Question: I want to read data from one column of datagridview. My datagridview contains many columns but I want to read all cells but only from one column. I read all columns using this code:

```
foreach (DataGridViewColumn col in dataGridView1.Columns)
        col.Name.ToString();

```

But I want to read all cell from particular column.

Answer: 
Maybe this helps too. To get one cell:

```
string data = (string)DataGridView1[iCol, iRow].Value;

```

Then you can simply loop rows and columns.

[Documentation](http://msdn.microsoft.com/ru-ru/library/ms158656.aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-2).
try this 

```
foreach (DataGridViewRow row in dataGridView1.Rows)
        {
            foreach (DataGridViewCell cell in row.Cells)
            {
                if (cell.ColumnIndex == 0) //Set your Column Index
                {
                //DO your Stuff here..
                }
            }
         }

```

or the other way

```
       foreach (DataGridViewColumn col in dataGridView1.Columns)
            {
                if (col.Name == "MyColName")
                {
               //DO your Stuff here..
                }
            }

```