Linq into the array then find values in the array and list to combobox

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I would like to return the result of the LINQ query to the array, the list then look in this array for example with the letter "A". And return the list to the combobox containing all the letters "A".

My linq query:

var collectionName = (
    from row in repos.GetTable<Table_Names>() 
    select row.Name
    ).Distinct().ToArray();

And I do not know now how to search the array so that it will find all of them containing the letter "A".

Ultimately, I would like to search in the array instead of sending queries to the database. That would make the list in the combobox narrow down dynamically.

I think it's better to get the filtered collection, instead for perform search after getting the collection. So I suggest you to use a Where clause like the following to get filtered items only:

string searchString ="A";

from row in repos.GetTable<Table_Names>() 
where row.Name.Contains(searchString)
select row.Name;

Instead for Contains you can also try StartsWith if you want to get the collection of strings that starts with the given search text.

Enumerable.Cast<TResult>(IEnumerable) Method (System.Linq), Select(fruit => fruit); // The following code, without the cast, doesn't compile. The immediate return value is an object that stores all the information that is required For example, ArrayList does not implement IEnumerable<T>, but by calling the ArrayList object, the standard query operators can then be used to query the  I have a table of users, grouped into sessions. I would like to select an array for each user that consists of the number of tasks they have in each session:. var taskCounts = from session in gzClasses.e_userLongSessions orderby session.workerId ascending, session.startTime ascending group session by session.workerId into record select record.Select(s => s.totalTasks).ToArray(); int[][] result

If you don't want to filter in the database, you can use linq to objects to further filter the collection in memory:

var filtered = collectionName.Where(item => item.Contains("A")).ToArray();

Programmatically Binding DataSource To ComboBox In Multiple Ways, Binding DataSource with Array; Binding DataSource with List; Binding DataSource with DataView; Binding DataSource with Enumeration Values Assume you get the data from a database into a DataSet using a Stored  Now before going into deep discussion, I would like to tell you that this article is not intended to discuss the basic concepts of LINQ or its advantages or disadvantages. Here I would like to show how a LINQ query can process a simple integer array using the C# programming language with nice examples. Process integer array with LINQ.

You can use SqlMethods.Like in LINQ query. Check the code below

private void comboBox1_TextChanged(object sender, EventArgs e)
    {
        comboBox1.DataSource = getItems(comboBox1.Text);
        comboBox1.DisplayMember = "Name";
        comboBox1.ValueMember = "ID";
    }
    public static List<ComboboxItem> getItems(string text)
    {
        DataClasses1DataContext context = new DataClasses1DataContext();
        try
        {
            List<ComboboxItem> Ilist = new List<ComboboxItem>();
            var query =  from x in context.testComboBoxes where SqlMethods.Like(x.name, '%' + text +'%') select x;
            foreach (var q in query)
            {
                ComboboxItem item = new ComboboxItem();
                item.ID = q.id;
                item.Name = q.name;
                Ilist.Add(item);
            }
            return Ilist;
        }
        catch (Exception ex)
        {
            return null;
        }
    }
    public class ComboboxItem
    {
        public object ID { get; set; }
        public string Name { get; set; }
    }

how to get the all combobox item . using array, Array to items. Hide Copy Code List of items in string array. Hide Copy Items Select item).ToArray Or you could use LINQ. Hide Copy  The list then provides it's first item. Select then transforms that item into what it needs to spit out (in this case, just the int 0) and gives it to Where. Where takes that item and runs it's function which determine's that it's true and so spits out 0 to ToList, which adds it to the list. That whole thing then happens 9 more times.

Data Binding in ComboBox control for Syncfusion ASP.NET MVC, Binding local data; Binding remote data; SQL Data Binding; LINQ Data value, string, Specifies the hidden data value mapped to each list item that should The ComboBox can generate its list items through an array of complex data. select LINQ to SQL Classes template, type a name for the .dbml file, and then click Add. These statistics include the minimum value, maximum value, and the range. They therefore need to be numerically sorted prior to the calculations, which isn't a problem. When the user clicks the 'Calculate' button, I need the code to first assign all list box items into an array so that they can then be sorted.

How to Sort the Elements of the ComboBox in C#?, In ComboBox, only one item is displayed at a time and the rest of the items are present in If you want to sort the elements of the ComboBox, then set the value of this property to Linq;. using System.Text;. using System.Threading.Tasks;. using System. C# | Get the number of elements actually contained in the ArrayList  Linq to Objects: This provides the ability to query IEnumerable<T>-based information sources which include arrays, collections, list of objects. Linq to XML: This provides efficient, easy-to-use, in-memory XML manipulation capabilities to provide XPath/XQuery functionality to the programming languages using simple query operators.

Various Ways to Get Distinct Values from a List<T> using LINQ, Various Ways to Get Distinct Values from a List<T> using LINQ Contact me at vmsdurano at gmail dot com. reference type object then the Distinct will threat the values as unique even if the property values are the same. Either as an array formula or simply pasting down the range, the result of the proposed formula stacks values in (column B) from rows 3 to 39 with a blank in row 18, AND also in rows 63 thru 96, with a blank in row 76.

Comments
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