How to set the cell width in itextsharp pdf creation

Question

How can I set cell width and height in itextsharp pdf cell ceration using c#. I just use

cell.width = 200f;

But it should display the error

Answer 1

int  count=Gridview1.Columns.Count
PdfPTable table = new PdfPTable(count);
float[] columnWidths = new float[count];
for (int v = 0; v < count; v++)
{
    if (v == 0) { 
    columnWidths[v] = 10f;
    }
    else if (v == 2)
    {
        columnWidths[v] = 30f;
    }
    else if(v == 3)
    {
        columnWidths[v] = 15f;
    }
    else if(v == 4)
    {
        columnWidths[v] = 18f;
    }
    else if(v == 5|| v == 6|| v == 7)
    {
        columnWidths[v] = 22f;
    }
    else
    {
        columnWidths[v] = 20f;
    }
}

table.SetWidths(columnWidths);