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POHow to create predicate dynamically
 

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    <p>Hi i want to create a list based on the search string using predicate expressions.</p> <p>I have a list of type products contains different names.</p> <pre><code>List&lt;products&gt; list1 = new List&lt;products&gt;(); list1.Add(new products("sowmya")); list1.Add(new products("Jane")); list1.Add(new products("John")); list1.Add(new products("kumar")); list1.Add(new products("ramya")); listBox1.ItemsSource = list1; </code></pre> <p>Now i want to filter the content based on user input.User will enter n no of strings with '+' as separator. After receiving the strings i will pass them to predicate object like this</p> <pre><code> private void textBox1_KeyDown(object sender, KeyEventArgs e) { List&lt;products&gt; list2 = new List&lt;products&gt;(); Expression&lt;Func&lt;products, bool&gt;&gt; predicate = PredicateBuilder.True&lt;products&gt;(); if (e.Key == Key.Enter) { string Searchstring = textBox1.Text.ToString().Trim(); string[] separator = new string[] { "+" }; string[] SearchItems=Searchstring.Split(separator,StringSplitOptions.None); foreach (string str in SearchItems) { string temp = str; predicate =p =&gt; p.Name.Contains(temp.ToLower()); } list2 = list1.AsQueryable().Where(predicate).ToList(); listBox1.ItemsSource = list2; } } </code></pre> <p>If i enter more than one string(sowmya+jane+john) its giving only the last string(john) result but i want a list of all matching strings</p> <p>Please answer this question because i'm trying this but i couldn't get the result.</p> <p>Please do some help thanks.</p>
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    1. COdup: http://stackoverflow.com/questions/845059/how-do-i-dynamically-create-an-expressionfuncmyclass-bool-predicate
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