save all gridview updates

Posted on 2011-02-25
Medium Priority
Last Modified: 2012-05-11
have a gridview with checkboxes - allow the user to check/uncheck a row. how do i save all the changes instead of going row by row edits?

asp:GridView ID="grdvwD" runat="server" AutoGenerateColumns="False" 
    CellPadding="4" ForeColor="#333333" 
    GridLines="None" DataKeyNames="ID" AllowSorting="True" 
    ondatabound="grdvwD_DataBound" onsorting="grdvwD_Sorting">
    <AlternatingRowStyle BackColor="White" ForeColor="#284775" />
                <asp:CheckBox ID="chkStatus" runat="server" />
        <asp:BoundField DataField="ID" HeaderText="ID" SortExpression="ID" InsertVisible="False" ReadOnly="True" Visible="False" />
        <asp:TemplateField HeaderText="Active"  SortExpression="Active" >
           <ItemTemplate >
                <asp:Label ID="lblActive" runat="server" Text='<%# Eval("Active") %>'></asp:Label>
        <asp:BoundField DataField="Center Name" HeaderText="Center Name" 
            SortExpression="Center Name" />
    <EditRowStyle BackColor="#999999" />
    <FooterStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
    <HeaderStyle BackColor="#5D7B9D" Font-Bold="True" ForeColor="White" />
    <PagerStyle BackColor="#284775" ForeColor="White" HorizontalAlign="Center" />
    <RowStyle BackColor="#F7F6F3" ForeColor="#333333" />
    <SelectedRowStyle BackColor="#E2DED6" Font-Bold="True" ForeColor="#333333" />
    <SortedAscendingCellStyle BackColor="#E9E7E2" />
    <SortedAscendingHeaderStyle BackColor="#506C8C" />
    <SortedDescendingCellStyle BackColor="#FFFDF8" />
    <SortedDescendingHeaderStyle BackColor="#6F8DAE" />

<asp:Button ID="btnSave" runat="server" Text="Save" onclick="btnSave_Click" />

protected void Page_Load(object sender, EventArgs e)
            if (!Page.IsPostBack)

protected void loadDataGrid()
            SQLQryString = "select from db tbl";
            SQLCmd = new SqlCommand(SQLQryString);

            using (SQLCon = new SqlConnection(SQLConnectionString))
                SQLCmd.Connection = SQLCon;


                SQLDR = SQLCmd.ExecuteReader();

                grdvwD.DataSource = SQLDR;

        protected void btnSave_Click(object sender, EventArgs e)


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Question by:vicomin
  • 2
LVL 13

Accepted Solution

Rahul Agarwal earned 2000 total points
ID: 34981092
you can use the following code:

foreach (GridViewRow currentRow in grdHierarchy.Rows)

{if (((CheckBox)currentRow.FindControl("chkSelect")).Checked == true)


Get the template name and save it in database


Author Comment

ID: 34982046
does this make sense? but I'm not sure how to do this or get the databound value of ID

protected void btnSave_Click(object sender, EventArgs e)
            //string rowId = string.Empty;
            //string activeValue = string.Empty;

            //update each row - use value of ID and value of lblActive
            foreach (GridViewRow currentRow in grdvwD.Rows)
                //how do i get the id when it is a bound field? do i need to convert it to a template field?

                Label lbl = (Label)currentRow.FindControl("lblActive");

                //update the row
                saveDataGrid(rowId, lbl.Text); //method call to update database table

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Author Comment

ID: 34982905
one more quick question - what i've got modifies all of the rows even if the user did not change anything. how do i detect only the changed rows?

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