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Where Query Syntax Help in  C# Code Behind

Posted on 2011-09-30
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Last Modified: 2013-12-16
Hope this is an easy one.  I have a combobox in silverlight that is querying from a database service with a where clause.  The data has commas so it works when using the single quotes, but I can't figure out the query code in C# to get the single quotes to work.  

This works outside of Visual Studio
(MBR_112th = 'LastName, FirstName MiddleInitial.')


queryName.OutFields.AddRange(new string[] { "MBR_112TH", "DIST", "WEBSITE", "PERSONAL_WEBSITE" });
queryName.Where = "MBR_112TH = " + QueryComboBoxName.SelectedIndex.ToString();

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Question by:Gregory3
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dwe761 earned 1000 total points
ID: 36892835
did you try this?
queryName.OutFields.AddRange(new string[] { "MBR_112TH", "DIST", "WEBSITE", "PERSONAL_WEBSITE" });
queryName.Where = "MBR_112TH = '" + QueryComboBoxName.SelectedIndex.ToString() + "'";

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by:käµfm³d 👽
käµfm³d   👽 earned 1000 total points
ID: 36894152
You might find it a tad more readable to use string.Format, though dwe761's approach should work as well:

queryName.OutFields.AddRange(new string[] { "MBR_112TH", "DIST", "WEBSITE", "PERSONAL_WEBSITE" });
queryName.Where = string.Format"MBR_112TH = '{0}'",  QueryComboBoxName.SelectedIndex.ToString());

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where "{0}" gets substituted for the first parameter after the format string (i.e. the first parameter to string.Format).
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Expert Comment

by:käµfm³d 👽
ID: 36894156
P.S.

I forgot an opening parentheses on the function call. Corrected below:
queryName.OutFields.AddRange(new string[] { "MBR_112TH", "DIST", "WEBSITE", "PERSONAL_WEBSITE" });
queryName.Where = string.Format("MBR_112TH = '{0}'",  QueryComboBoxName.SelectedIndex.ToString());

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Author Closing Comment

by:Gregory3
ID: 36905533
Thanks guys.  Both worked in different situations.
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