గ్రిడ్ వ్యూ లో కొన్ని  ఆపరేషన్లు

BoundField in Grid view and bind the data to each field using “Edit Column” option in smarttag of grid view.

We can also add images to Edit and Delete option in Grid view “edit columns” by adding a “commandfield”.

String con1 = ConfigurationManager.ConnectionStrings[“con”].ToString();

DataSet ds = new DataSet();

protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)

{

GridView1.EditIndex = -1;

bindata();

}

protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)

{

string i = GridView1.DataKeys[e.RowIndex].Value.ToString();

int j = Convert.ToInt32(i);

TextBox t1 = new TextBox();

t1 = (TextBox)GridView1.Rows[e.RowIndex].Cells [0].Controls [0];

TextBox t2 = new TextBox();

t2 = (TextBox)GridView1.Rows[e.RowIndex].Cells [1].Controls [0];

TextBox t3 = new TextBox();

t3 = (TextBox)GridView1.Rows[e.RowIndex].Cells [2].Controls [0];

SqlConnection con = new SqlConnection(con1);

string upt = “update Allergies set Allergy = @allergy, Symptoms = @symptom, Action_to_be_taken =@action where Allergy_id=” + j;

SqlCommand cmd = new SqlCommand(upt, con);

cmd.Parameters.Add(“@allergy”, SqlDbType.VarChar).Value = t1.Text;

cmd.Parameters.Add(“@symptom”, SqlDbType.VarChar).Value = t2.Text;

cmd.Parameters.Add(“@action”, SqlDbType.VarChar).Value = t3.Text;

con.Open();

cmd.ExecuteNonQuery();

con.Close();

GridView1.EditIndex = -1;

bindata();

}

protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)

{

GridView1.EditIndex = e.NewEditIndex;

bindata();

}

protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)

{

string i = GridView1.DataKeys[e.RowIndex].Value.ToString();

int j = Convert.ToInt32(i);

SqlConnection con = new SqlConnection(con1);

string del = “Delete from Allergies where Allergy_id=” + j;

SqlCommand cmd = new SqlCommand(del, con);

con.Open();

cmd.ExecuteNonQuery();

con.Close();

GridView1.EditIndex = -1;

bindata();

}