ASP.NET

solo_gaurav wrote:

i want to hide all fields from gridview when there is no value in the cell found in a row of gridview

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.Odbc;

public partial class Default2 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!this.IsPostBack)
        {
            // Define the ADO.NET objects for selecting products from the database.
            string selectSQL = "SELECT * FROM test ";
            OdbcConnection con = new OdbcConnection("Dsn=PostgreSQL35W123;uid=postgres;pwd=abc");
            OdbcCommand cmd = new OdbcCommand(selectSQL, con);
            // Open the connection.
            con.Open();
            // Define the binding.
            cmd.Connection = con;
            DropDownList1.DataSource = cmd.ExecuteReader();
            DropDownList1.DataTextField = "Journal_Title";
            //   DropDownList1.DataValueField = "year1974";
            // Activate the binding.
            this.DataBind();
            con.Close();
            // Make sure nothing is currently selected in the list box.
            DropDownList1.SelectedIndex = -1;
        }
    }
    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        string selectSQL = "SELECT * FROM test where Journal_Title='" + DropDownList1.SelectedItem.Text + "'";
        OdbcConnection con = new OdbcConnection("Dsn=PostgreSQL35W123;uid=postgres;pwd=abc");
        OdbcCommand cmd = new OdbcCommand(selectSQL, con);
        // Open the connection.
        con.Open();
        // Define the binding.
        cmd.Connection = con;
        cmd.ExecuteNonQuery();
        OdbcDataReader dr = cmd.ExecuteReader();
        if (dr.HasRows)
        {
            GridView1.DataSource = dr;
            GridView1.DataBind();
            Label1.Text = "found";
        }
        else
        {
            Label1.Text = "not found";
        }

        //Label1.Text = "Your favorite country is: " + DropDownList1.SelectedItem.Text;

    }
}

solo_gaurav wrote:

if (dr.HasRows)
{
GridView1.DataSource = dr;
GridView1.DataBind();
Label1.Text = "found";
}

Abhishek Sur wrote:

I believe reportdatasource(_rdc) expects IEnumerable Collection, while you are passing DataTable, which is not an IEnumerable Collection. So it throws the error.

Employees.EmployeesDataTable _emp;
_emp=_emp_adapter.Get_Employees_By_Dept(deptid);
DataTable dt = _emp.Table;
_rdc.SetDataSource(dt);

if(!Page.IsPostBack)
   {
    //BindGridViewData. 
   }

comp_j wrote:

How do am I get selected row's data (Like ID)?

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
   {
       int  ID= Int32.Parse(GridView1.Rows[GridView1.SelectedIndex].Cells[0].Text);
   }

<th class="RowHeader2Cell1" align="left" style="white-space:nowrap;">Asset Name</th>