Question

When I export my data into excel, it loads up the columns but doesn’t expand the columns. It shows the data without having to double click on the line to expand the columns. Can I write some code which will automatically auto-adjust the columns so that the cells can show the entire data? I’m using asp.net and c#.

The first picture is what it currently looks like & the second shows what I want it to look like.

protected void Button1_Click(object sender, EventArgs e)
{
    Response.Clear();
    Response.Buffer = true;

    DataSet dataSet = new DataSet();

    SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["ISALog1ConnectionString"].ToString());
    SqlCommand cmd = new SqlCommand("exec ProxyReport", conn);
    cmd.CommandTimeout = 200;
    SqlDataAdapter ad = new SqlDataAdapter(cmd);
    ad.Fill(dataSet);

    GridView1.DataSource = dataSet.Tables[0];
    GridView1.DataBind();
    GridView2.DataSource = dataSet.Tables[1];
    GridView2.DataBind();
    GridView3.DataSource = dataSet.Tables[2];
    GridView3.DataBind();

    dataSet.Tables[0].TableName = "1";
    dataSet.Tables[1].TableName = "2";
    dataSet.Tables[2].TableName = "3";

    int count = 3;

    ExcelPackage pack = new ExcelPackage();


    for (int i = 1; i <= count; i++)
    {
        DataTable table = dataSet.Tables[i.ToString()];
        ExcelWorksheet ws = pack.Workbook.Worksheets.Add("Top" + i);
        ws.Cells["A1"].LoadFromDataTable(table, true);
    }  

            Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            Response.AddHeader("content-disposition", "attachment;  filename=ExcelExport.xlsx");
            Response.BinaryWrite(pack.GetAsByteArray());
            Response.Flush();
            Response.End();
  }

Answer 1

Excel.Range range;

range = ws.get_Range("A1", "1");
range.AutoFit();

MSDN