Databases
StackOverflow2013
Postsdbo
POHow To Use LINQ To Find Matching Data Against A List Of Strings
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow To Use LINQ To Find Matching Data Against A List Of Strings
    primarykey
    data
    text
    <p>I have a specialized string dictionary of (string, string) (_RulesAndTheirDescriptions) that contains the name (key) and description (value) of methods in a given class. I currently do the following query to search for a match on the key or value and then bind that to a grid. Works great! </p> <pre><code>Dim Results = From v In _RulesAndTheirDescriptions _ Where v.Value.ToString().ToUpper().Contains(Me.txtSearchFor.Text.ToUpper()) _ Or v.Key.ToString().ToUpper().Contains(Me.txtSearchFor.Text.ToUpper()) _ Order By v.Key _ Select New With {.Rule = v.Key, .Description = v.Value.ToString()} </code></pre> <p>This works great when matching "word" or perhaps even "my word" but I would like to search for "my" and "word" and "also this". Meaning words and phrases seperated by spaces. Much like google and bing. When the user enters a value I only would require that the phrases be quoted. The following RegEx takes care of getting me a list word/phrase the user is looking for. Now I am having a hard time combining the the above query that works with the new enhanced list. </p> <p>Please excuse the below code. I am just trying to test things and get it working.</p> <pre><code>Dim b As Match b = Regex.Match(Me.txtSearchFor.Text, "(?&lt;=(?:^|\s|,)"")[^""]*?(?="")|(?&lt;=\s|^)(?!"")[\w\W]+?(?=\s|$)") Dim sl As List(Of String) = New List(Of String) If b.Success Then sl.Add(b.Value.ToUpper()) Dim sMatch = b.NextMatch() While sMatch IsNot Nothing AndAlso sMatch.Success sl.Add(sMatch.Value.ToUpper()) sMatch = sMatch.NextMatch() End While End If </code></pre> <p>Per another post on this site I tried to do the following but that is not returing any results. I suspect because the sl.ToString() returns the type and not the value? </p> <pre><code>Dim Results = From v In _RulesAndTheirDescriptions _ Where v.Value.ToString().ToUpper().Contains(sl.ToString()) _ Order By v.Key _ Select New With {.Rule = v.Key, .Description = v.Value.ToString()} </code></pre> <p>If I am going about this all wrong, please enlighten me. Seems like it should be easy. </p> <p>Thanks in advance, Kevin</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USGrandizer
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload