how to access gridview in different class

Question

4.43/5 (3 votes)

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public partial class WebFormAdmin_frmInternalMemo : System.Web.UI.Page { C}

In this class, I've a gridview with ID="gvListMemo"

I need to access this gridview in class named "public class Task { }" which is placed in the folder AppCode/Utility/Task.cs

how do I access it ????

Posted 17-Jan-14 20:06pm

Sriram Ramachandran

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Rahul VB 18-Jan-14 6:24am

A very good question where developers get stuck many times.

2 solutions

Solution 2

Hello,

As Karthik sir said, you can pass that control to the method in another class.Like this :

public Class c1()
  {
   public void method(control c)
   {
       ////perform action on your control
   }
 
  }

  Main:
  
  c1 c = new c1();
  c.method(any_control); ///pass your control

 I can also do something like this : 


  public class c1()
   {
 
   control c;
      public c1(control c)
         {
         this.c = c;

         }


       public void method()
          { 
            ////use this.c to do anything you want, but you will have to type case it to the control you want. for example say to a textbox so
         
            TextBox t = (TextBox)this.c; /// try this out, sometimes throws runtime exception be vigilant while writing this sentence. You must understand the relation between base and derived classes.
            
          }

    }

  
  In the Main method :
  c1 c = new c1(any_control);

Please note, the Control class is the base class of all controls(correct me if i am wrong).
So to make this algorithm generalized i can use the Control type to become the argument of a constructor or a method.

- I have used a constructor because it may happen that during class initialization you want to perform some operation with that control

Thanks,
-Rahul

Posted 18-Jan-14 0:22am

Rahul VB

Comments

Karthik_Mahalingam 18-Jan-14 8:28am

5!

Rahul VB 18-Jan-14 10:11am

thank you sir.
- Rahul

Karthik_Mahalingam 18-Jan-14 10:37am

welcome Rahul :)
No Sir and all,karthik is fine.. :) ... i am a simple programmer..

Rahul VB 18-Jan-14 11:29am

oh gosh you are so humble, ok Karthik, by the way i stayed in Banglore for 10 years, fantastic climate, its a long time now. Cherish those days in school KV banglore.

Karthik_Mahalingam 18-Jan-14 13:09pm

Oh Good, my native is OOTY Tamil nadu, i am working in blr for last 2 years.
climate is good here.
wru now ?

Rahul VB 18-Jan-14 13:38pm

I stay in Pune, i completed my graduation here itself. I am working here. My father is in railways, keeps traveling.

Karthik_Mahalingam 18-Jan-14 13:46pm

oh.. Good.. Still awake ?

Rahul VB 18-Jan-14 13:59pm

yes, haha i sleep for about 4 hours only. Cant sleep haha. You too?

Karthik_Mahalingam 18-Jan-14 14:09pm

i slept at 3 to 7 pm. so not feeling sleepy now :)

Rahul VB 18-Jan-14 14:14pm

oh so you had an off today? thats good. We went to office. We are working on a plc product, sensor event monitoring, a little bit of ladder programming too.

Karthik_Mahalingam 18-Jan-14 14:20pm

progam logic control right ?
remembered while studying in college..
i studied electrical in college..

Rahul VB 18-Jan-14 14:23pm

haha exactly, i have a couple of devices right now with me. My branch was electronics and telecommunication

Karthik_Mahalingam 18-Jan-14 14:58pm

hmm Good.Carry on..

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Karthik_Mahalingam · Accepted Answer · 2014-01-17T20:32:00

Solution 1

You can try like this..

C#

public class Task
   {

       public void DoSomeAction(System.Web.UI.WebControls.GridView gridView)
       {
            // using the gridView object you can perform your desired action

       }

   }

in the Grid Page,

C#

Task objTask = new Task();
           objTask.DoSomeAction(gvListMemo);

Posted 17-Jan-14 20:32pm

Karthik_Mahalingam

Comments

Sriram Ramachandran 18-Jan-14 2:34am

Thanks for your reply Karthik... I'll just try and say you the result

Karthik_Mahalingam 18-Jan-14 2:36am

sure

Sriram Ramachandran 18-Jan-14 2:51am

now i can access it .... but got stuck up with another problem. I'm using thread with timer. As you know, it executes with specific functions like Start(),Stop(), Execute() sequentially. My one of the functionality with timer works fine in Execute function. But need to call that DosomeAction function where i could not pass the gridview value. What am I supposed to do now ???

Execute ()
{
//how to call DoSomeAction function ????
}

public void Dosomeaction(System.Web.UI.WebControls.GridView gridview)
{

}

Karthik_Mahalingam 18-Jan-14 3:02am

using this

Task objTask = new Task();
objTask.DoSomeAction(gvListMemo);

you can call the function..

it depends where you are calling this function. ( in button click , etc .. )

Sriram Ramachandran 18-Jan-14 3:02am

private void Execute()
{
Reminder();
Abeyance();
Dosomeaction();
} I couldn't pass the gridview values in execute function or else this dosomeaction() doesn't run in my program...

Sriram Ramachandran 18-Jan-14 3:09am

Look at this code ....
public class Task
{
public void Execute()
{
Dosomeaction();
}
public void Dosomeaction(gridview )
{
// This runs perfect where I access gridview from another class
}
}

If I didnt call Dosomeaction in execute function, then this function doesn't work at all ...

Karthik_Mahalingam 18-Jan-14 3:37am

public void Execute( System.Web.UI.WebControls.GridView gridView)

try like this

Sriram Ramachandran 18-Jan-14 4:06am

nope, it doesn't work because I called execute like this
private void StartTask()
{
if (!this.Stopped)
{
Thread thread = new Thread(new ThreadStart(Execute));
thread.Start();
}
}

Karthik_Mahalingam 18-Jan-14 4:15am

then try like this
create a public property for gridview in Task class
set the gridview in the grid page

and you can read the variable in the Task class and perform some action...

Sriram Ramachandran 18-Jan-14 4:43am

I m sorry... Can u share some codes regarding that ????

Karthik_Mahalingam 18-Jan-14 4:57am

private void Execute()
{
Reminder();
Abeyance();
Dosomeaction();
} I

public GridView GV { get; set; }
private void dosomecation() {

// GV you can do something.
}

-------------------------
in the gridview page..

private void StartTask()
{
if (!this.Stopped)
{
Task obj = new Task();
obj.GV = this.gridviewName; // your gridview id
Thread thread = new Thread(new ThreadStart(Execute));
thread.Start();
}
}

Sriram Ramachandran 18-Jan-14 5:07am

thanks karthik

Karthik_Mahalingam 18-Jan-14 5:14am

welcome sriram :)

Rahul VB 18-Jan-14 6:23am

Hello Sir,
Just check my solution below. Please advice if something is wrong.

Thanks,
-Rahul