处理问题的思路，基于easyui

1.例如有一棵树形结构的数据，在点击清空按钮的时候不想清空树形结构的数据？

     可以通过$('#id').combotree('setValues', ['1000000']);该方法设置，从而达到想要的效果。因为当时没想到怎么解决，就默认给其一个初始值。。。

2.在easyui中的<input type="text" name="nsrmc" id="nsrmc"class="easyui-textbox" data-options="required:true"/>

或者class="easyui-combobox"或者class="easyui-validatebox"等这样的数据在通过id从后台如何获取数据？

    可以通过var nsrsbh = $('#nsrsbh').val();这种方式取值。

今天遇到一个class="easyui-combotree"的数据，用var
nsrsbh = $('#nsrsbh').val();的方式获取不到值，但用下面的方式就可以获取到值了。

   该方式为：var id = $('#id').combotree('getValue');

3.输入框在点击回车的时候不进行保存。

document.onkeydown = function(e){
       if(!e) e = window.event;//火狐中是 window.event
       if((e.keyCode || e.which) == 13){
       
return false;
       }
   }

keyCode：

keycode    8 = BackSpace BackSpace

keycode    9 = Tab Tab

keycode   12 = Clear

keycode   13 = Enter

keycode   16 = Shift_L

keycode   17 = Control_L

keycode   18 = Alt_L

keycode   19 = Pause

keycode   20 = Caps_Lock

keycode   27 = Escape Escape

keycode   32 = space space

keycode   33 = Prior

keycode   34 = Next

keycode   35 = End

keycode   36 = Home

keycode   37 = Left

keycode   38 = Up

keycode   39 = Right

keycode   40 = Down

keycode   41 = Select

keycode   42 = Print

keycode   43 = Execute

keycode   45 = Insert

keycode   46 = Delete

keycode   47 = Help

keycode   48 = 0 equal braceright

keycode 49 = 1 exclam onesuperior

keycode   50 = 2 quotedbl twosuperior

keycode 51 = 3 section threesuperior

keycode   52 = 4 dollar

keycode   53 = 5 percent

keycode   54 = 6 ampersand

keycode   55 = 7 slash braceleft

keycode   56 = 8 parenleft bracketleft

keycode   57 = 9 parenright bracketright

keycode   65 = a A

keycode   66 = b B

keycode   67 = c C

keycode   68 = d D

keycode   69 = e E EuroSign

keycode   70 = f F

keycode   71 = g G

keycode   72 = h H

keycode   73 = i I

keycode   74 = j J

keycode   75 = k K

keycode   76 = l L

keycode   77 = m M mu

keycode   78 = n N

keycode   79 = o O

keycode   80 = p P

keycode   81 = q Q at

keycode   82 = r R

keycode   83 = s S

keycode   84 = t T

keycode   85 = u U

keycode   86 = v V

keycode   87 = w W

keycode   88 = x X

keycode   89 = y Y

keycode   90 = z Z

keycode   96 = KP_0 KP_0

keycode   97 = KP_1 KP_1

keycode   98 = KP_2 KP_2

keycode   99 = KP_3 KP_3

keycode 100 = KP_4 KP_4

keycode 101 = KP_5 KP_5

keycode 102 = KP_6 KP_6

keycode 103 = KP_7 KP_7

keycode 104 = KP_8 KP_8

keycode 105 = KP_9 KP_9

keycode 106 = KP_Multiply KP_Multiply

keycode 107 = KP_Add KP_Add

keycode 108 = KP_Separator KP_Separator

keycode 109 = KP_Subtract KP_Subtract

keycode 110 = KP_Decimal KP_Decimal

keycode 111 = KP_Divide KP_Divide

keycode 112 = F1

keycode 113 = F2

keycode 114 = F3

keycode 115 = F4

keycode 116 = F5

keycode 117 = F6

keycode 118 = F7

keycode 119 = F8

keycode 120 = F9

keycode 121 = F10

keycode 122 = F11

keycode 123 = F12

keycode 124 = F13

keycode 125 = F14

keycode 126 = F15

keycode 127 = F16

keycode 128 = F17

keycode 129 = F18

keycode 130 = F19

keycode 131 = F20

keycode 132 = F21

keycode 133 = F22

keycode 134 = F23

keycode 135 = F24

keycode 136 = Num_Lock

keycode 137 = Scroll_Lock

keycode 187 = acute grave

keycode 188 = comma semicolon

keycode 189 = minus underscore

keycode 190 = period colon

keycode 192 = numbersign apostrophe

keycode 210 = plusminus hyphen macron

keycode 211 =

keycode 212 = copyright registered

keycode 213 = guillemotleft guillemotright

keycode 214 = masculine ordfeminine

keycode 215 = ae AE

keycode 216 = cent yen

keycode 217 = questiondown exclamdown

keycode 218 = onequarter onehalf threequarters

keycode 220 = less greater bar

keycode 221 = plus asterisk asciitilde

keycode 227 = multiply division

keycode 228 = acircumflex Acircumflex

keycode 229 = ecircumflex Ecircumflex

keycode 230 = icircumflex Icircumflex

keycode 231 = ocircumflex Ocircumflex

keycode 232 = ucircumflex Ucircumflex

keycode 233 = ntilde Ntilde

keycode 234 = yacute Yacute

keycode 235 = oslash Ooblique

keycode 236 = aring Aring

keycode 237 = ccedilla Ccedilla

keycode 238 = thorn THORN

keycode 239 = eth ETH

keycode 240 = diaeresis cedilla currency

keycode 241 = agrave Agrave atilde Atilde

keycode 242 = egrave Egrave

keycode 243 = igrave Igrave

keycode 244 = ograve Ograve otilde Otilde

keycode 245 = ugrave Ugrave

keycode 246 = adiaeresis Adiaeresis

keycode 247 = ediaeresis Ediaeresis

keycode 248 = idiaeresis Idiaeresis

keycode 249 = odiaeresis Odiaeresis

keycode 250 = udiaeresis Udiaeresis

keycode 251 = ssharp question backslash

keycode 252 = asciicircum degree

keycode 253 = 3 sterling

keycode 254 = Mode_switch

4.关于兼容性的问题。

 例如在不同的浏览器input输入框和select下拉框的宽度有可能会出现不一致，解决办法有2种？

第一种：就是给input输入框和select下拉框设置相同的width

第二种：就是把select下拉框中的内容由下图方式



换为下图方式



就达到了预期兼容效果。 也就是说两者的宽度在不同的浏览器是一致的。

5.在easyui-datagrid中选中某一行进行修改操作的时候，有些时候会出现修改完之后，选择多行并出现蓝色？

解决办法：在修改操作的js方法中加上 $('#dg').datagrid('clearSelections'); 修改之后就不会在次选中任何一行，包括自身