How to Change Gridview background Row colour dynamically in asp.net & c#

In this article I will explain how to Change Gridview background Row colour dynamically in ASP.NET & C#.NET

Write the below code in GridViewRow data bound event.

Below code is very useful for conditions based.

 protected void gvNew_RowDataBound(object sender, GridViewRowEventArgs e)

    {

        DataRowView drv = (DataRowView)e.Row.DataItem;

                 if (e.Row.RowType == DataControlRowType.DataRow)

        {

            Label lblCategoryMain = (Label)e.Row.FindControl("lblCostCategory");

            if (lblCategoryMain != null)

            {

                if (lblCategoryMain.Text == "1")

                {

                                        e.Row.Cells[1].BackColor =   System.Drawing.Color.LightGray;

                    e.Row.Cells[1].ForeColor = System.Drawing.Color.Black;

                }

                if (lblCategoryMain.Text == "2")

                {

                    e.Row.Cells[1].BackColor = System.Drawing.Color.Gray;

                    e.Row.Cells[1].ForeColor = System.Drawing.Color.Black;

                }

                if (lblCategoryMain.Text.Trim() == "3")

                {

                    e.Row.Cells[1].BackColor = System.Drawing.Color.LightGreen;

                    e.Row.Cells[1].ForeColor = System.Drawing.Color.Black;

                }

                if (lblCategoryMain.Text == "4")

                {

                    e.Row.Cells[1].BackColor = System.Drawing.Color.LightSeaGreen;

                    e.Row.Cells[1].ForeColor = System.Drawing.Color.Black;

                }

            }

        }