Question

Here is my gridview

<asp:GridView ID="gvEmployee" runat="server" AutoGenerateColumns="false" GridLines="Both">
            <Columns>
                <asp:TemplateField HeaderText="Name">
                    <ItemTemplate>
                        <asp:TextBox ID="txtName" runat="server" Text='<%#Eval("Name") %>'></asp:TextBox>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="Emailid" HeaderText="EmailId" />
                <asp:TemplateField >
                    <ItemTemplate>
                        <asp:LinkButton ID="lnkgettext" runat="server"  OnClientClick="return callme(<%= txtName.ClientID %>);" Text="Gettextboxvalue" ></asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
  <script type="text/javascript">
        function callme(txt) {
            alert(txt);
        }
    </script>

Onclick of LinkButton i want to get the value of a textbox from the current row of gridview

Please help me with javascript

Answer 1

You will have to use row data bound as follows
This can be done by jQuery also. But for this first of all the purpose should be clear.
i.e. Weather you want to postback or not etc

protected void gvEmployee_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        LinkButton lk = (LinkButton)e.Row.FindControl("lnkgettext");
        TextBox textBox = (TextBox)e.Row.FindControl("txtName");
        lk.Attributes.Add("onclick", "return callme('" + lk.ClientID + "')");
    }
}

and your gridview as follows

<asp:GridView ID="gvEmployee" runat="server" AutoGenerateColumns="false" GridLines="Both"
        OnRowDataBound="gvEmployee_RowDataBound">
        <Columns>
            <asp:TemplateField HeaderText="Name">
                <ItemTemplate>
                    <asp:TextBox ID="txtName" runat="server" Text='<%#Eval("Name") %>'></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:BoundField DataField="Emailid" HeaderText="EmailId" />
            <asp:TemplateField>
                <ItemTemplate>
                    <asp:LinkButton ID="lnkgettext" runat="server" Text="Gettextboxvalue"></asp:LinkButton>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>
    <script type="text/javascript">
        function callme(txt) {
            alert(txt);
        }
    </script>

or even jquery function as follow

     $(document).ready(function () {
        $('#gvEmployee a').click(function () {
            alert($(this).parent("td").parent("tr").find("input:text").val());
        });
    });