Creating columns in listView and add items

Question

I m learning how to use the listView in a windowsForm and I have some problems that I hope to solve here  The first thing is when I m creating the columns with the code below   private void initListView                    Add columns         lvRegAnimals Columns Add  Id   -3 HorizontalAlignment Left           lvRegAnimals Columns Add  Name   -3  HorizontalAlignment Left           lvRegAnimals Columns Add  Age   -3  HorizontalAlignment Left           When I run the program  the name of the columns are not visible  they are all at the left corner  and I have to  drag  them to be able to read the text  What have I done wrong   And finally I wonder how I add items to the columns  Do I first create a object like   ListViewItem item1   new ListViewItem       item1 SubItems Add  text      Is each listViewItem objects a column or a row  How do I add rows of info  Preciate some help  Thanks

User · Answer

I didn t see anyone answer this correctly   So I m posting it here   In order to get columns to show up you need to specify the following line   lvRegAnimals View   View Details    And then add your columns after that   lvRegAnimals Columns Add  Id   -2  HorizontalAlignment Left   lvRegAnimals Columns Add  Name   -2  HorizontalAlignment Left   lvRegAnimals Columns Add  Age   -2  HorizontalAlignment Left     Hope this helps anyone else looking for this answer in the future

User · Answer

Your first problem is that you are passing -3 to the 2nd parameter of Columns Add  It needs to be -2 for it to auto-size the column  Source  http   msdn microsoft com en-us library system windows forms listview columns aspx  look at the comments on the code example at the bottom   private void initListView            Add columns     lvRegAnimals Columns Add  Id   -2 HorizontalAlignment Left       lvRegAnimals Columns Add  Name   -2  HorizontalAlignment Left       lvRegAnimals Columns Add  Age   -2  HorizontalAlignment Left       You can also use the other overload  Add string   E g    lvRegAnimals Columns Add  Id    lvRegAnimals Columns Add  Name    lvRegAnimals Columns Add  Age      Reference for more overloads  http   msdn microsoft com en-us library system windows forms listview columnheadercollection aspx  Second  to add items to the ListView  you need to create instances of ListViewItem and add them to the listView s Items collection  You will need to use the string   constructor    var item1   new ListViewItem new     id123    Tom    24     var item2   new ListViewItem new    person Id  person Name  person Age    lvRegAnimals Items Add item1   lvRegAnimals Items Add item2     You can also store objects in the item s Tag property    item2 Tag   person    And then you can extract it  var person   item2 Tag as Person    Let me know if you have any questions and I hope this helps

User · Answer

listView1 View   View Details          listView1 Columns Add  Target No    83  HorizontalAlignment Center           listView1 Columns Add     Range      100  HorizontalAlignment Center           listView1 Columns Add   Azimuth    100  HorizontalAlignment Center          i also had same problem    i drag column to left    but now ok    so let s say i have 283 196 size of listview       We declared in the column width  -2 for auto width    For fitting in the listview  we can divide listview width into 3 parts  83 100 100

User · Answer

You need to set property for the control   listView1 View   View Details

[c#] Creating columns in listView and add items

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