GridView Dropdown control's event cannot access in ASP.NET

Question

Sir I have in the problem of cannot write GridView DropdownList SelectIndexChanged Event in ASP.NET. I cannot click on the DropdownList Control and to invoke SelectIndex Changed Event. get selected the GridView wholly. I cannot access a individual control inside the gridview. Please help me on this difficulty GridView looks like this:- and the html code is:- HTML CODE START GridLines=None AutoGenerateColumns=False onrowdatabound=GridView1_RowDataBound ForeColor=#333333 > HTML CODE END

Usha Raj · Answer

please write the selectedindex event for each drop downwith in each event to get the id of particular item you should mention like protected void dropdown_SelectedIndexChanged(object sender EventArgs e) { for (int i = 0; i { DropDownList name = (DropDownList)GridView1.Rows[i].FindControl(dropdownname); string str = name.ID; if ( name.SelectedValue==1) { } if (name.SelectedValue == 2) { } } } like this you should write for each dropdown then only you get the selection id of particular item name

Bineesh VP · Answer

Hi The html code to define the DropdownList is:- The html code highlighted is the code for the DropDownList. I write a code for SelectedIndexChanged Event like this : OnselectIndexChanged=ddlProductSelectIndexChanged and wrote a event to handle this but in vain not firing the event:- protected void ddlProduct_SelectIndexChanged(object sender GridViewRowEventArgs e) { try { string strCon = ConfigurationManager.ConnectionStrings[ORDERS].ToString(); SqlConnection sqlCon = new SqlConnection(strCon); sqlCon.Open(); DropDownList ddlProduct = (DropDownList)GridView1.Rows[0].FindControl(ddlProduct); SqlCommand cmd = new SqlCommand(getProductRateforCombo sqlCon); cmd.Parameters.Add(@as_itemValue SqlDbType.Decimal).Value = ddlProduct.SelectedValue; cmd.CommandType = CommandType.StoredProcedure; SqlDataAdapter adapter = new SqlDataAdapter(cmd); DataSet ds=new DataSet(); adapter.Fill(ds); if (ds.Tables[0].Rows.Count > 0) { TextBox txtRate = (TextBox)GridView1.Rows[0].FindControl(txtRate); txtRate.Text = ds.Tables[0].Rows[0][Mrp].ToString(); } } catch (Exception ex) { throw; } }

Deepak Saini · Answer

Dear bineesh If make the event on the control u can easily access easily control event. where r u put the control u make a event on that and put your code.i hope its work fine.