How to get the selected value of the dynamically created Radiobuttonlist

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i created a dynamic radiobuttonlist in Masterpage inherited page like this.this is working.

C#

RadioButtonList rbl = new RadioButtonList();
rbl.ID = "rblID";

//Add Items
rbl.Items.Add(new ListItem("One", "1"));
rbl.Items.Add(new ListItem("Two", "2"));
rbl.Items.Add(new ListItem("Three", "3"));

rbl.DataBind();
PlaceHolder1.Controls.Add(rbl);

i need to find the selected value of radiobuttonlist. i tried the below code, but it is not working.

C#

RadioButtonList rb = (RadioButtonList)FindControl("rblID"); 
TextBox1.Text = rb.SelectedValue;

Posted 15-Feb-12 0:43am

Robymon

Updated 24-Apr-12 2:28am

Rahul Rajat Singh

v4

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Rahul Rajat Singh 24-Apr-12 8:30am

Just check whether you are doing the above mentioned stuff only on first time i.e. not on every postback.

2 solutions

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Sudip Saha · Answer 1 · 2012-02-15T00:53:00

Solution 1

RadioButtonList rb = (RadioButtonList)Master.FindControl("rblID"); 
TextBox1.Text = rb.SelectedValue;

Posted 15-Feb-12 0:53am

Sudip Saha

Comments

Robymon 15-Feb-12 6:59am

not working. i am getting the following error.

System.NullReferenceException: Object reference not set to an instance of an object.

AshishChaudha · Answer 2 · 2012-04-24T02:26:00

C++

RadioButtonList rbl = new RadioButtonList();
rbl.ID = "rblID";
rbl.AutopostBack="true";


rbl.Items.Add(new ListItem("One", "1"));
rbl.Items.Add(new ListItem("Two", "2"));
rbl.Items.Add(new ListItem("Three", "3"));
 
rbl.DataBind();
PlaceHolder1.Controls.Add(rbl);

C#

RadioButtonList rb = (RadioButtonList)FindControl("rblID");
TextBox1.Text = rb.SelectedValue;