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).
**FOREACH LOOP**

```
string data = string.Empty;
string data = string.Empty;
int indexOfYourColumn = 0;
int indexOfYourColumn = 0;
foreach (DataGridViewRow row in dataGridView1.Rows)
foreach (DataGridViewRow row in dataGridView1.Rows)
   data = row.Cells[indexOfYourColumn].Value;

```

**FOR LOOP**

```
using System.Collections;

string data = string.Empty;
int indexOfYourColumn = 0;

IList list = dataGridView1.Rows;

for (int i = 0; i < list.Count; i++)
{
  DataGridViewRow row = (DataGridViewRow)list[i];
   data = row.Cells[indexOfYourColumn].Value;
  data = Convert.ToDecimal(row.Cells[indexOfYourColumn].Value);
}

```