Question

I have a grid on my page and using check box for checking one or more than one row in grid and i want to delete checked row from grid on the click of delete button which is out side the grid..

In table i have only name field there is no field like ID.

How can i delete record.

Thanks in advance..

Here is my code What i am doing:-

private void GetData()
{

    ArrayList arr;
    if (ViewState["TotalRecords"] != null)
    {
        arr = (ArrayList)ViewState["TotalRecords"];
    }
    else
    {
        arr = new ArrayList();
    }
    for (int i = 0; i < grdlistWord.Rows.Count; i++)
    {

        CheckBox chk = (CheckBox)grdlistWord.Rows[i].Cells[1].FindControl("chkWord");
        if (chk.Checked)
        {
            if (!arr.Contains(grdlistWord.Rows[i].Cells[1]))
            {
                arr.Add(grdlistWord.Rows[i].Cells[1]);
            }
        }
        else
        {
            if (arr.Contains(grdlistWord.Rows[i].Cells[1]))
            {
                arr.Remove(grdlistWord.Rows[i].Cells[1]);
            }
        }

    }
    ViewState["TotalRecords"] = arr;
}

protected void lnkbtnDelete_Click(object sender, EventArgs e)
{

    try
    {
        int count = 0;

        ArrayList arr = (ArrayList)ViewState["TotalRecords"];
        count = arr.Count;
        for (int i = 0; i < grdlistWord.Rows.Count; i++)
        {
            if (arr.Contains(grdlistWord.Rows[i].Cells[1].Text))
            {
                Response.Write(grdlistWord.Rows[i].Cells[1].Text.ToString());
                DeleteRecord(grdlistWord.Rows[i].Cells[1].Text.ToString());
                arr.Remove(grdlistWord.Rows[i].Cells[1].Text);
            }
        }
        ViewState["TotalRecords"] = arr;
        GridBind();

    }
    catch (SqlException ex)
    {
        ex.ToString();
    }

}


private void DeleteRecord(string word)
{

    string query = "delete from searchword where word=@word";

    SqlCommand cmd = new SqlCommand(query, con);
    cmd.Parameters.AddWithValue("@word", word);
    con.Open();
    cmd.ExecuteNonQuery();
    con.Close();
}

gridview html detail:

 <fieldset>
        <legend>List</legend>
        <asp:GridView ID="grdlistWord" runat="server" DataKeyNames="word" AutoGenerateColumns="False" CellPadding="4" ForeColor="#333333" GridLines="None" AllowPaging="True" OnRowDataBound="grdlistWord_RowDataBound" OnRowDeleting="grdlistWord_RowDeleting">
            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:CheckBox ID="chkWord" runat="server" onclick="check_click(this);" />

                    </ItemTemplate>
                    <HeaderTemplate>
                        <asp:CheckBox ID="chkAll" runat="server" onclick="checkAll(this);" />
                        <asp:LinkButton ID="ButtonDelete" runat="server" Text="Delete" OnClick="ButtonDelete_Click"></asp:LinkButton>
                    </HeaderTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="Word" HeaderText="Word" />
                <asp:HyperLinkField HeaderText="Edit" Text="edit" DataNavigateUrlFields="Word" DataNavigateUrlFormatString="SearchWord.aspx?words={0}&amp;mode=Edit" />
                <asp:CommandField ShowDeleteButton="True" HeaderText="Delete" />
            </Columns>
            <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
            <EditRowStyle BackColor="#999999" />
            <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
            <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
            <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
            <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
            <EmptyDataTemplate>Records not exist!</EmptyDataTemplate>
        </asp:GridView>

        <asp:HiddenField ID="hfCount" runat="server" Value = "0" />

    </fieldset>

Answer 1

 protected void lnkbtnDelete_Click(object sender, EventArgs e)
        {

            int counter = 0;
            List<string> words = new List<string>();
            foreach (GridViewRow rowitem in grdlistWord.Rows)
            {
                if (((CheckBox)rowitem.Cells[0].FindControl("chkWord")).Checked == true)//i consider that the check box is in the first column index ---> 0
                {
                    counter++;
                    words.Add(rowitem.Cells[1].Text); //i consider that the word is in the second column index ---> 1
                }
            }
            /////////////////////////////////////////////////////////////
            if(counter == 0) //no checks
            {

             //show some message box to clarify that no row has been selected.

            }
            /////////////////////////////////////////////////////////////
            if (counter == 1) //one check
            {

                DeleteRecord(words[0]);
                //Show some message box to clarify that the operation has been executed successfully.

            }
            /////////////////////////////////////////////////////////////
            if (counter > 1) //more than one check
            {
                for(int i=0; i<words.Count;i++)
                   {
                     DeleteRecord(words[i]);
                   }
                   //Show some message box to clarify that the operation has been executed successfully.
            }

            grdlistWord.DataBind();
        }