How to setvalue on onload event in Dynamics crm - fetch

I'm getting a record using fetch to client side, and I need to fill the data from the fetch into a field in a new record I create (fill field on client side), but when I use set value I get an error:
Cannot read property 'setValue' of null
I don't understand why, the field is Null because the new record is empty, why can't I fill it?
function OnLoad() {
formType = Xrm.Page.ui.getFormType();
if(formType == formTypes.Create){
copyCatNewRecord();
}
}
function copyCatNewRecord(){
var xml;
xml ="<fetch version='1.0' output-format='xml-platform' mapping='logical' distinct='false' count='1'>"
xml += "<entity name='needs'>"
xml += "<attribute name='needsid' />"
xml += "<attribute name='needsname' />"
xml += "<order attribute='modifiedon' descending='true' />"
xml += "</entity></fetch>"
var ret = frameworkGlobal.ExecuteFetchRequest(xml);
var currValue = ret[0].needsid.Value;
// This line returns an error
Xrm.Page.getAttribute("needs").setValue(currValue);
}

Cannot read property 'setValue' of null
This error message is usually received when Xrm.Page.getAttribute() has been called on a field that doesn't exist. So, are you sure that "needs" is the schema name of an actual field on your form? The field should probably have a prefix such as new_ i.e. "new_needs"

The error that you are receiving indicates that the field you are trying to write data was not found. Make sure the field is present on the form and that you are using the logical name when trying to access it (see Dave Clark's answer).
In case you are trying to set the value from a Html webresource present on your form use window.parent to access the field > window.parent.Xrm.Page.getAttribute("prefix_fieldname").setValue(currValue);

Related

xpages session scope AND document data binding

I have a value that I get from a picklist. I set this value as a sessionScope variable.
I then want to use this value, do a lookup, and set the value of an input field - which is working.
However, I am doing the lookup code in the fields data binding section using SSJS, and as such am not too sure how to save this value (normally my data binding would just be document1.FIELDNAME)
I've tried setting the value as part of my code, but the change is not saved in the backend doc.
I've also tried doing the lookup code in the fields "Default value" property, but this always just returns nothing.
Does anyone know how I can display on the xpage the value from my lookup AND also save this value to the backend document?
I fear I am missing something simple and maybe getting tunnel vision!
The code I am using for my data binding value is below.
Thanks
try{
var key1 = sessionScope.PLProspectiveAssured;
var dbName:NotesDatabase = session.getDatabase(database.getServer(),"CIR2001.nsf");
if (key1==""){
returnVal = "Not found";
}else {
var vwOrgs:NotesView = dbName.getView("OrgDocID");
var doc:NotesDocument = vwOrgs.getDocumentByKey(key1);
returnVal = doc.getItemValueString("OrgCountry");
}
// set our field
var doc:NotesDocument = document1.getDocument();
doc.replaceItemValue("ProspectiveAssured", returnVal);
return returnVal;
}catch(e){
openLogBean.addError(e,this);
}
Use your datasource and set the value using .setValue(field, value). In your case:
// set our field
document1.setValue("ProspectiveAssured", returnVal);
Make sure that you save your datasource somewhere (else).

How to get the Filename in code behind on selecting a file, before uploading it to the server using aspx and CS?

I want to retrieve the file name and perform some validation on that filename. so before uploading i have to get the filename of the file selected for uploading.
Actually what i wanted is to get the filename and retrieve some fields from database based on which file is chosen , and send the data retrieved from database on the client side in some textfield. So for that before on click of upload i need to call a method in code behind which will validate all these things. I tried using AjaxControlToolkit, its not working.
Use GetFileName() method. Below example from MSDN link.
string fileName = #"C:\mydir\myfile.ext";
string path = #"C:\mydir\";
string result;
result = Path.GetFileName(fileName);
Console.WriteLine("GetFileName('{0}') returns '{1}'",
fileName, result);
result = Path.GetFileName(path);
Console.WriteLine("GetFileName('{0}') returns '{1}'",
path, result);
// This code produces output similar to the following:
//
// GetFileName('C:\mydir\myfile.ext') returns 'myfile.ext'
// GetFileName('C:\mydir\') returns ''
If you want to validate the filename on the client prior to sending it to the server you will not be able to do so with C#, you could quite easiy write a validation function in Javascript however.
You could perform server side validation of the file, but that would mean after uploading it. You could then make sure the file fulfills all your validation criterias and if it for some reason fails validation you could return the error message to the user. But that would mean a full postback of the page.
See below code example to get the file name :
var filePath = "C:\\SpiderCode\\MyFile.txt";
var fileName = System.IO.Path.GetFileName(filePath);
Client Side Code
<asp:FileUpload runat="server" ID="FileUpload" Width="100px" />
In code behind, check if user select any file, then it will simply gives you the file name in the fileName variable.
if (FileUpload.HasFile)
{
string fileName = FileUpload.FileName;
}

Accessing the query string value using ASP.NET

I have been trying to find the question to my answer but I'm unable to and finally I'm here. What I want to do is access the value passed to a webpage (GET, POST request) using asp.net. To be more clear, for example:
URL: http://www.foobar.com/SaleVoucher.aspx?sr=34
Using asp.net I want to get the sr value i.e 34.
I'm from the background of C# and new to ASP.NET and don't know much about ASP.NET.
Thanx.
Can you refer to this QueryString
Here he says how to access the query string using:
Request.Url.Query
That is not called a Header, but the Query String.
the object document.location.search will contain that and the javascript to get any query string value based on the key would be something like:
function getParameterByName(name) {
name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
results = regex.exec(location.search);
return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}
code from other question: https://stackoverflow.com/a/901144/28004

How to override VBScript GetObject method in .NET

I am having below code in VBScript
' Retrieve the keyword category for page section names
Set SectionCat = TDSE.GetObject(WebdavToUri(getPublicationWebDav(WEBDAV_SECTION_CAT)), 1)
' Retrieve the localized section keyword
Set SectionKeyword = SectionCat.GetKeywordByTitle(meta)
' Open the English translated section keyword
Set SectionKeyword = TDSE.GetObject(SectionKeyword.Id, 1, WEBDAV_UKEN_PUB)
SectionName = SectionKeyword.Title
Where WEBDAV_UKEN_PUB is the WebDavPath, now in VBScript GetObject method we have got option to pass three parameters 1) Item.ID, 2) TDSDefines.OpenModeEditWithFallback and 3) WebDavPath from where to make the object.
Now I want to write same logic in 2009 .Net templating, below is the sample code, I am trying to write but not able to get rid of VBScript Object.
Category cat = engine.GetSession().GetObject(WebdavToUri(getPublicationWebDav(Constants.WEBDAV_SECTION_CAT,package,engine), engine)) as Category;
if (cat != null)
{
//_log.Info("Category" + cat.Title);
Keyword keyword = cat.GetKeywordByTitle(meta);
//_log.Info("keyword 1" + keyword.Title);
keyword = engine.GetObject(Constants.WEBDAV_UKEN_PUB) as Keyword;
//_log.Info("keyword 2 " + keyword.Title);
if (keyword != null)
{
sectionName = keyword.Title;
}
keyword = null;
I am able to create Category object, however when I am trying to make Keyword object its getting failed and giving object reference error.
Do we have any class or method which work same like VBScript GetObject which will make the Object from the passed webdavpath or can somebody can give sample code on this.
I think your problem is here:
keyword = engine.GetObject(Constants.WEBDAV_UKEN_PUB) as Keyword;
You are using the WEBDav URL of a publication, and then attempting a dynamic cast to Keyword. You can't cast a Publication to a Keyword, so the cast fails and your keyword variable is assigned null.
Using dynamic casts in this way is an easy way to fool yourself. The "As" keyword (C# keyword not Tridion keyword) should be used when you don't know at compile time what type you expect. If you know that you expect an item of type Keyword, then you should write:
keyword = (Keyword)engine.GetObject(Constants.WEBDAV_UKEN_PUB);
This way - when the cast fails, you'll get an exception that identifies the problem correctly.
In TOM.NET we cannot get an object and specify which pub to read it from, we need to modify the TcmUri to be in context.
So:
Repository context = (Repository)session.GetObject(WEBDAV_UKEN_PUB);
TcmUri keywordInContext = new TcmUri(keyword.Id.ItemId, keyword.Id.ItemType, context.Id.ItemId);
Keyword keyword = (Keyword)session.GetObject(keywordInContext);

ASP.NET & Ajax: query string parameters using ISO-8859-1 encoding

Here's another one for you to help me solve: I have an ASP.NET website that uses AJAX (asynchronous) calls to am .ashx handler, passing a query string parameter to get some information from the database.
Here's an example of how it works:
Client-side (Javascript) code snippet that makes the asynchronous call to the handler:
/* Capture selected value from a DropDownBox */
var dropdown = document.getElementById(DropDownID);
var selectedValue = dropdown.options[dropdown.selectedIndex].value;
/* Make the call to the handler */
var url = "MyHandler.ashx?param=" + selectedValue;
var ajaxObj = new Ajax();
ajaxObj.doRequest(url, MyCallback, args, connectionFailed);
When I load the webform (that contains this AJAX call) for the first time, it sends the right query string to the handler (I checked it using debug in Visual Studio), like param = Street Joseph Blíss. That's the right behavior I want it to have.
The thing is that when I load that webform again (and all subsequent times), that í character from "Blíss" appears in server-side as í-. As that's the key from the entity I'm trying to select on server-side database access script, it doesn't work as it worked on 1st webform load.
I tried encoding the query string on client-side and decoding it on server-side, using something like this:
Client-side (Javascript):
var encodedParam = encodeURIComponent(selectedValue);
/* Make the call to the handler */
var url = "MyHandler.ashx?param=" + encodedParam ;
Server-side (ASP.NET, C#):
string encodedParam = context.Request.QueryString["param"];
string value = HttpUtility.UrlDecode(encodedParam, Encoding.ASCII);
...but I had no luck with it and the problem still remains. Any help?
After some more searching, I found out how to solve with server-side code refinement. Here's the deal:
I had to alter my .ashx handler to parse the original parameter grabbed from the query string and convert it into UTF-8. Here's how it's made:
// original parameterized value with invalid characters
string paramQs = context.Request.QueryString["param"];
// correct parsed value from query string parameter
string param = Encoding.UTF8.GetString(Encoding.GetEncoding("iso8859-1").GetBytes(paramQs));
Happy coding, folks! :)

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