = 143.00 but this is concatnating hiddenamt value and fee value and giving me result like 12320.00 in my first textbox
can anybody suggest me what is wrong in my code and what is the right way to get desired value
amt.value = parseFloat(hiddenamt) + parseFloat(fee);
the value of an input is just a string - convert to float parseFloat(foo) in JS and you'll be fine
edited to make float as I notice it's probably important for you
Textboxes are strings, you need to convert from a String to a Number:
var hiddenamt = parseFloat(document.getElementById("AmtHidden").value);
var fee = parseFloat(document.getElementById("txtFirst").value);
Eric
you should parse the values to decimals first:
decimal amt, hiddenamt, fee;
Decimal.TryParse(document.getElementById("txtsecond"),out amt);
Decimal.TryParse(document.getElementById("txtfirst"),out fee);
hiddenamt = amt + fee;