Passing values from one user control

Posted Date: 16 Aug 2012 Posted By:: Jai

Member Level: Gold Member Rank: 139 Points: 4 Responses: 3

Hi,

I have a main form. i have a split container and i have two user controls in each split container.

User control 1 -> I have a grid view which takes data from db and i have done.

User Control 2 -> I have some text boxes which should be populated based on selecting a row from user control 1

My question is how can i pass the data or access another usercontrol 2 controls from user control 1

Thanks
Jai

Responses

#684559 Author:

Mahesh Durgam Member Level: Gold Member Rank: 137 Date: 17/Aug/2012 Rating: 2 out of 5

Points: 4

Hi,

Try to use the below code snippet, hope it might help you




UserControl 1
---------------
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="UserControl1.ascx.cs" Inherits="UserControl1" %>
First name:

<asp:Label ID="lblFirstName" runat="server" Text="First name"></asp:Label><br />
Last Name:
<asp:Label ID="lblLastName" runat="server" Text="Last name"></asp:Label>

Code-behind:
--------------

public partial class UserControl1 : System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{ }

public string LastName
{
set { lblLastName.Text = value; }
get { return value; }
}

public string FirstName
{
set { lblFirstName.Text = value; }
get { return value; }
}
}


UserControl 2
---------------
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="UserControl2.ascx.cs" Inherits="UserControl2" %>
First name:

<asp:Label ID="lblFirstName" runat="server" Text="First name"></asp:Label><br />
Last Name:
<asp:Label ID="lblLastName" runat="server" Text="Last name"></asp:Label>

Code-behind:
--------------

public partial class UserControl2 : System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{ }

public string LastName
{
set { lblLastName.Text = value; }
get { return value; }
}

public string FirstName
{
set { lblFirstName.Text = value; }
get { return value; }
}
}


In the .aspx page, add the user-controls
---------------------------------------------

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TestUserControls.aspx.cs" Inherits="TestUserControls" %>

<%@ Register src="UserControl1.ascx" tagname="UserControl1" tagprefix="uc1" %>
<%@ Register src="UserControl2.ascx" tagname="UserControl2" tagprefix="uc2" %>

<html>
<head runat="server">
</head>
<body>
<form id="form1" runat="server">
<div>
<uc1:UserControl1 ID="UserControl1" runat="server" />
</div>
<asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Button" />
<uc2:UserControl2 ID="UserControl2" runat="server" />
</form>
</body>
</html>

In code-behind,
-----------------

public partial class TestUserControls : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}
protected void Button1_Click(object sender, EventArgs e)
{
    Response.Write("First Name: " + UserControl1.FirstName);
    Response.Write("<br/>Last Name: " + UserControl2.LastName);

UserControl2.FirstName = UserControl1.FirstName;
UserControl2.LastName = UserControl1.LastName;
}
}

Thanks,
Mahesh

#684566 Author: Jai Member Level: Gold Member Rank: 139 Date: 17/Aug/2012 Rating: Points: 1
i am working on windows application not web

#684583 Author:

Ashis kumar Nayak Member Level: Gold Member Rank: 0 Date: 17/Aug/2012 Rating: 2 out of 5

Points: 4

As you said u want to access the testbox in usercontrol2 in usercontrol1, for that first set the textBox's "Modifier" property to "Public" in the usercontrol2.

Create a property of type "UserControl2" in usercontrol1. Let say 'Uc2"

Set the property value "Uc2= instance of the userControl2 created in the form load.

here is the code Sample


private void Form1_Load(object sender, EventArgs e)
	{
			UserControl1 uc1 = new UserControl1();
			UserControl2 uc2 = new UserControl2();			
			uc1.Uc2 = uc2;
			panel1.Controls.Add(uc1);
			panel2.Controls.Add(uc2);
		}

Code in usercontrol


namespace TestWinApp
{
	public partial class UserControl1 : UserControl
	{
		public UserControl1()
		{
			InitializeComponent();
		}
		

		private UserControl2 uc2;
		public UserControl2 Uc2
		{
		    get { return uc2; }
		    set { uc2 = value; }
		}

		private void UserControl1_Load(object sender, EventArgs e)
		{
				DataTable dt = new DataTable();
			dt.Columns.Add(new DataColumn("Fname"));
			dt.Columns.Add(new DataColumn("Lname"));
			DataRow dr = null;
			for (int i = 0; i <= 4; i++)
			{
				dr = dt.NewRow();
				dr["FName"] = "Mc."+i.ToString();
				dr["Lname"] = "Duck"+i.ToString();
				dt.Rows.Add(dr);
			}
			
			dataGridView1.DataSource = dt;			
		}
				

		private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
		{			
			uc2.textBox1.Text = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString(); ;
		}

	}
}

Post Reply

You must Sign In to post a response.

	Next : Save multiple data in variable and retrive data from varibale in windows application
	Previous : How to get data within a specic dates from excel to dagagrid view
	Return to Discussion Forum
	Post New Message
	Category:

Related Messages

Active Members
Today

Last 7 Days

more...

Awards & Gifts

Email subscription

Talk to Webmaster Tony John