How can I change my gridview PageIndexChanging event work if I make any Filter to data?

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Hi,
I have my grid view and PageIndexChanging event is work fine .But when I make any filtration to my data depending on certain condition and bind the filtred data to my gridview ,for the 1st page it works correctly and then for other pages it loads the same data as previous i.e before filtration.

Can any boy tell me how to handle this type of situation??

C#

protected void gvEmployees_PageIndexChanging(object sender, GridViewPageEventArgs e)
  {
      gvEmployees.PageIndex = e.NewPageIndex;
      LoadData();
  }

XML

public void LoadData()
    {
        List<employee> employees = employeeService.GetAllEmployees();
        gvEmployees.DataSource = employees;
        gvEmployees.DataBind();
}

//filtering  employee by salary
protected void btnSearch_Click(object sender, EventArgs e)
    {
string sal= txtSal.Text;
  var employees = employeeService.SearchEmployeeByType(sal);
           
                gvEmployees.DataSource = employees;
                gvEmployees.DataBind();
}</employee>

Posted 27-Mar-15 2:09am

Member 11246037

Updated 27-Mar-15 2:49am

RajeeshMenoth

v3

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Suvendu Shekhar Giri · Answer 1 · 2015-03-27T02:26:00

Need to do few small changes your LoadData() method like

C#

public void LoadData()
{
        string sal= txtSal.Text;
        var employees; 
        if(sal.Trim().Equals(string.Empty))
        {
           employees= employeeService.GetAllEmployees();
        }
        else
        {
           employees = employeeService.SearchEmployeeByType(sal);
        }
        gvEmployees.DataSource = employees;
        gvEmployees.DataBind();
}

This should do your job !
Hope, it helps :)