How to delete record particular gridview row checkbox check changed on checkchanged event in c# asp.net?

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Hello,

I am using this code for delete row of data on checkbox checkchanged event using c# asp.net but my event did not fire.

C#

protected void ChkSelect_CheckedChanged(object sender, EventArgs e)
    {
        foreach (GridViewRow row in GvMyCart.Rows)
        {
            // Only look for check boxes in data rows, ignoring header 
            // and footer rows
            if (row.RowType == DataControlRowType.DataRow)
            {
                if (((CheckBox)row.FindControl("ChkSelect")).Checked==false)
                {
                    Label lblprodID = (Label)GvMyCart.FindControl("lblprodID");
                    SqlConnection con = new SqlConnection(connectionString);
                    con.Open();
                    SqlCommand cmd1 = new SqlCommand("procdeleteCard", con);
                    cmd1.CommandType = CommandType.StoredProcedure;
                    cmd1.Parameters.Add("@ProdID", SqlDbType.Int).Value = Convert.ToInt32(lblprodID.Text);
                    cmd1.ExecuteNonQuery();
                    con.Close();
                    BindGrid();
                    // Do delete logic here
                }
            }
        }
    }

my checkbox in a gridview and gridview in update panel.

C#

<div class="frant-page-dumy-text">
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
        <asp:GridView ID="GvMyCart" runat="server" CssClass="dataTable"
                AutoGenerateColumns="False" RowStyle-CssClass="odd_row"
                AlternatingRowStyle-CssClass="even_row"
                onrowdatabound="GvMyCart_RowDataBound" ShowFooter="True">
            <AlternatingRowStyle CssClass="even_row" />
        <Columns>

        <asp:TemplateField HeaderStyle-CssClass="dataTableHeader">
        <ItemTemplate>
            <asp:CheckBox ID="ChkSelect" runat="server" Checked="true"
                oncheckedchanged="ChkSelect_CheckedChanged"/>
        </ItemTemplate>
            <HeaderStyle CssClass="dataTableHeader" />
        </asp:TemplateField>
<asp:TemplateField HeaderText="prodID" HeaderStyle-CssClass="dataTableHeader">
        <ItemTemplate>
            <asp:Label ID="lblprodID" runat="server" Text='<%#Eval("prodID")%>'></asp:Label>
        </ItemTemplate>
            <HeaderStyle CssClass="dataTableHeader" />
        </asp:TemplateField>

please help me how to delete particular uncheck delete row.

Thanks in Advance.

Ankit Agarwal
Website Developer

Posted 27-Dec-13 20:00pm

ankit.agg1984

Updated 27-Dec-13 20:05pm

Tom Marvolo Riddle

v3

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2013-12-27T20:35:00

Solution 1

Set AutoPostBack="True" for the CheckBox.

Posted 27-Dec-13 20:35pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Comments

[no name] 28-Dec-13 2:40am

When i set AutoPostBack="True", So, It's not reacting on check event my check box already checked, i want to unchecked and delete row of data.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 28-Dec-13 3:39am

I think the problem is due to the naming of OnCheckedChanged event. It is case sensitive.
But you have all small letters.
So it should be...

<asp:CheckBox ID="ChkSelect" runat="server" Checked="true"
OnCheckedChanged="ChkSelect_CheckedChanged"/>

JoCodes · Answer 2 · 2013-12-27T21:48:00

Solution 2

Follow the First Solution and also check the

C

if(!ispostback)

{}

for the Gridview databind.

Posted 27-Dec-13 21:48pm

JoCodes

**Vinay** Jade · Answer 3 · 2013-12-28T06:51:00

In code behind =>

protected void ChkSelect_CheckedChanged(object sender, EventArgs e)<br />
    {<br />
        int i=-1;<br />
        foreach (GridViewRow row in GvMyCart.Rows)<br />
        {<br />
           CheckBox ch = (CheckBox)row.FindControl("ChkSelect");<br />
            if (ch.Checked == false)<br />
            {<br />
                i += 1;<br />
                break;<br />
            }<br />
            i++;<br />
        }<br />
                    Label lblprodID = (Label)GvMyCart.Rows[i].FindControl("lblprodID");<br />
                    SqlConnection con = new SqlConnection(connectionString);<br />
                    con.Open();<br />
                    SqlCommand cmd1 = new SqlCommand("procdeleteCard", con);<br />
                    cmd1.CommandType = CommandType.StoredProcedure;<br />
                    cmd1.Parameters.Add("@ProdID", SqlDbType.Int).Value = Convert.ToInt32(lblprodID.Text);<br />
                    cmd1.ExecuteNonQuery();<br />
                    con.Close();<br />
                    BindGrid();        <br />
        }<br />
    }

In source view set checkbox Checked property as
Checked="true"