How to bind list to dataGridView

Question

I seem to be running around in circles and have been doing so in the last hours   I want to populate a datagridview from an array of strings  I ve read its not possible directly  and that I need to create a custom type that holds the string as a public property  So I made a class   public class FileName               private string  value           public FileName string pValue                         value   pValue                     public string Value                       get                                return  value                            set    value   value                      this is the container class  and it simply has a property with the value of the string  All I want now is that string to appear in the datagridview  when I bind its datasource to a List    Also I have this method  BindGrid   which I want to fill the datagridview with  Here it is       private void BindGrid                 gvFilesOnServer AutoGenerateColumns   false             create the column programatically         DataGridViewTextBoxColumn colFileName   new DataGridViewTextBoxColumn            DataGridViewCell cell   new DataGridViewTextBoxCell            colFileName CellTemplate   cell  colFileName Name    Value           colFileName HeaderText    File Name           colFileName ValueType   typeof FileName              add the column to the datagridview         gvFilesOnServer Columns Add colFileName              fill the string array         string   filelist   GetFileListOnWebServer               try making a List lt FileName gt  from that array         List lt FileName gt  filenamesList   new List lt FileName gt  filelist Length           for  int i   0  i  lt  filelist Length  i                          filenamesList Add new FileName filelist i  ToString                           try making a bindingsource         BindingSource bs   new BindingSource            bs DataSource   typeof FileName           foreach  FileName fn in filenamesList                        bs Add fn                     gvFilesOnServer DataSource   bs          Finally  the problem  the string array fills ok  the list is created ok  but I get an empty column in the datagridview  I also tried datasource  list lt   directly  instead of    bindingsource  still nothing   I would really appreciate an advice  this has been driving me crazy

User · Answer

Instead of create the new Container class you can use a dataTable.

DataTable dt = new DataTable();
dt.Columns.Add("My first column Name");

dt.Rows.Add(new object[] { "Item 1" });
dt.Rows.Add(new object[] { "Item number 2" });
dt.Rows.Add(new object[] { "Item number three" });

myDataGridView.DataSource = dt;

More about this problem you can find here: http://psworld.pl/Programming/BindingListOfString

User · Answer

Using DataTable is valid as user927524 stated  You can also do it by adding rows manually  which will not require to add a specific wrapping class   List lt string gt  filenamesList        foreach string filename in filenamesList        gvFilesOnServer Rows Add new object   filename      In any case  thanks user927524 for clearing this weird behavior

User · Answer

may be little late but useful for future  if you don t require to set custom properties of cell and only concern with header text and cell value then this code will help you  public class FileName                 DisplayName  File Name          public string FileName  get set         DisplayName  Value          public string Value  get set       and then you can bind List as datasource as  private void BindGrid         var filelist   GetFileListOnWebServer   ToList            gvFilesOnServer DataSource   filelist ToArray        for further information you can visit this page Bind List of Class objects as Datasource to DataGridView  hope this will help you

User · Answer

I know this is old  but this hung me up for awhile  The properties of the object in your list must be actual  properties   not just public members   public class FileName                public string ThisFieldWorks  get set        public string ThisFieldDoesNot

User · Answer

Use a BindingList and set the DataPropertyName-Property of the column   Try the following       private void BindGrid         gvFilesOnServer AutoGenerateColumns   false         create the column programatically     DataGridViewCell cell   new DataGridViewTextBoxCell        DataGridViewTextBoxColumn colFileName   new DataGridViewTextBoxColumn                 CellTemplate   cell           Name    Value           HeaderText    File Name           DataPropertyName    Value     Tell the column which property of FileName it should use              gvFilesOnServer Columns Add colFileName        var filelist   GetFileListOnWebServer   ToList        var filenamesList   new BindingList lt FileName gt  filelist       lt -- BindingList        Bind BindingList directly to the DataGrid  no need of BindingSource     gvFilesOnServer DataSource   filenamesList

[c#] How to bind list to dataGridView?

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