Dynamic button array,Paging and select/unselect checkbox using c#

• Need to solve the paging issue and triggering of dynamic buttons. without using OnInit() paging is working fine but the dynamic buttons will not fire

  //Pageload if (!IsPostBack) { Bind(); }

  protected override void OnInit(EventArgs e) { Bind(); }

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

  { //some code foreach (string item in split_old_transaction_id) { buttonArray[i] = new LinkButton(); buttonArray[i].ID = item; buttonArray[i].Text = item; buttonArray[i].CommandName = "Select_related_co"; buttonArray[i].CommandArgument = item; buttonArray[i].CausesValidation = false; e.Row.Cells[7].Controls.Add(buttonArray[i]); i++; } }

  protected void OnCheckedChanged(object sender, EventArgs e) { bool isUpdateVisible = false; CheckBox chk = (sender as CheckBox); if (chk.ID == "check_all") { foreach (GridViewRow row in GridView1.Rows) { if (row.RowType == DataControlRowType.DataRow) { row.Cells[15].Controls.OfType().FirstOrDefault().Checked = chk.Checked;

          }
      }
  }
  
  
  foreach (GridViewRow row in GridView1.Rows)
  {
      if (row.RowType == DataControlRowType.DataRow)
      {
          bool isChecked = row.Cells[15].Controls.OfType<CheckBox>().FirstOrDefault().Checked;
          for (int i = 1; i < row.Cells.Count; i++)
          {
             row.Cells[14].Controls.OfType<Label>().FirstOrDefault().Visible = !isChecked;
              row.Cells[13].Controls.OfType<Label>().FirstOrDefault().Visible = !isChecked;
              if (row.Cells[i].Controls.OfType<TextBox>().ToList().Count > 0)
              {
                  row.Cells[i].Controls.OfType<TextBox>().FirstOrDefault().Visible = isChecked;
              }
  
              if (isChecked && !isUpdateVisible)
              {
                  isUpdateVisible = true;
              }
  
          }
      }
  }
  
  

  }

  protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e) {

  GridView1.PageIndex = e.NewPageIndex; BindTransactionsPerCustomer();

  }

  protected void ddl_PageSize_SelectedIndexChanged(object sender, EventArgs e) { if (ddl_PageSize.SelectedValue != "--") { GridView1.PageSize = Convert.ToInt32(ddl_PageSize.SelectedValue); BindTransactionsPerCustomer(); } }

  ASPX CODE

  ---

              </HeaderTemplate>
              <ItemTemplate>
                  <asp:Label ID="Label22" runat="server" Text="EDIT"></asp:Label>
                  <asp:CheckBox ID="CheckBox1" runat="server" CssClass="gridcheckbox" Checked="false" AutoPostBack="true" OnCheckedChanged="OnCheckedChanged" />
              </ItemTemplate>
  
  

  output