Dataset to list string c#
WebOct 17, 2024 · If you just need a comma separated list for all of row values you can do this: StringBuilder sb = new StringBuilder(); foreach (DataRow row in results.Tables[0].Rows) { sb.AppendLine(string.Join(",", row.ItemArray)); } A StringBuilder is the preferred method as string concatenation is significantly slower for large amounts of data. WebMay 27, 2010 · Add a comment. 4. First of all, you're on the right track, but you should be thinking in terms of IEnumerable rather than List. And here is how you would do that: var myData = ds.Tables [0].AsEnumerable () .Select (r => new {column1 = r [0].ToString (), column2 = r [1].ToString () /*etc*/ });
Dataset to list string c#
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Web2 Answers Sorted by: 4 You'll need to add a column to the data table first. As it is created is has no columns DataTable datatable= new DataTable (); DataColumn workCol = datatable.Columns.Add ("column_name", typeof (String)); Share Improve this answer Follow answered Nov 22, 2024 at 17:04 Carlo Bos 3,020 2 15 27 Add a comment 0
WebI want to get records from database into a DataTable. Then convert the DataTable into a JSON object. Return the JSON object to my JavaScript function. I use this code by calling: string resul... WebJun 14, 2011 · This can easily be done using extension methods. Add this class to your solution. static class ListExtensions { public static DataTable ToDataTable (this …
WebMar 25, 2014 · It uses a loop to create a List from a dataset.Is there any direct method or shorter method or one line code to convert dataset to list. c#; ... (string xml) { XmlSerializer serializer = new XmlSerializer(typeof(T)); using (StringReader reader = new … WebApr 25, 2024 · Knowing that, now you can create a DataSet and use a StringReader to read the Xml straight into the DataSet. var ds = new DataSet(); using (var reader = new StringReader(xmlString)) { ds.ReadXml(reader); } Then, all you need to do is extract the data from the DataSet:
WebSep 6, 2009 · All replies. 0. Sign in to vote. User-1360095595 posted. Create a class with two public properties Id & City (get;set). Then use a List theList = …
WebApr 11, 2024 · Here you have a list of objects of your type. var records = Csvreader.GetRecords().ToList(); If you want to print it, then use properties of your class: shane\u0027s kindergarten countdown clean up timeWeb2. Using this below code, you can convert List to DataTable :-. List objlist = alldata; string json = Newtonsoft.Json.JsonConvert.SerializeObject (objlist); DataTable dt = Newtonsoft.Json.JsonConvert.DeserializeObject (json); Here, I'm assuming … shane\u0027s jewelry storeWebAug 7, 2009 · 5. You could create an extension method to add all property values through reflection: public static DataSet ToDataSet (this IList list) { Type elementType = typeof (T); DataSet ds = new DataSet (); DataTable t = new DataTable (); ds.Tables.Add (t); //add a column to table for each public property on T foreach (var propInfo in … shane\u0027s jewelry coWebNow if for example, my datatable has three values as 1,2,3. What I want is to put these three values in a string and separate them by commas as folows:-string test= "1,2,3"; If Datatable has 2 values, then string should be as follows:-string test= "1,2"; I did try but in vain. Please help. Thanks. edit:- shane\\u0027s jewelry storeWebJun 18, 2013 · You need to process your data in chunks since PopulateDataFromFile(); looks to be returning all of its data in one go (or as much as the array can fit). Using an … shane\u0027s landscapingWeb2. Using this below code, you can convert List to DataTable :-. List objlist = alldata; string json = … shane\u0027s lawn care llcWebFeb 10, 2024 · ♉ In C# using String.Join method we can convert our List to comma separated string. ♉ String.Join() is a static method of String class , which … shane\\u0027s landscaping