// Purpose - PermitApplicationSearch.js provides all client-side script event handlers for // PermitApplicationSearch.aspx. This version greatly simplifiees the processing logic required // when compared with previous version. (EYang, Sep 2009) // // Notes: With Master Pages, it is necessary to register this code block at run time so that // it runs only for PermitApplicationSearch.aspx, and not other pages that share the same // .Master file. See ConfigClientScripts() method in code-behind to see how the code block // is registered. // // Reference Google Groups for original article from a guy who struggled with exactly the // same thing: // Group: microsoft.public.dotnet.framework.aspnet // Subject: "JavaScript From PageLoad()?" // Author: "Frank" // Date: Dec 7, 2006 var _isSubmitWithSearch = false; // this flag controls what updates to UI occur when user // initiates a search, or else suppresses them if any other // kind of postback occurs function body_OnLoad(txtSearchInputClientID) { // Purpose: generic tag onload code, such as putting focus on the correct UI control var txt = document.getElementById(txtSearchInputClientID); if(txt) { //alert('found the text box'); txt.focus(); } } // ALERT! - disable body_OnKeyDown (whereas we supported it previously) because... // * Firefox - does not seem to recognize onkeydown attribute of tag. Firefox may support // keydown somewhere else in the DOM, but we don't need it right now. // * IE - we can avoid defining onkeydown for IE6 by setting up DefaultButton attribute of // control in HTML Design view. // * General Tip - we get overall better UI behavior by setting UseSubmitBehavior="false" for the // control in addition to the DefaultButton attribute of . function xxbody_OnKeyDown() { // Purpose: captures all KeyDown events on the form to determine when the Enter key // has been pressed, as it will result in a postback action. // if (window.event.ctrlKey == false && window.event.altKey == false) { switch (window.event.keyCode) { case 13: // enter key //alert('enter key pressed'); _isSubmitWithSearch = true; break; default: break; } } } function btnSearch_OnClick(btn, isSearch) { // Purpose: generic handler for initiation of search (also fires when user presses Enter key // after some trial-and-error in Firefox and IE - see body_OnKeyDown notes, above) // // Assumes: OnClientClick attribute has been set up in Design view of page. _isSubmitWithSearch = isSearch; //alert('new value of _isSubmitWithSearch = ' + _isSubmitWithSearch); } function frm_OnSubmit(lblStatusMessageTopClientID, tblSearchResultsClientID) { // Purpose: generic

tag onsubmit code. Assumes that this code has been "registered" // by server-side code using .RegisterOnSubmitStatement() call. It gets inserted by .NET // in front if any 'doPostback()' logic that the Framework generates. Use this opportunity // to update any part of the UI that should change while the user awaits the server's response. if (_isSubmitWithSearch) { // make the UI more informative to user... // - set label to indicate search is in progress; notice that this changes display // before the request for postback of page is actually sent from browser to server; // thus, it is more of an illusion than anything to set display to "Searching..." from // here, because it has no direct connection to the the server-side code that actually // executes search logic var lblStatusMessageTop = document.getElementById(lblStatusMessageTopClientID); //alert(lblStatusMessageTop); lblStatusMessageTop.className = 'statusMessageNormal'; //lblStatusMessageTop.innerText = "Searching..."; lblStatusMessageTop.innerHTML = 'Searching...'; // late change - standard DOM property is .innerHtml, // .innerText only works on IE (EYang, Sep 2009) // to prevent any confusion about consecutive searches, hide the previous search results // - notice that tblSearchResults is actually the .NET GridView control var tblSearchResults = document.getElementById(tblSearchResultsClientID); if(tblSearchResults) { tblSearchResults.style.display = 'none'; } } else { // do nothing for now, but consider later adding some messaging for other postbacks that // may occur such as: // * click on Permit App # to drilldown to PermitApplicationDetail.aspx // * click on GridView column header to re-sort data // * others? } _isSubmitWithSearch = false; // reset to default value because AJAX does not fully reload the page }