/// <summary>
/// Method Name:BtnRecords_Click
/// Description:Display Records After Sorting Parameter Selected by User
/// Author:Bhumi
/// Created On:25/6/2015
/// </summary>
protected void BtnRecords_Click(object sender, EventArgs e)
{
try
{
//Sorting According to Dropdownlist Selection
//Datacontext from LINQ Class
Dtcontext = new DataContext(ConfigurationManager.ConnectionStrings["LINQ_ConnectionString"].ConnectionString);
//Table from LINQ Class
Emptbl = Dtcontext.GetTable <EmployeeDetail>();
//Store the value of Sorting Parameter Selected by User using Dropdownlist
SortParameter = ddlSort.SelectedItem.Text;
if (SortParameter == "Name")
{
SortColumn = SortParameter;
ShowData();
}
else if (SortParameter == "Address")
{
SortColumn = SortParameter;
ShowData();
}
else if (SortParameter == "Email")
{
SortColumn = SortParameter;
ShowData();
}
else if (SortParameter == "Salary")
{
SortColumn = SortParameter;
ShowData();
}
else
{
objconstant = new ConstantMessages();
ClientScript.RegisterStartupScript(this.GetType(), "msgbox", "alert('" + objconstant.stralertSortBy + "');", true);
}
}
catch (Exception)
{
objconstant = new ConstantMessages();
Response.Redirect(objconstant.strErrorPage);
}
finally
{
dt_emp = null;
objconstant = null;
Emptbl = null;
row = null;
}
}
/// <summary>
/// Method Name:Page_Load
/// Description:Sorting in Gridview using header row
/// Author:Bhumi
/// Created On:24/6/2015
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
try
{
if (ViewState["Employeetable"] == null)
{
//Datacontext from LINQ Class
Dtcontext = new DataContext(ConfigurationManager.ConnectionStrings["LINQ_ConnectionString"].ConnectionString);
//Table from LINQ Class
Emptbl = Dtcontext.GetTable <EmployeeDetail>();
dt_emp.Columns.Add("Name");
dt_emp.Columns.Add("Address");
dt_emp.Columns.Add("Email");
dt_emp.Columns.Add("Salary", typeof(decimal));
var query = from i in Emptbl
select new { i.Name, i.Address, i.Email, i.Salary };
// Create a table from the query.
foreach (var rowObj in query)
{
row = dt_emp.NewRow();
dt_emp.Rows.Add(rowObj.Name, rowObj.Address, rowObj.Email, rowObj.Salary);
}
//Datasource and binding to Gridview
if (dt_emp == null)
{
LblEmpty.Visible = true;
}
else
{
gvEmployeeDetails.DataSource = dt_emp;
gvEmployeeDetails.DataBind();
ViewState["Employeetable"] = dt_emp;
}
}
}
catch (Exception)
{
objconstant = new ConstantMessages();
Response.Redirect(objconstant.strErrorPage);
}
finally
{
objconstant = null;
}
}
/// <summary>
/// Method Name:gvEmployeeDetails_Sorting
/// Description:Sorting in Gridview
/// Author:Bhumi
/// Created On:24/6/2015
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void gvEmployeeDetails_Sorting(object sender, GridViewSortEventArgs e)
{
try
{
string SortDireaction = ViewState["_sortDirection"] as string; //Store Sorting Operation in Viewstate
SetSortDirection(SortDireaction); //Call Method
if (ViewState["Employeetable"] != null)
{
//Sort the data.
dt_emp = ((DataTable)ViewState["Employeetable"]);
dt_emp.DefaultView.Sort = e.SortExpression + " " + _sortDirection;
gvEmployeeDetails.DataSource = dt_emp;
gvEmployeeDetails.DataBind();
SortDireaction = _sortDirection;
ViewState["_sortDirection"] = SortDireaction;
//Checking the HeaderRow Cells where to put sorting image
foreach (DataControlFieldHeaderCell headerCell in gvEmployeeDetails.HeaderRow.Cells)
{
if (headerCell.ContainingField.SortExpression == e.SortExpression)
{
columnIndex = gvEmployeeDetails.HeaderRow.Cells.GetCellIndex(headerCell);
}
}
gvEmployeeDetails.HeaderRow.Cells[columnIndex].Controls.Add(sortImage);//ADD Image on Header Cell
string sortExpression = e.SortExpression;
ViewState["SearchSort"] = sortExpression;
ViewState["SortDirection"] = _sortDirection;
}
}
catch (Exception)
{
objconstant = new ConstantMessages();
Response.Redirect(objconstant.strErrorPage);
}
finally
{
dt_emp = null;
objconstant = null;
}
}
/// <summary>
/// Method Name:ShowData
/// Description:Datasource & Databinding with Control and set the Paging Feature code
/// Author:Bhumi
/// Created On:25/6/2015
/// </summary>
public void ShowData()
{
try
{
//Datacontext from LINQ Class
Dtcontext = new DataContext(ConfigurationManager.ConnectionStrings["LINQ_ConnectionString"].ConnectionString);
//Table from LINQ Class
Emptbl = Dtcontext.GetTable <EmployeeDetail>();
if (Emptbl == null)
{
LblEmpty.Visible = true;//No Records
}
else
{
if (SortColumn == null || SortColumn == "--SELECT--")
{
dt_emp = new DataTable();
dt_emp.Columns.Add("Name");
dt_emp.Columns.Add("Address");
dt_emp.Columns.Add("Email");
dt_emp.Columns.Add("Salary");
var queryDefault = from i in Emptbl
select new { i.Name, i.Address, i.Email, i.Salary };
foreach (var rowObj in queryDefault)
{
row = dt_emp.NewRow();
dt_emp.Rows.Add(rowObj.Name, rowObj.Address, rowObj.Email, rowObj.Salary);
}
}
else
{
if (SortColumn == "Name")
{
dt_emp = new DataTable();
dt_emp.Columns.Add("Name");
dt_emp.Columns.Add("Address");
dt_emp.Columns.Add("Email");
dt_emp.Columns.Add("Salary");
string SortVar = SortColumn;
var querySort = from i in Emptbl
orderby i.Name ascending
select new { i.Name, i.Address, i.Email, i.Salary };
// Create a table from the query.
foreach (var rowObj in querySort)
{
row = dt_emp.NewRow();
dt_emp.Rows.Add(rowObj.Name, rowObj.Address, rowObj.Email, rowObj.Salary);
}
}
if (SortColumn == "Address")
{
dt_emp = new DataTable();
dt_emp.Columns.Add("Name");
dt_emp.Columns.Add("Address");
dt_emp.Columns.Add("Email");
dt_emp.Columns.Add("Salary");
string SortVar = SortColumn;
var querySort = from i in Emptbl
orderby i.Address ascending
select new { i.Name, i.Address, i.Email, i.Salary };
// Create a table from the query.
foreach (var rowObj in querySort)
{
row = dt_emp.NewRow();
dt_emp.Rows.Add(rowObj.Name, rowObj.Address, rowObj.Email, rowObj.Salary);
}
}
if (SortColumn == "Email")
{
dt_emp = new DataTable();
dt_emp.Columns.Add("Name");
dt_emp.Columns.Add("Address");
dt_emp.Columns.Add("Email");
dt_emp.Columns.Add("Salary");
string SortVar = SortColumn;
var querySort = from i in Emptbl
orderby i.Email ascending
select new { i.Name, i.Address, i.Email, i.Salary };
// Create a table from the query.
foreach (var rowObj in querySort)
{
row = dt_emp.NewRow();
dt_emp.Rows.Add(rowObj.Name, rowObj.Address, rowObj.Email, rowObj.Salary);
}
}
if (SortColumn == "Salary")
{
dt_emp = new DataTable();
dt_emp.Columns.Add("Name");
dt_emp.Columns.Add("Address");
dt_emp.Columns.Add("Email");
dt_emp.Columns.Add("Salary");
string SortVar = SortColumn;
var querySort = from i in Emptbl
orderby i.Salary ascending
select new { i.Name, i.Address, i.Email, i.Salary };
// Create a table from the query.
foreach (var rowObj in querySort)
{
row = dt_emp.NewRow();
dt_emp.Rows.Add(rowObj.Name, rowObj.Address, rowObj.Email, rowObj.Salary);
}
}
}
//Code for Paging Facility For Data controls
pgd = new PagedDataSource();
//Datasource for page
pgd.DataSource = dt_emp.DefaultView;
pgd.CurrentPageIndex = CurrentPageIndex;//Assign Current Page Index
pgd.AllowPaging = true;
pgd.PageSize = 5;
//Enable Disable & Visible or not for Next Pre Buttons
LBtnNext.Enabled = !(pgd.IsLastPage);
if (!(pgd.IsLastPage))
{
LBtnNext.Visible = true;
}
if (pgd.IsFirstPage)
{
LBtnPre.Visible = false;
}
LBtnPre.Enabled = !(pgd.IsFirstPage);
if (!(pgd.IsFirstPage))
{
LBtnPre.Visible = true;
}
if (pgd.IsLastPage)
{
LBtnNext.Visible = false;
}
//Label Text for Total and Current Page
LblCurrent.Text = (CurrentPageIndex + 1).ToString();
LblTotal.Text = (pgd.PageCount).ToString();
//Databinding
RptEmpDetails.DataSource = pgd;
RptEmpDetails.DataBind();
DlEmpDetails.DataSource = pgd;
DlEmpDetails.DataBind();
}
}
catch (Exception)
{
objconstant = new ConstantMessages();
Response.Redirect(objconstant.strErrorPage);
}
finally
{
dt_emp = null;
objconstant = null;
Emptbl = null;
row = null;
pgd = null;
}
}
protected void Page_Load(object sender, EventArgs e)
{
objconstant = new ConstantMessages();
Response.Write(objconstant.strErrormessage);
}
