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 down,with 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.

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

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Answers (3)