Javascript for "Paste" in RadComboBox "OnClientKeyPressing" event -


in onclientkeypressing event of radcombobox, checking if entered text inside radcombobox greater 5 characters, enable asp:button , if not disable asp:button.

both radcombobox , asp:button inside radgrid.

this works perfetcly if type in 5 or 5+ characters manually, not if paste 5 or 5+ characters inside radcombobox, if paste asp:button remains disable.

reason is: when paste in radcombobox, onclientkeypressing event raise , since key(ctrl+v) pressed 1 time, length of text 0 , per condition (if length < 3, disable button) remains disable.
please note length starts 0 not 1.

i know reason dont know how make detect whole text-length after paste in radcombobox

below javascript till now:

<telerik:radcodeblock id="rcb" runat="server">         <script type="text/javascript">             function handlekeypress(sender, eventargs) {                  var len = sender.get_text().length;                   var comboid = sender.get_id();                  var btnsearchid = comboid.replace("ddlaccountcode", "btnsearch");                 var btnctrl = document.getelementbyid(btnsearchid);                                      //code chk ctrl + v                                var e = eventargs.get_domevent();                  if (e.keycode == 86 && e.ctrlkey)                  {                     var len2 = sender.get_text().length; //-------issue here : pasted text/length 0 (as key pressed 1 time)                     alert(len2);                      if (len2 > 4) {                         //alert("ctrl+v : enable");                         btnctrl.disabled = false; //enable                     }                     else {                         //alert("ctrl+v : disable");                         btnctrl.disabled = true; //disable                     }                 }                 else if (eventargs.get_domevent().keycode != 8 && len > 4)                 {                     //alert("chk manually entered text");                     btnctrl.disabled = false; //enable                 }                 else if (eventargs.get_domevent().keycode == 8 && len > 4){                        //alert("backspace enable");                     btnctrl.disabled = false; //enable                  }                 else {                     btnctrl.disabled = true; //disable                 }             }         </script>     </telerik:radcodeblock>

html:

<telerik:radgrid id="radgrid1" runat="server" autogeneratecolumns="false" onneeddatasource="radgrid1_needdatasource">                             <mastertableview>                                 <columns>                                     <telerik:gridtemplatecolumn headertext="acc">                                         <edititemtemplate>                                                                                             <telerik:radcombobox id="ddlaccountcode" runat="server" height="200" width="260"                                              allowcustomtext="true" onclientkeypressing="handlekeypress" >                                                 <items>                                                     <telerik:radcomboboxitem text="gg" />                                                     <telerik:radcomboboxitem text="gg1" />                                                     <telerik:radcomboboxitem text="gg3" />                                                 </items>                                             </telerik:radcombobox>                                             <asp:button id="btnsearch" runat="server" text="search" onclick="btnsearch_click" onclientclick="buttonclicked()" usesubmitbehavior="true" />                                                                               </edititemtemplate>                                     </telerik:gridtemplatecolumn>                                 </columns>                             </mastertableview>                         </telerik:radgrid>

the onclientkeypressing event triggered between time when key pressed , when control populated text key press. means show text's length - 1 in normal cases user typing, , have no text yet when user pastes it.

i suggest using onclienttextchange event instead, trigger after text in control has changed. in case shouldn't need write conditional statement handle ctrl+v input. however, trigger after combo box has lost focus.

another solution, if need trigger when user presses key , not after combo box loses focus, wrap code inside settimeout call 1 ms second parameter, allow control have text updated before checked against code.


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