Check Postback in Javascript

function isPostBack() {
return document.referrer.indexOf(document.location.href) > -1;
}

Sharepoint people picker Validation

Sharepoint People picker validation in javascript

var validatorId = 'validator ID';
        var textboxId = validatorId.replace('val_pck', 'txt_pck');
         var pickerId = validatorId.replace('val_pck', 'pck');
         var pickerValue = $("#" + pickerId).html();
         if (pickerValue == "" || pickerValue.indexOf('title') == -1 || $("

" + pickerValue + "

").find("#divEntityData").length == 0)
         {
          alert('invalid');
         }

set the value of people picker

var pickerKey = $("

"

 + pickerValue + "

").find("#divEntityData").attr("key");
if (args.IsValid && $('#' + textboxId)) $('#' + textboxId).val(pickerKey);

POST Method in XMLHTTP Request in Sharepoint

function callAjax() {


var messageContent = "Text9";

var params = "MessageContent=" + messageContent;
alert(params);

//ajax to check length
var xmlHTTPObject = new ActiveXObject("Microsoft.XMLHTTP");
if (xmlHTTPObject == null) return null;
xmlHTTPObject.Open("POST", "http://localhost:51240/WebSite1/Ajax.aspx", true);
//alert('/sites/MB/_layouts/MB2010/MBCheckMessageSize.aspx');

xmlHTTPObject.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

// xmlHTTPObject.setRequestHeader('Content-Type', 'application/text; charset=utf-8');

xmlHTTPObject.setRequestHeader('Content-length', params.length);

///xmlHTTPObject.setRequestHeader('Connection', "close");
//alert("/_layouts/AMAT.MOLDS/GetMoldPartNo.aspx?MatNo="+partNumberVal);

xmlHTTPObject.onreadystatechange = function () {

if (xmlHTTPObject.readyState == 4 && xmlHTTPObject.status == 200) {

// alert(a.responseText);
if (xmlHTTPObject.responseText.length > 0) {

alert(xmlHTTPObject.responseText);

}

else {

//alert("Else Block");
}

}

}

//alert(d);

xmlHTTPObject.Send(params);
}

CS Page Code
Request.Form["MessageContent"];

Open Modal Dialog In serverside Code in sharepoint 2010

Hi,

When We will  call  SP.UI.ModalDialog.showModalDialog(options) in server side it will throw error "Object does not support this property" because the SP.Js will not get loaded in server side.

Solution;
Use ExecuteOrDelayUntilScriptLoaded method to avoid the error.

Javascript Function in .aspx Page 

 function ShowDialogTest() {
if (confirm('Do u want to continue?')) {
var modalDialog;
var urls = '<%=SPContext.Current.Web.Url %>'
urls = urls + '/_layouts/GetSPUserList/DisplayUser.aspx?caseid=' + document.getElementById('<%=hdnCase.ClientID %>').value;
var options = { showClose: true, };
var options = {
url: urls,
tite: 'Workflow Task',
allowMaximize: false,
showClose: true,
width: 800,
height: 600
};
modalDialog = SP.UI.ModalDialog.showModalDialog(options);
}

}   code behind page Server side code
ScriptManager.RegisterStartupScript(this, this.GetType(), ClientID, "ExecuteOrDelayUntilScriptLoaded(ShowDialogTest, \"SP.js\");", true);

Javascript Trim and Multiple Email Validation

function trim(str) {

if (!str

typeof str != 'string')

return null;

return str.replace(/^[\s]+/, '').replace(/[\s]+$/, '').replace(/[\s]{2,}/, ' ');

}

function emails(oSrc, args) {

var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;

var address = args.Value;

var eadrs = address.split(';');



for (i = 0; i < eadrs.length; i++) {

var adr=trim(eadrs[i]);

if (adr != "" && adr != null)

if (reg.test(adr) == false) {

args.IsValid=false;

}

}

}
 





ClientValidationFunction="emails" ControlToValidate="TextBox2">

Clear People picker on dropdown change index in sp 2010

clearPicker()
{
var control;
var arr = document.getElementsByTagName("div");
for (var i = 0; i < arr.length; i++)
{
if (arr[i].id.indexOf("upLevelDiv") > 0)
{
control = arr[i];
}

}
control.innerHTML = '';
arr = document.getElementsByTagName("input");
for (var i = 0; i < arr.length; i++)
{
if (arr[i].name.indexOf("hiddenSpanData") > 0)
{
control = arr[i];
 }
}
control.value = '';
}

Open new modal popup while closising the parent modal popup.

Parent page code :

var siteUrl = http://siteurl/;

var modalpage = { url: siteUrl + "/_layouts/MyModal/Pages/NewModalForms.aspx", title: "New  Input Form", allowMaximize: false, width: 700, height: 300, showClose: true, dialogReturnValueCallback: silentCallback };

function openModalForm() {
SP.UI.ModalDialog.showModalDialog(modalpage);
}

function silentCallback(dialogResult, returnValue)
{

if (returnValue != null && returnValue != "")
{
OpenPopUpPageWithTitle(siteUrl + '/Lists/lst/NewForm.aspx?' + returnValue, RefreshOnDialogClose, null, null, 'New Modal Form');
}

}
 
Modalpopup page code
 
SP.UI.ModalDialog.commonModalDialogClose(SP.UI.DialogResult.cancel, queryString);