How to put data from List<string []> to dataGridView
- by Kirill
Try to put some data from List to dataGridView, but have some problem with it.
Currently have method, that return me required List - please see picture below
code
public List<string[]> ReadFromFileBooks()
{
List<string> myIdCollection = new List<string>();
List<string[]> resultColl = new List<string[]>();
if (chooise == "all")
{
if (File.Exists(filePath))
{
using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
StreamReader sr = new StreamReader(fs);
string[] line = sr.ReadToEnd().Split(new string[] { Environment.NewLine },
StringSplitOptions.RemoveEmptyEntries);
foreach (string l in line)
{
string[] result = l.Split(',');
foreach (string element in result)
{
myIdCollection.Add(element);
}
resultColl.Add(new string[] { myIdCollection[0], myIdCollection[1], myIdCollection[2], myIdCollection[3] });
myIdCollection.Clear();
}
sr.Close();
return resultColl;
}
}
....
this return to me required data in requred form (like list from arrays).
After this, try to move it to the dataGridView, that already have 4 columns with names (because i'm sure, that no than 4 colums required) - please see pic below
Try to put data in to dataGridView using next code
private void radioButtonViewAll_CheckedChanged(object sender, EventArgs e)
{
TxtLibrary myList = new TxtLibrary(filePathBooks);
myList.chooise = "all";
//myList.ReadFromFileBooks();
DataTable table = new DataTable();
foreach (var array in myList.ReadFromFileBooks())
{
table.Rows.Add(array);
}
dataGridViewLibrary.DataSource = table;
}
But as result got error - "required more rows that exist in dataGridVIew", but accordint to what I'm see (pic above) q-ty of rows (4) equal q-ty of arrays element in List (4).
Try to check result by putting additional temp variables - but it's ok - please see pic below
Where I'm wrong? Maybe i use dataGridView not in correct way?
