How to Identify which dynamically creted link button is clicked?

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Hi friends,

I have one problem in my project.Can anybody help me to sort out my problem..It is as below..

I have dynamically created link buttons with the name of the folders which contain my files and assigned unique id to them.
I have also included the event handler for them.

Now on the click of the link button,I want to know which button was clicked and store in a session variable the complete path of those link sp that I can access the text files stored in them on the next page.

So can anybody tell me how to identify those buttons?

The code is given below..THanks in advance..

string stringChapterno = Session["chapterno"].ToString();
string stringAppPath = HttpContext.Current.Request.ApplicationPath;
string stringPhysicalPath = HttpContext.Current.Request.MapPath(stringAppPath);
stringPhysicalPath = stringPhysicalPath + "\\App_Data\\" + stringChapterno;
//List<string> dirs = GetFilesRecursive(stringPhysicalPath);

foreach (string p in Directory.GetDirectories(stringPhysicalPath))
{
i = i + 1;
LinkButton lnkbtn = new LinkButton();
ViewState["btnlink" + i] = p.ToString();
string s = Path.GetFileNameWithoutExtension(p);
lnkbtn.Text = s;
lnkbtn.CssClass = "hyperlink";
lnkbtn.ID = "btnlink" + i;
Panel1.Controls.Add(lnkbtn);
Panel1.Controls.Add(new LiteralControl("<br>"));
Panel1.Controls.Add(new LiteralControl("<br>"));
lnkbtn.Click += new EventHandler(this.lnkbtn_Click);
HiddenField1.Value = p;
base.OnInit(e);
}

}
protected void lnkbtn_Click(object sender, EventArgs e)
{
???
}

Posted 18-Jan-10 20:12pm

Swapnil 2009

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AspDotNetDev · Accepted Answer · 2010-01-18T21:45:00

Solution 2

C#

protected void lnkbtn_Click(object sender, EventArgs e)
{
    string id = ((LinkButton)sender).ID;
}

Posted 18-Jan-10 21:45pm

AspDotNetDev

Sandeep Mewara · Accepted Answer · 2010-01-18T21:12:00

Solution 1

Use

C#

string ctrlname = page.Request.Params.Get("__EVENTTARGET");
if (ctrlname != null && ctrlname != string.Empty)
{
    return this.Page.FindControl(ctrlname);
}

It holds the UniqueID of the control that caused postback.

Posted 18-Jan-10 21:12pm

Sandeep Mewara