maxlength

问题 I wrote the below maxLength restriction on the textarea control and it works fine in IE 9.0 but doesn't work with IE 8.0. <textarea name="commentString" rows="7" maxlength="2000">some data </textarea> How can I set the maxLength so that it works across all browsers? would JQuery have any helper method for this? 回答1: $('textarea').keypress(function() { return $(this).val().length < 50; }); 回答2: It will not working below IE9. Use this code it will work for below IE 9 version. only change

问题 I have a textarea and I am setting maxlength from JS using DOJO library.The code is as follows: <textarea id="ct" rows="50" cols="50"></textarea> In JS the max length is setting up as follows var el = dojo.byId('ct'); if(el) { dojo.attr(el,"maxLength",'2500'); if (!('maxLength' in el)) { var max = el.attributes.maxLength.value; el.onkeypress = function () { if (this.value.length >= max) return false; }; } } I am using the following text to populate textarea. Twitter's character limit is 140.

问题 I have a list <ul> of articles <li> and an event handler on a button. When clicking the button, I aggregate all <li> s ID (integer) using: data.articles = $('#category-articles').sortable('toArray'); // alerts 1298 alert(data.articles.length); $.post(....); On the serverside: <?php // echoes 968 echo sizeof($_POST['articles']); Making it clear: trying to send 1298 items in an array data.articles receiving only the first 968 items in an array $_POST['articles'] Data is getting lost during post

问题 I have an html div element in my application as follows <div id="DivId" contenteditable="true" style="border:1px solid black"></div> I need to limit the number of character that can be typed in the div . Like giving maxlength attribute to textbox how can I do this? Its very helpful if I am able to do it without using javascript or jquery. 回答1: There are some CSS attributes like max-height or max-width which do limit the width for block level elements. So you can code this out like this : <div

问题 i have the table customer with column Name varchar(20), adresse varchar(50), tel varchar(10), etc. how can i select the longest adresse ? SELECT FROM customer WHERE adresse ? 回答1: select top (1) * from customer order by len(adresse) desc; 回答2: You can do it with a subquery: select * from customer where len (adresse) = ( select max (len (adresse)) from customer) The inner query figures out the maximum length over all the adresse columns, and the outer query gives you all the rows that have

问题 I am trying to set a maxlength for the form_textarea() in Codeigniter. I tried the following: <?php $options = array( 'maxlength' => '100' ); ?> <tr> <td><?= form_label('Profiel:');?></td> <td><?= form_textarea('Profiel', $options, $info['Profiel']);?></td> </tr> When I edit my form to edit the text in the textarea it says Array. So the text is gone and is replaced with Array. But that is not working. Maybe I have to use Jquery? 回答1: Codeigniter allows you to pass attributes into your form

问题 My problem: When my text box's MaxLength is reached, a beep sound is produced. I want to prevent this beeping and would even go so far as preventing all instances of beeping for my application if achievable. I'm already familiar with how to mimic MaxLength using Substring and resetting the caret but in this particular instance, substituting MaxLength is not an option. To reproduce: In Visual Studio, in design mode, drag a text box onto a fresh form. Use the following as is: Code: Public Class

问题 I am new to spark scala and I have following situation as below I have a table "TEST_TABLE" on cluster(can be hive table) I am converting that to dataframe as: scala> val testDF = spark.sql("select * from TEST_TABLE limit 10") Now the DF can be viewed as scala> testDF.show() COL1|COL2|COL3 ---------------- abc|abcd|abcdef a|BCBDFG|qddfde MN|1234B678|sd I want an output like below COLUMN_NAME|MAX_LENGTH COL1|3 COL2|8 COL3|6 Is this feasible to do so in spark scala? 回答1: Plain and simple:

问题 I need to make sure the input string can fit the line where I'm going to show it. I already know how to limit the number of characters but that is not very good because 2 strings with the same character length have differente size... For exemple: String1: "wwwwwwwwww" String2: "iiiiiiiiii" in android string1 is much larger than string 2 because "i" consumes less visual space than "w" 回答1: You can use TextWatcher to analyse text being entered and Paint to measure the width of the current value

问题 I have a requirement where I need to limit the number of characters entered in EditText. I know this can be easily achieved with the attribute android:maxLength for my EditText in my .xml layout file. But my problem is my EditText should also allow users to enter emojis. Now the catch is, the length of some of the emojis is sometimes 2 or sometimes 1. So, android:maxLength=1 doesn't allow entering emojis with length = 2. I can get the correct length of a string (with each emoji character