I have been developing a webpage which uses n number of dropdownlists which are binding dynamically inside a gridview. I want to perform operations based on the dropdownlist's selectedindexchanged event. I had done that and working good, but when I changed dropdownlist on second time It does postback but not calls the event.
You can see my code here
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="gridDropDownTest.aspx.cs"
Inherits="gridDropDownTest" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
public partial class gridDropDownTest : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
databind();
}
public void databind()
{
DataTable dt = new DataTable();
dt.Columns.Add("Mode");
dt.Rows.Add("");
dt.Rows.Add("");
gridLedgeDetails.DataSource = dt;
gridLedgeDetails.DataBind();
}
protected void OnRowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DropDownList ddlMode = new DropDownList();
ddlMode.Width = 90;
ddlMode.Attributes.Add("style", "background-color:#ff6600;");
ddlMode.Items.Add("Regular");
ddlMode.Items.Add("Monthwise");
ddlMode.SelectedIndexChanged += new EventHandler(ddlMode_Indexchanged);
ddlMode.AutoPostBack = true;
ddlMode.ID = "ddlMode_";
e.Row.Cells[0].Controls.Add(ddlMode);
}
}
protected void gridLedgeDetails_DataBound(object sender, EventArgs e) { }
protected void ddlMode_Indexchanged(object sender, EventArgs e)
{
string uid = this.Page.Request.Params.Get("__EVENTTARGET");
if (uid != null && uid.Contains("ddlMode_"))
{
string[] values = uid.Split('$');
string row = values[1].Replace("ctl", "");
Control ctrl = Page.FindControl(uid);
DropDownList ddl = (DropDownList)ctrl;
if (ddl.SelectedIndex == 1)
{
}
}
}
}
enter image description here
JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)
