Useful DevExpress Videos

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This is a living list of DevExpress videos that I've personally found useful and so are probably good for other DevExpress beginners.

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Hiding an ASPXGridView Delete button with HTMLRowCreated vs. CommandButtonInitialize

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It's pretty typical in Administration forms to need to hide buttons on certain rows for various reasons. Particularly it is nice to hide the Delete button if in fact the row in question is being used in other places in the app. This is a nice feature to let the user know up front that the row in question is in use, rather than them trying to delete it and getting a foreign key related error after the fact. For years now in DevExpress ASPxGridView's I have been handling this in the HtmlRowCreated event. And I have been doing it wrong. Before: protected void gridGiftCodes_HtmlRowCreated ( object sender, DevExpress.Web.ASPxGridViewTableRowEventArgs e) { if (e.RowType == GridViewRowType.Data){ int commandColumnIndex = - 1 ; //Find the command column commandColumnIndex = e.Row.Cells.Count- 1 ; //assume it's the last visible colum //Get the command cell for this row GridViewTableCommandCell cell = e.Row.Cells[commandColumnIndex] as Gri...
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Specify the Server Name in your OutputFileDirectory for Hallengren SQL Server Backups

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I've been playing with SQL Agent tokens more, researching how Ola Hallengren uses them in his famous Maintenance Solution, and how you can use them. Particularly I was looking for a way to specify the "ServerName" in the Output File path. You can do this using a token instead of having to customize the MaintenanceSolution.sql script for each server. This is helpful when you're doing environment takeovers and trying to get consistent backups going across several servers. Here is an example of our solution, which is working well. You would modify line 29 of Ola's script:   DECLARE @OutputFileDirectory nvarchar ( max ) = '\\MyBackupServer\DBBACKUPS\ $(ESCAPE_SQUOTE(SRVR)) \OUTPUT' Then for each job step, Ola will setup the following output file. This can be seen in the "Advanced" properties of a particular Job Step. '\\MyBackupServer\DBBACKUPS\$(ESCAPE_SQUOTE(SRVR))\OUTPUT\$(ESCAPE_SQUOTE(JOBNAME))_$(ESCAPE_SQUOTE(STEPID))_$(ESCAPE_SQUOTE(DAT...
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SQL 2005 SP4 and MSreplication_subscriptions

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If you're trying to apply SQL 2005 SP4 (or any SQL service pack), and it's failing, and you're seeing error "MSP Error:  29537  SQL Server Setup has encountered the following problem: [Microsoft][SQL Native Client][SQL Server]Invalid object name 'MSreplication_subscriptions'", then you've hit this bug which Microsoft is currently saying they "Won't Fix": https://connect.microsoft.com/SQLServer/feedback/details/521231/failure-during-server-script-upgrade-process-on-database-in-sp-vupgrade-replication-procedure#tabs Probably you've done one of 2 things: You're using synonyms that match the system replication table names You've got some vestige replication tables laying around in one of your old databases My case was the latter. The fix was to find the vestige tables and get rid of them. I found them using the following script: [sourcecode language="sql"] /* This will detect db's containing vestiges of Replication...
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