When using Easyui,datagrid, the data cannot be displayed if there is a newline character in the JSON

Http://www.xuebuyuan.com/2103538.html

Each value needs to handle line breaks

Item = Item. Replace ("\ r \ n", ""); or \\r\\n to replace newline characters

Http://www.cnblogs.com/lhws/archive/2013/08/16/3262301.html

TextArea is saved to the MySQL database \ n by using inline editing in the DataGrid in Easyui
Enter a carriage return in textarea in JS read textarea value has \ r \ n and then into the business layer into a string it is possible to become a blank space and then be stored in the database, when the value is taken out into the form of a space, so we need to do not display \ r \ n replace it.

When JS takes textarea:

If you use

var str = document.getElementById ("textarea"). Value;
str = str.replace ("\ r \ n", "<br>");

will only replace the first \ r \ n with <br>, how do you replace all n \ r \ nthe <br>? Does it have to be infinitely more than a replace?

In fact, replace can be combined with regular expressions to replace all \ r \ n at once.

var reg=new RegExp ("\ r \ n", "G");
Str= str.replace (Reg, "\ r \ n");

So all the str \ r \ n is replaced by <br>. You can then save it in the database.

When you remove it, just replace it with the value.

var reg=new RegExp ("<br>", "G");
stt= str.replace (Reg, "\ r \ n");
document.getElementById ("textarea"). Value=str;

More detailed analysis and application can refer to JavaScript's Replace method and regular expression in conjunction with the application explained

Here are the 2 functions I wrote directly into the universal package later using can be replaced

function ReplaceTextarea1 (str) {
var reg=new RegExp ("\ r \ n", "G");
var reg1=new RegExp ("", "G");

str = str.replace (Reg, "<br>");
str = str.replace (REG1, "<p>");

return str;
}


function ReplaceTextarea2 (str) {
var reg=new RegExp ("<br>", "G");
var reg1=new RegExp ("<p>", "G");

str = str.replace (Reg, "\ r \ n");
str = str.replace (REG1, "");

return str;
}

2. When the contents of the HTML <textarea> tag are converted to "\ r \ n" and the submitted content is placed in the <textarea> tab, the carriage return will revert to the normal line feed.

However, when a string with "\ r \ n" is placed in an ordinary text field of HTML, the original line break is converted to a space, so you need to replace "\ r \ n" with "</br>" in the string before displaying it.

Also, it is important to note that the El expression transforms the "</br>" line break into "&lt;/br&gt;", "&lt;" and "&gt;" corresponding to the "<" and ">", that is, to the page, or display as "</br>" (Oh, El is too intelligent), in order to remedy this, you need to use the JSP tag (<%=%>) to display.

So when you need to display the content submitted by <textarea> in a normal text field, you can store the non-processed string directly in the database, instead of "\ r \ n" with "</br>" before the display, then use <%= on the page%> To display the content.



3. If the spaces and carriage returns that are submitted to the database via the textbox are displayed correctly
public string Myreplace (string mystr)
{
if (mystr = = NULL | | MyStr = = "")
{
Return ("&nbsp;");
}
Else
{
MyStr = mystr. Replace ("\n\r", "<br>");
MyStr = mystr. Replace ("\ R", "<br>");
MyStr = mystr. Replace ("\ T", "");
return (MYSTR);
}
}

When using Easyui,datagrid, the data cannot be displayed if there is a newline character in the JSON