Reach Control from Another Page. Asp.Net

Reach control from another page. ASP.Net

You need to get an instance of the form. See my two form project below
Form 1

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        Form2 form2;
        public Form1()
        {
            InitializeComponent();
            form2 = new Form2(this);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            form2.Show();
            string  results = form2.GetData();
        }
    }
}

Form 2

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form2 : Form
    {
        Form1 form1;
        public Form2(Form1 nform1)
        {
            InitializeComponent();

            this.FormClosing +=  new FormClosingEventHandler(Form2_FormClosing);
            form1 = nform1;
            form1.Hide();
        }
        private void Form2_FormClosing(object sender, FormClosingEventArgs e)
        {
            //stops form from closing
            e.Cancel = true;
            this.Hide();
        }
        public string GetData()
        {
            return "The quick brown fox jumped over the lazy dog.";
        }

    }
}

ASP.net(C#): Is it possible to access controls on one webform from another?

I feel slightly stupid for how easy this ended up being, but here it is for anyone having the same issue.

Here's the design for a simple user control I used to test this. Its just a button. xD

<%@ Control  Language="C#" AutoEventWireup="true" CodeBehind="WebUserControl3.ascx.cs" Inherits="AcmeCompany_DATA_CENTER_v2.WebUserControl3" %>
<asp:Button ID="Button1" runat="server" OnClientClick="Button1_Click" Text="Button" OnClick="ButtonCreate_Click" PostBackUrl="~/WebUserControl3.ascx" />

heres the code behind for the user control

 protected void ButtonCreate_Click(object sender, EventArgs e)
    {
        WebPartManager wpm = (WebPartManager)WebPartManager.GetCurrentWebPartManager(this.Page);

        TextBox testBox = new TextBox
        {
            ForeColor = System.Drawing.Color.Blue,
            ID = "testID",
            Width = 500,
            Height = 200
        };          

        GenericWebPart testGWP = wpm.CreateWebPart(testBox);

        wpm.AddWebPart(testGWP, wpm.Zones["WebPartZone4"], 1);
    }

I was unaware of the Zones class inside of webpartmanager, and I came across it just scrolling through looking for something that may work. Tada.....It's always the little things.

P.S. @Maciej S. Thank you, While you didn't give me the answer, our conversations helped my brain think to look for certain things.

access control of another page asp.net

In general, this doesn't make sense.

When your second page is executing, the first page is gone. It simply no longer exists. There is no label for you to assign to.

Even if you could assign to the label, the previous request is over. The HTML (without the change) has already been sent to the user's browser.

How can i get all control in another page of site in code behind

I use HttpWebRequest to solve this problem.

In Default.aspx page when Clicked on button run this code :

byte[] dataArray = Encoding.UTF8.GetBytes("");

//url = "http://localhost:50036/UI/Dashboard.aspx?Action=FindControl"
HttpWebRequest httpRequest = (HttpWebRequest)WebRequest.Create(url);
httpRequest.Method = "POST";
httpRequest.ContentType = "application/x-www-form-urlencoded";

httpRequest.ContentLength = dataArray.Length;
Stream requestStream = httpRequest.GetRequestStream();
requestStream.Write(dataArray, 0, dataArray.Length);
requestStream.Flush();
requestStream.Close();

HttpWebResponse webResponse = (HttpWebResponse)httpRequest.GetResponse();

if (httpRequest.HaveResponse == true)
{
      Stream responseStream = webResponse.GetResponseStream();
      StreamReader responseReader = new System.IO.StreamReader(responseStream, Encoding.UTF8);
      String responseString = responseReader.ReadToEnd();
      /*
          In responseString string i have all control and types seperated by `semicolon`(`;`)
      */
}
else
      Console.Write("no response");

In this code url Variable contain url of Dashboard.aspx

Note:url must contain http:// otherwise doesn't work

In Dashboard.aspx page in Page_Load write this code:

protected void Page_Load(object sender, EventArgs e)
{
    if (Request.QueryString["Action"] != null && Request.QueryString["Action"].ToString() == "FindControl")
    {
         HttpContext.Current.Response.Write(ControlsList(this));
         HttpContext.Current.Response.End();
    }
}

public void ControlsList(Control parent)
    {
        string ans = "";
        foreach (Control c in parent.Controls)
        {
            if (c is TextBox || c is Button || c is DropDownList || c is CheckBox || c is RadioButton || c is CheckBoxList || c is RadioButtonList || c is ImageButton || c is LinkButton)
            {
                if(c.ID != null && c.ID != "")
                ans +=c.ID + "," + ((System.Reflection.MemberInfo)(c.GetType().UnderlyingSystemType)).Name + ";";
            }
            ans += ControlsList(c);
        }
        return ans;
    }

In Page_Load check Action=FindControl then find all control with specified Type with recursive function ControlsList and write it to response to use in Default.aspx

Its completely work for me!

How to get event control from another aspx Page. button click or Page load | ASP.NET

1st Page.

FirstPageName.aspx page.

 <asp:Button ID="Button1" runat="server" Text="Submit" CssClass="btn btn-primary" OnClick="Button1_Click" OnClientClick="return" />

FirstPageName.aspx.cs page.

public void Button1_Click(object sender, EventArgs e){
    //Do some stuff in the button click event handler.
}

Change the button Access Modifiers property to public from the designer page.

public global::System.Web.UI.WebControls.Button Button1;

2nd Page

Here, we can use 2 methods.

• 1st Method

Create an Object in this page to access 1st page.

FirstPageName firstPage = new FirstPageName();
firstPage.Button1_Click(firstPage.Button1, EventArgs.Empty);

• 2nd Method

Create an Object in this page to access 1st page.

FirstPageName firstPage = new FirstPageName();
firstPage.Button1.Click += new EventHandler(firstPage.Button1_Click);

• I'm also attaching another two methods. Try this, This works for me.

  YourButton.RaiseEvent(new RoutedEventArgs(Button.ClickEvent));

  Button.PerformClick();

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