Viewstate is not maintained in iframe inside MS CRM form

We had a page that is hosted inside CRM form, the page contains list with a checkboxes beside each each row. When clicking apply, certain action should be performed on the selected items. things are working fine on the development machine, but when hosting inside the CRM form, when clicking “apply”, the action wasn’t applied on the selected items, we discovered later that the code that loops over the checked items, doesn’t run as if there is no records checked.

Doing some search I found that CRM web.config by default has the following line

enableViewState="false" i.e. by default Viewstate is not enabled in CRM.

Changing this to enableViewState="true" and restarting IIS, every thing worked fine and actions were applied successfully.

There is another option which is to enable this in the page directives like the following

<%@ Page Language="C#" ... EnableViewState="true" %>

Viewstate is not maintained in iframe inside MS CRM form

We had a page that is hosted inside CRM form, the page contains list with a checkboxes beside each each row. When clicking apply, certain action should be performed on the selected items. things are working fine on the development machine, but when hosting inside the CRM form, when clicking “apply”, the action wasn’t applied on the selected items, we discovered later that the code that loops over the checked items, doesn’t run as if there is no records checked.
Doing some search I found that CRM web.config by default has the following line
enableViewState="false" i.e. by default Viewstate is not enabled in CRM.
Changing this to enableViewState="true" and restarting IIS, every thing worked fine and actions were applied successfully.
There is another option which is to enable this in the page directives like the following
<%@ Page Language="C#" ... EnableViewState="true" %>

Allowing concurrent user terminal sessions on windows 2008

We had a server running windows 2008, we were several persons working on the same machine at the same time, we all were using one user credentials. Each time one of us was connecting remotely to the server, it was disconnecting the other person who was working at that time, so only 1 session was allowed per user on the server

I was looking for the option to enable multiple sessions per user, doing some search, finally i found it

Click on start
Type "Remote desktop session host configuration" and hit enter
You will find an option on the screen that says "Restrict each user to a single session"

Double click that option, and uncheck this option and click OK

Then you will be able to connect several users remotely to windows 2008 using the same user credentials

Modifying non customizable entities in CRM 4.0

We wanted to add extra columns for the Queues view, while the Queue item is not customizable entity we found a way posted in several blogs, by modifying the "isCustomizable" setting from the DB directly with the below statement

UPDATE Entity
SET ISCUSTOMIZABLE = 1
WHERE NAME = 'queueitem'

After doing this, we were able to open the Queue Item entity and modify the View, we added more columns, then with javascript we modified the values for this columns.

It is very important to change back the settings as it was after finishing the modification by running the same script again and setting it back to 0

UPDATE Entity

SET ISCUSTOMIZABLE = 0

WHERE NAME = 'queueitem'

Escaping single quote in server side script in asp page

We had a javascript function that was using server side property like the following,

<a href="#" onclick="MyFunction('<%=SomeProperty %>')">Link</a>

When "SomeProperty" contains single quote "'" this was causing script errors in the page.




To solve this error, just add the following after SomeProperty

.ToString().Replace("'","\\'").Replace("\"","&quot;")

so that it will look like this at the end

<a href="#" onclick="MyFunction('<%=SomeProperty.ToString().Replace("'","\\'").Replace("\"","&quot;") %>')">Link</a>

This will solve the problem


Note: when i tried to do this from the code behind, replacing the quote, it didn't working

SQL Server - Stored Procedure returning table with dynamic columns

We had a stored procedure that returns some data, later we wanted to add some columns to this data, and these columns are dynamic.
We found several articles on how to use pivot to create dynamic columns in tables, for example
http://www.simple-talk.com/community/blogs/andras/archive/2007/09/14/37265.aspx

and others,

All using the same method, constructing the column headers in a variable, then creating inline sql and using pivot statement and this variable as the columns

In our case we had already a very big select statement, that we didn't want to alter, we just wanted to add more columns to it.

We thought of using table user defined function, but then we had to define the table columns, which we can't do, as it should be dynamic.

We thought also of using a view, then to join with this view, but we can't use pivot in views

We thought also of using a separate stored procedure and calling this stored procedure from the original one, but we found that this is not supported solution.

Finally we tried something and it worked, we alerted the original stored procedure like the following: We inserted the output of the first select statement into a temp table, and then added the second select and pivot in an inline sql statement, and in this statement we inner joined with our temp table.

An example of what we did

Suppose the first statement is like the following

Select * from table1

and our pivot statement is like the following


@query = 'select * from table2 pivot (count(columnName1) for ColumnContainingData in (' + @columnNames + ')'

where columnsName1 is the column that we will perform the aggregate function on, @columnNames is a variable with column names comma seperated and surrounded with []

the final statement looked lke the following

select * into #tempTable from
(select Select * from table1) t
@query = 'select * from table2 pivot (count(columnName1) for ColumnContainingData in (' + @columnNames + ') t2 inner join #tempTable on #tempTable .SomeId = t2.SomeId'

Handling comma separated values parameter in a stored procedure without using inline sql

I have seen lots of implementation for comma separated values parameters, all using inline SQL to construct the query.
for example:
Suppose the parameter is @param having the value '1,2,3'
and we are selecting rows with state in (1,2,3)

Then the query would look like this

query='select * from TableName where state in (' + @param + ')'
exec query

Since i don't like inline SQL, i was looking for another methods

I found this method somewhere, i don't remember where exactly. It is based on constructing a table, and inserting the comma separated values in this  table, then in the query either we can inner join with this table to get the desired values only or we can use where clause

example on constructing this temp table



declare @param nvarchar(50)
set @param = N'1,2,3,4'
IF EXISTS
(SELECT * FROM tempdb.dbo.sysobjects WHERE ID = OBJECT_ID(N'tempdb..#temptable'))
BEGIN
DROP TABLE #temptable
END

CREATE TABLE #temptable(Code int)

   DECLARE @code varchar(10), @Pos int

    SET @param = LTRIM(RTRIM(@param))+ ','
    SET @Pos = CHARINDEX(',', @param, 1)

    IF REPLACE(@param, ',', '') <> ''
    BEGIN
        WHILE @Pos > 0
        BEGIN
                SET @code = LTRIM(RTRIM(LEFT(@param, @Pos - 1)))
                IF @code <> ''
                BEGIN
                        INSERT INTO #temptable (code)
                        VALUES (CAST(@code AS int)) --Use Appropriate conversion
                END
                SET @param = RIGHT(@param, LEN(@param) - @Pos)
                SET @Pos = CHARINDEX(',', @param, 1)

        END
    END
--select * FROM #temptable

Next in the main query, it can be like this

Select * FROM TableName
INNER JOIN #temptable on TableName.State = #temptable.code

or

Select * FROM TableName
where state in (select code from #temptable)

MS CRM Plugin development best practices

While i was debugging, I noticed that update plugin was lots of times, and each time it was called all case properties was sent in the context, While not all of them are updated. so i started searching on how to make sure that only the updated property is sent to the update plugin.
I found this article which is very useful
http://blogs.inetium.com/blogs/azimmer/archive/2010/01/25/plugin-best-practices-in-crm-4-0.aspx

In summary what i was doing wrong is like the following:
- I was doing retrieve entity then after, i was doing update to that entity, while the correct thing is that to do update without doing retrieve.
- When retrieving for any other reason, i was getting all columns, the correct thing to do is to get the desired columns only

MS CRM passing parameters in the query string

By default MS CRM 4 doesn't accept passing parameters in the query string, and it gives CRM error message
To enable passing parameters
follow the instructions in this URL
http://blogs.msdn.com/b/rextang/archive/2008/09/24/8962549.aspx

by adding a DWORD registry key under MSCRM named DisableParameterFilter and setting the value to 1

MS CRM Changing business unit for a user gives an error

We were trying to change the business unit for a user and it was giving us CRM error.

We already have increased the timeout long time ago by adding the registry keys as instructed here http://support.microsoft.com/kb/918609

Still having the same error.

Lastly we tried cleaning up the Async table as instructed here http://support.microsoft.com/kb/968520

After doing this we were able to change the business unit for the users