Dot Net Implementations

  Create a Link Button using Template Field.  Create an event of link button- Steps- 1. Select the Grid View.  2. Go to source. 3. Create the Event 'OnClick' in Link Button's attribute.  4. Create the Event of link button in code window-  protected void send_click(object sender, EventAgrs e) { // activate the control GridViewRow gr1 = ((LinkButton)sender.NamingContainer as GridViewRow;  // find control  LinkButton l1 = (LinkButton) gr1.FindControl("lb1"); ; Session["name"] = gr1.Cells[0].Text; Session["amu"] =  gr1.Cells[1].Text;  Response.Redirect("NextPage.aspx"); } 2. We have to call the Session in the page_load event of NextPage-  protected void Page_load(object sender, EventArgs e) { Label1.Text = (string) Session["name"]; Label2.Text = (string) Session["amu"]; } 

WRITE THE CODE FOR FIND BUTTON TO FIND THE DATA AND IMAGE WITH THE REFERENCE OF USER ID-     FIND BUTTON CODING-      protected void Find_Click(object sender, EventArgs e)     {         string k = @"Data Source=49.50.88.43;Initial Catalog=grkistdb;Persist Security Info=True;User ID=grkistuser;Password=q2oR5w_356";         cn = new SqlConnection(k);         cn.Open();         string q = "select * from addhar where id='" + TextBox1.Text + "'";         cm = new SqlCommand(q, cn);         dr=cm.ExecuteReader();         if (dr.Read())         {             TextBox2.Text = dr["name"].ToString();             TextBox3.Text = dr["address"].ToString();             Image1.ImageUrl = "~/pics/" + dr["status"].ToString();             Label1.Text = dr["status"].ToString();         }         else         {             dr.Close();             Response.Write("Records not matched");         }     }

  Q. Insert checkbox and textbox in grid view and create a column in data base table named "Attendence" when a user Select the record using checkbox and input present/absent in textbox should be reflected to the database table. Update Selection(button)  Code-  {         string s = @"Data Source=49.50.88.43;Initial Catalog=grkistdb;Persist Security Info=True;User ID=grkistuser;Password=q2oR5w_356";         cn = new SqlConnection(s);         cn.Open();         foreach (GridViewRow gr1 in GridView1.Rows)         {             CheckBox c1 = (CheckBox) gr1.FindControl("cb1");             TextBox t1 = (TextBox)gr1.FindControl("tb1");             if (c1.Checked)             {                                  string q = "update Chitransh_reg set Attendance ='" + t1.Text + "' where roll='"+gr1.Cells[1].Text+"'";                    cm = new SqlCommand(q, cn);                                  cm.ExecuteNonQuery(

  1. Registration page(Design)  Note:- We used Range validator in Age 's textbox.  Coding- using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls;  using System.Data.SqlClient; public partial class Registration : System.Web.UI.Page {     SqlConnection cn;     SqlCommand cm;     SqlDataReader dr;     protected void Page_Load(object sender, EventArgs e)     {     }      //Coding of submit button     protected void Button1_Click(object sender, EventArgs e)     {         string p=@"Data Source=49.50.88.43;Initial Catalog=grkistdb;Persist Security Info=True;User ID=grkistuser;Password=q2oR5w_356";         cn = new SqlConnection(p);         cn.Open();         string q = "insert into Chitransh_reg values ( '"+TextBox1.Text+"', '"+TextBox2.Text+"', '"+TextBox3.Text+"', '"+DropDownList1.Text+"', '"+TextBox4.Text+&q

  1. display all records of data base-   Query- select * from Chitransh_stu;  2. display the name whose age is lesser than 20- Query-   SELECT name FROM     Chitransh_stu WHERE  (age < 20);  3. display the marks of students with their names whose section is BCA- Query-  SELECT name, marks FROM     Chitransh_stu WHERE  (course = 'BCA'); 4. Delete a record from the table whose address is jabalpur- Query-   DELETE FROM Chitransh_stu WHERE  (address = 'jabalpur'); 5. Delete the records whose marks are greater than 60- Query-   DELETE FROM Chitransh_stu WHERE  (marks < 60); 6. Insert a new record in the table- Query-   INSERT INTO Chitransh_stu                   (roll, name, age, course, address, marks) VALUES (10, 'sidhharth', 34, 'mca', 'jabalpur', 89); 7. Update the course of Students whose marks are greater than 70- Query-   UPDATE Chitransh_stu SET          course = 'MCA' WHERE  (marks > 70); 8. Update the name of a student whose