Checked items in gridview is not displayed

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In my coding I'm using a gridview with check box and a list box to get the checked items. But the checked items are not displayed in istbox.
I'm using the following code:

C#

protected void btSelect_Click(object sender, EventArgs e)
   {
       StringCollection sc = new StringCollection();
       string id = string.Empty;
       for (int i = 0; i < GridView1.Rows.Count; i++)
       {
           CheckBox cb = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("CheckBox1");
           if (cb != null)
           {
               if (cb.Checked)
               {
                   id = GridView1.Rows[i].Cells[1].Text;
                   sc.Add(id);
               }
           }
       }
       foreach (string item in sc)
       {
           productList.Items.Add(item);
       }
   }

Whether I'm missing something?

Thankyou.

Posted 24-May-12 2:21am

Zukiari

Updated 24-May-12 2:22am

Not Active

v2

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3 solutions

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Not Active · Answer 1 · 2012-05-24T02:24:00

Solution 1

Maybe this will help DataGridDemo[^]

Posted 24-May-12 2:24am

Not Active

Comments

Zukiari 24-May-12 8:30am

While running the code, cb is null so that it fails on the condition-if (cb != null)

[no name] 24-May-12 8:48am

Do you read the link? Did you see the section titled "Checkboxes and TextBoxes"?

Zukiari 26-May-12 0:15am

I''ve read that link, but it is not working for me.
Thank you for your response. The link is useful for me in another case. Thanks.

Sandeep Mewara · Answer 2 · 2012-05-24T02:38:00

Try:

C#

protected void btSelect_Click(object sender, EventArgs e)
{
        List<string> sc = new List<string>();
        string id = string.Empty;
        for (int i = 0; i < GridView1.Rows.Count; i++)
        {
            CheckBox cb = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("CheckBox1");
            if (cb != null)
            {
                if (cb.Checked)
                {
                    id = GridView1.Rows[i].Cells[1].Text;
                    sc.Add(id);
                }
            }
        }

        productList.DataSource = sc.ToArray();
        productList.DataBind();
}

Anuja Pawar Indore · Answer 3 · 2012-05-24T02:47:00

Solution 3

Refer this thread
http://stackoverflow.com/questions/540304/how-to-get-values-of-checkboxes-inside-gridview-that-are-checked-using-asp-net[^]
http://www.dreamincode.net/forums/topic/27943-checkbox-in-gridview/[^]

Posted 24-May-12 2:47am

Anuja Pawar Indore