In ASP. NET click event is triggered after RadioButtonList binds background data

The example in this paper shares the method of binding background data and triggering click events by RadioButtonList

First, place an RadioButtonList control on the foreground page

<asp:RadioButtonList runat="server" ID="RadioButtonList1" BorderStyle="None" RepeatColumns="3" CssClass=""
      RepeatLayout="Flow" AutoPostBack="true" OnSelectedIndexChanged="RadioButtonList1_SelectedIndexChanged">
    </asp:RadioButtonList>

Background binding data of. cs file

namespace BTApp
{
 public partial class Technology : System.Web.UI.Page
 {
  string Id;
  protected void Page_Load(object sender, EventArgs e)
  {
   if (!IsPostBack)
   {
    AspNetPager1.PageSize = 10;
    if (Request.QueryString["Id"] != null)
    {
     Id = Request.QueryString["Id"];
    }
    else
    { Id = ""; }
    GetDataBind(Id);
    DropDownListDataBind();
   }
  }
  //RadioButtonList Bind background data 
  private void DropDownListDataBind()
  {
   ExpertInfoBLL bll = new ExpertInfoBLL();
   DataTable dt = bll.GetDepInfo();
   foreach (DataRow dr in dt.Rows)
   {
    RadioButtonList1.Items.Add(dr["Name"].ToString());// Read the data of the database cyclically 
    
   }
   this.RadioButtonList1.DataSource = dt;
   this.RadioButtonList1.DataTextField = "Name";
   this.RadioButtonList1.DataValueField = "Id";
   this.RadioButtonList1.RepeatDirection = RepeatDirection.Horizontal;
   this.RadioButtonList1.DataBind();
  
  }
  private void GetDataBind(string Id)
  {
   // Here write decoding and database return results 
   TechnologyBLL bll = new TechnologyBLL();
   string strWhere = " 1=1 ";
   if (Id != "" && Id != null)
   {
    strWhere += string.Format(" and a.Depinfo_Id = '{0}'", Id);
   }
   AspNetPager1.RecordCount = bll.GetCountList(strWhere);
   // Bind data  
   DataTable dt = bll.GetList((AspNetPager1.CurrentPageIndex - 1) * AspNetPager1.PageSize, AspNetPager1.PageSize, strWhere, "CreateTime");
   this.Repeater1.DataSource = dt;
   this.Repeater1.DataBind();


  }
  protected void AspNetPager1_PageChanged(object sender, EventArgs e)
  {
   GetDataBind(Id);
  }

// Depending on the selection of radio buttons, id, Trigger event 
  protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
  {
    string Id;
    Id = RadioButtonList1.SelectedValue;
    GetDataBind(Id);
  }
  
 }
}

Method of TechnologyBLL Layer

namespace BTAppBLL
{
 public class TechnologyBLL
 {
  TechnologyDAL dal = new TechnologyDAL();
  public DataTable GetList(int startPage, int pageSize, string where, string orderby)
  {


   DataTable dTable = dal.GetList(startPage, pageSize, where, orderby);
   return dTable;
  }
  public int GetCountList(string where)
  {


   int record = dal.GetCountList(where);
   return record;
  }
  public DataTable GetListShow(string TechnologyId)
  {
   DataTable dTable = dal.GetModel(TechnologyId);
   return dTable;
  }
  public DataTable GetPicture(string TechnologyId)
  {
   DataTable dTable = dal.GetPicture(TechnologyId);
   return dTable;
  }
 }
}

Method of TechnologyDAL Layer

namespace BTAppDAL
{
 public class TechnologyDAL
 {
  public DataTable GetList(int startPage, int pageSize, string where, string orderby)
  {
   string strSql = string.Format("SELECT a.TechnologyId,a.TechnologyName,a.Summarize,a.Effect,a.MainPoint,a.AppropriateArea,a.Attention,a.CreateTime,a.CreatUser,a.UpdateTime,b.Name FROM Technology AS a \n" +
    "left join Sys_DepInfo AS b ON a.Depinfo_Id=b.Id \n" +
    "where a.IsActive='1' and {0} ", where);


   string proc = "proc_CommonPagerWithStatement";
   SqlConnection con = SqlDbHelper.Connection;
   SqlParameter[] sp = { new SqlParameter("@intStartIndex", startPage), 
         new SqlParameter("@intPageSize", pageSize),
         new SqlParameter("@varStatement", strSql), 
         new SqlParameter("@varSortExpression", orderby+" DESC") };
   DataTable dt = SqlDbHelper.GetDataSet(proc, sp, con);
   return dt;


  }
  public int GetCountList(string where)
  {
   int countRecord = 0;
   string strSql = string.Format("select COUNT(TechnologyId) as countRecord from(SELECT a.TechnologyId,a.TechnologyName,a.Summarize,a.Effect,a.MainPoint,a.AppropriateArea,a.Attention,a.CreateTime,a.CreatUser,a.UpdateTime,b.Name FROM Technology AS a \n" +
    "left join Sys_DepInfo AS b ON a.Depinfo_Id=b.Id \n" +
    "where a.IsActive='1' and {0} ) as c", where);
   SqlConnection con = SqlDbHelper.Connection;
   try
   {
    if (con.State == System.Data.ConnectionState.Closed)
     con.Open();
    DataTable dt = SqlDbHelper.GetDataTable(strSql);
    if (dt.Rows.Count > 0)
     countRecord = int.Parse(dt.Rows[0]["countRecord"].ToString());
   }
   catch (Exception)
   {
    throw;
   }
   finally
   {
    if (con.State == ConnectionState.Open)
    {
     con.Close();
    }
   }


   return countRecord;
  }
  public DataTable GetModel(string TechnologyId)
  {
   string strSql = string.Format("SELECT a.TechnologyId,a.TechnologyName,a.Summarize,a.Effect,a.MainPoint,a.AppropriateArea,a.Attention,a.CreateTime,a.CreatUser,a.UpdateTime,b.Name FROM Technology AS a \n" +
    "left join Sys_DepInfo AS b ON a.Depinfo_Id=b.Id \n" +
    "where a.IsActive='1' and a.TechnologyId = '{0}' ", TechnologyId);


   DataTable dataTable = SqlDbHelper.GetDataTable(strSql);
   return dataTable;
  }
  public DataTable GetPicture(string TechnologyId)
  {
   string strSql = string.Format("SELECT TOP 5 a.Files_Id,a.Files_Name,a.Files_Path FROM dbo.Com_Files AS a \n" +
    "LEFT JOIN dbo.Technology AS b ON a.ForeignKey_Id=b.TechnologyId \n" +
    "WHERE b.IsActive=1 and a.ForeignKey_Id = '{0}' ", TechnologyId);


   DataTable dataTable = SqlDbHelper.GetDataTable(strSql);
   return dataTable;
  }
 }
}

Method of ExpertInfoBLL Layer

 public DataTable GetDepInfo()
  {
   DataTable dTable = dal.GetDepInfo();
   return dTable;
  }

Method of ExpertInfoDAL Layer

 public DataTable GetDepInfo()
  {
   try
   {
    StringBuilder str = new StringBuilder(@"SELECT Id,Name FROM dbo.Sys_DepInfo WHERE Is_Active='1' AND DepinfoType='1'");
    DataTable data = SqlDbHelper.GetDataTable(str.ToString());
    if (data.Rows.Count > 0)
    {
     return data;
    }
    else
    {
     return null;
    }
   }
   catch (Exception)
   {
    return null;
   }
  }

Call the DropDownListDataBind () method when the page loads
Trigger the click event of RadioButtonList

 protected void RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
  {
    string Id;
    Id = RadioButtonList1.SelectedValue;
    GetDataBind(Id);
  }

You can click a radio button and trigger an event.

The above is the whole content of this paper, hoping to help everyone's study.