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event handling is not working in my asp.net web forms web application

The update button Onclick event is not working.
I inserted one more button called button1 for testing if it works, but found that it is not working, even Icacked in other web forms in the app
It is not working at all.
Only page load event-driven is working.
Update:
The problem is not solved with other controls. For example, after the user clicks on an update button, a fucntion will be called that checks the value in the textbox and make some calculation.
After debugging, I found that the program cannot read any values from the textbox.
Note: I am using packages like bootstrap, Ajax as they are already built-in in the asp.net web forms web applications. I have also tried to exclude them from the project as mentioned in some references, however, nothing changed.
Here is my code for Shopping Cart web form:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Celebreno.Models;
using Celebreno.Cart;
//to use IOrderedDictionary
using System.Collections.Specialized;
using System.Collections;
using System.Web.ModelBinding;
namespace Celebreno
{
public partial class ShowCart : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//2- Display the total of cart by calling GetTotal() function(located in Actions_of_Cart class)
//and then store the return value in a new variable, then dispaly it in a label
using (Actions_of_Cart usersShoppingCart = new Actions_of_Cart())
{
//declare a new variable to store the total into it
decimal cartTotal = 0;
cartTotal = usersShoppingCart.GetTotal();
if (cartTotal > 0)
{
//Display Total in a label that has property " Enable ViewState = False"
// ViewSate used
LblTotal.Text = String.Format("{0:c}", cartTotal);
}
else
{
LblTotalText.Text = "";
LblTotal.Text = "";
//HtmlGenericControl
ShoppingCartTitle.InnerText = "The Shopping Cart is Empty";
//not yet needed
UpdateBtn.Visible = false;
// CheckoutImageBtn.Visible = false;
}
Button1.Click += Button1_Click;
}
}
//1- decalre the "select Method" (used in GridView in Source Code) to return the value of..
//..calling GetCartItems(), which is defined in Actions_of_Cart DB class
public List<ItemsInCart> GetShoppingCartItems()
{
Actions_of_Cart actions = new Actions_of_Cart();
return actions.GetCartItems();
}
//
public List<ItemsInCart> UpdateCartItems()
{
using (Actions_of_Cart usersShoppingCart = new Actions_of_Cart())
{
//new var
String cartId = usersShoppingCart.GetCartId();
//The UpdateCartItems method gets the updated values for each item in the shopping cart.
//Then, the UpdateCartItems method calls the UpdateShoppingCartDatabase method
//to either add or remove items from the shopping cart.
//Once the database has been updated to reflect the updates to the shopping cart,
//the GridView control is updated on the shopping cart page by calling the DataBind method
//for the GridView. Also, the total order amount on the shopping cart page is updated
//to reflect the updated list of items.
Actions_of_Cart.ShoppingCartUpdates[] cartUpdates = new Actions_of_Cart.ShoppingCartUpdates[CartList.Rows.Count];
for (int i = 0; i < CartList.Rows.Count; i++)
{
IOrderedDictionary rowValues = new OrderedDictionary();
rowValues = GetValues(CartList.Rows[i]);
//ProductId related to struct in Actions
cartUpdates[i].ProductId = Convert.ToInt32(rowValues["ID"]);
CheckBox cbRemove = new CheckBox();
cbRemove = (CheckBox)CartList.Rows[i].FindControl("RemoveItem");
cartUpdates[i].RemoveItem = cbRemove.Checked;
TextBox quantityTextBox = new TextBox();
quantityTextBox = (TextBox)CartList.Rows[i].FindControl("PurchaseQuantity");
cartUpdates[i].PurchaseQuantity = Convert.ToInt16(quantityTextBox.Text.ToString());
}
usersShoppingCart.UpdateShoppingCartDatabase(cartId, cartUpdates);
CartList.DataBind();
//dispaly updated total value
LblTotal.Text = String.Format("{0:c}", usersShoppingCart.GetTotal());
return usersShoppingCart.GetCartItems();
}
}
public static IOrderedDictionary GetValues(GridViewRow row)
{
try
{
IOrderedDictionary values = new OrderedDictionary();
foreach (DataControlFieldCell cell in row.Cells)
{
if (cell.Visible)
{
// Extract values from the cell.
cell.ContainingField.ExtractValuesFromCell(values, cell, row.RowState, true);
}
}
return values;
}
catch (Exception exp)
{
throw new Exception("ERROR1" + exp.Message.ToString(), exp);
}
}
protected void UpdateBtn_Click(object sender, EventArgs e)
{
UpdateCartItems();
}
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Text = "IT is working ";
}
}
}
Source Code:
<%# Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="ShowCart.aspx.cs" Inherits="Celebreno.ShowCart" %>
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server">
<div id="ShoppingCartTitle" runat="server" class="ContentHead"><h1>Shopping Cart</h1></div>
<%--Start of the GridView to display the items in the cart--%>
<asp:GridView ID="CartList" runat="server" AutoGenerateColumns="False" ShowFooter="True" GridLines="Vertical" CellPadding="4"
ItemType="Celebreno.Models.ItemsInCart" SelectMethod="GetShoppingCartItems"
CssClass="table table-striped table-bordered" >
<Columns>
<%--problem solved : change "ID" to "ServicePack.ID"--%>
<asp:BoundField DataField="ServicePack.ID" HeaderText="Service Package ID" SortExpression="ID" />
<asp:BoundField DataField="ServicePack.Provider" HeaderText="Provider" />
<asp:BoundField DataField="ServicePack.UnitPrice" HeaderText="Price (each)" DataFormatString="{0:c}"/>
<asp:TemplateField HeaderText="Quantity">
<ItemTemplate>
<asp:TextBox ID="PurchaseQuantity" Width="40" runat="server" Text="<%#: Item.Quantity %>"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Item Total">
<ItemTemplate>
<%#: String.Format("{0:c}", ((Convert.ToDouble(Item.Quantity)) * Convert.ToDouble(Item.ServicePack.UnitPrice)))%>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Remove Item">
<ItemTemplate>
<%--checkbox for removing the item--%>
<asp:CheckBox id="Remove" runat="server"></asp:CheckBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<%--End of the GridView--%>
<div>
<p></p>
<strong>
<%--2 (display the total of the cart--%>
<asp:Label ID="LblTotalText" runat="server" Text="Order Total: "></asp:Label>
<asp:Label ID="LblTotal" runat="server" EnableViewState="false"></asp:Label>
</strong>
</div>
<br />
<table>
<tr>
<td>
<%--3 ( add update button) --%>
</td>
<td>
<asp:Button ID="UpdateBtn" runat="server" Text="Button" OnClick="UpdateBtn_Click" />
<asp:Button ID="Button1" runat="server" Text="Test" OnClick="Button1_Click" />
<asp:Label ID="Label1" runat="server" Text="Test"></asp:Label>
</td>
</tr>
</table>
</asp:Content>

solved : by adding two attributes as shown below
<asp:Button ID="UpdateBtn" runat="server" OnClick="UpdateBtn_Click" Text="Button" CausesValidation="False" UseSubmitBehavior="false" />

Textboxes Causing Problems in ASP.NET C# SQL

I am using a nested Gridview(I have 5 Nested Gridviews).
I have applied a Regular Field validator for these Gridviews.
But once I click the button, commas are generated in the textbox. Due to that whenever I click the button, all the validation get fired.
I have researched lots of articles but have not found one related to this.
Here is the image for the Gridview with the commas generated in the textbox:
HTML Code Part
<%-- First Gridview--%>
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false"
CssClass="gvstyling gridview_width_60" ShowHeaderWhenEmpty="true" EmptyDataText="Record(s) Not Found!"
DataKeyNames="locality" ShowHeader="false" OnRowDataBound="gvLocality_RowDataBound">
<Columns>
<asp:TemplateField ItemStyle-Width="15px">
<ItemTemplate>
<img alt="" style="cursor: pointer" src="../images/plus.png" />
<asp:Panel ID="pnlCompanyName" runat="server" Style="display: none">
<%-- Second Gridview --%>
<asp:GridView ID="gvCompanyName" ShowHeader="false" ShowHeaderWhenEmpty="false" CssClass="gvstyling gridview_width_100"
OnRowDataBound="gvCompanyName_RowDataBound" runat="server"
AutoGenerateColumns="false" EmptyDataText="No Record(s) Found!">
<Columns>
<asp:TemplateField ItemStyle-Width="15px">
<ItemTemplate>
<asp:HiddenField ID="hfRetailer_Id" Value='<%# Eval("retailer_id") %>' runat="server"></asp:HiddenField>
<asp:HiddenField ID="hfLocality" Value='<%# Eval("locality") %>' runat="server"></asp:HiddenField>
<asp:Label ID="lbl" Visible="false" Text='<%# Eval("retailer_id") %>' runat="server"></asp:Label>
<img alt="" style="cursor: pointer" src="../images/plus.png" />
<asp:Panel ID="pnlSellOrderNo" runat="server" Style="display: none">
<%-- Third Gridview --%>
<asp:GridView ID="gvSellOrderNo" ShowHeader="false" ShowHeaderWhenEmpty="false"
CssClass="gvstyling gridview_width_100" runat="server" OnRowDataBound="gvSellOrderNo_RowDataBound"
AutoGenerateColumns="false" EmptyDataText="No Record(s) Found!">
<Columns>
<asp:TemplateField ItemStyle-Width="15px">
<ItemTemplate>
<asp:HiddenField ID="hf_SellOrderNo" Value='<%# Eval("sell_order_no") %>' runat="server"></asp:HiddenField>
<asp:Label ID="lblSellOrderNo" Visible="false" Text='<%# Eval("sell_order_no") %>' runat="server"></asp:Label>
<img alt="" style="cursor: pointer" src="../images/plus.png" />
<asp:Panel ID="pnlProductDetails" runat="server" Style="display: none">
<%-- fourth Gridview --%>
<asp:GridView ID="gvProductDetails" ShowHeader="false" ShowHeaderWhenEmpty="false"
CssClass="gvstyling gridview_width_100" runat="server" OnRowDataBound="gvProductDetails_RowDataBound"
AutoGenerateColumns="false" EmptyDataText="No Record(s) Found!">
<Columns>
<asp:TemplateField ItemStyle-Width="15px">
<ItemTemplate>
<asp:HiddenField ID="HiddenField1" Value='<%# Eval("sell_order_no") %>' runat="server"></asp:HiddenField>
<asp:HiddenField ID="hfProductId" Value='<%# Eval("product_id") %>' runat="server"></asp:HiddenField>
<asp:Label ID="lblProductId" Visible="false" Text='<%# Eval("product_id") %>' runat="server"></asp:Label>
<img alt="" style="cursor: pointer" src="../images/plus.png" />
<asp:Panel ID="pnlWarehouseDetails" runat="server" Style="display: none">
<%-- fifth Gridview--%>
<asp:GridView ID="gvWarehouseDetails" ShowHeader="false" ShowHeaderWhenEmpty="false"
CssClass="gvstyling gridview_width_100" runat="server"
AutoGenerateColumns="false">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="lblWarehouseId" Text='<%# Eval("c_warehouse_id") %>' Visible="false" runat="server"></asp:Label>
<%# Eval("warehouse_name") %> (<%# Eval("qty") %>)
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="txtQty" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<%-- fifth Gridview --%>
</asp:Panel>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<%# Eval("product_name") %> (<%# Eval("qty") %>)
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<%-- fourth Gridview --%>
</asp:Panel>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<ItemTemplate>
<%# Eval("sell_order_no") %>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<%-- Third Gridview --%>
</asp:Panel>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Business Name">
<ItemTemplate>
<%# Eval("business_name") %>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<%-- Second Gridview--%>
</asp:Panel>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField ItemStyle-CssClass="gv_item_bg">
<ItemTemplate>
<asp:Label ID="lblLocality" runat="server" Text=' <%# Eval("locality") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
<%-- First Gridview --%>
Code Behind File
//Filling Shipping Company Name
private void FillShippingCompanyName()
{
try
{
ArrayList arr = new ArrayList();
cm.ds.Clear();
cm.sp_dataset_execute("spdisplay_Shipping_Comany_Name", arr);
ddlCompanyName.DataSource = cm.ds;
ddlCompanyName.DataValueField = "shipping_code";
ddlCompanyName.DataTextField = "shipping_name";
ddlCompanyName.DataBind();
ddlCompanyName.Items.Insert(0, new ListItem("---- Select Shipping Company ----", "0"));
}
catch (Exception ex)
{
ErrHandler.WriteError(ex.Message.ToString(), "Shipping-Order-FillShippingCompanyName()");
}
finally
{
cm.con.Close();
}
}
private void FillLocality()
{
try
{
cm.ds.Clear();
ArrayList arr = new ArrayList();
cm.sp_dataset_execute("spDisplay_Locality", arr);
gvLocality.DataSource = cm.ds;
gvLocality.DataBind();
}
catch (Exception ex)
{
ErrHandler.WriteError(ex.Message.ToString(), "Shipping-Order-FillLocality()");
cm.con.Close();
}
finally
{
cm.con.Close();
}
}
//Locality Gridview Row Databound (Level 1 Grdview)
common cm1 = new common();
protected void gvLocality_RowDataBound(object sender, GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string Locality = gvLocality.DataKeys[e.Row.RowIndex].Value.ToString();
GridView gvCompanyName = e.Row.FindControl("gvCompanyName") as GridView;
cm1.ds.Clear();
//Binding Company Gridview
ArrayList arr1 = new ArrayList();
arr1.Add("#locality|" + Locality + "");
cm1.sp_dataset_execute("spDisplayCompanyName", arr1);
gvCompanyName.DataSource = cm1.ds;
gvCompanyName.DataBind();
}
}
catch (Exception ex)
{
ErrHandler.WriteError(ex.Message.ToString(), "Recent_activity-gvRecentActivityOuter_RowDataBound()");
cm1.con.Close();
}
finally
{
cm1.con.Close();
}
}
//Comapny Name Gridview Row Databound (Level 2 Grdview)
common cm2 = new common();
protected void gvCompanyName_RowDataBound(object sender, GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string RetailerId = ((HiddenField)e.Row.FindControl("hfRetailer_Id")).Value;
GridView gvSellOrderNo = e.Row.FindControl("gvSellOrderNo") as GridView;
string Locality = ((HiddenField)e.Row.FindControl("hfLocality")).Value;
cm2.ds.Clear();
//Binding Company Gridview
ArrayList arr = new ArrayList();
arr.Add("#retailer_id|" + RetailerId + "");
arr.Add("#locality|" + Locality + "");
cm2.sp_dataset_execute("spDisplay_SellOrderNo", arr);
gvSellOrderNo.DataSource = cm2.ds;
gvSellOrderNo.DataBind();
}
}
catch (Exception ex)
{
ErrHandler.WriteError(ex.Message.ToString(), "Shipping-Order-Page_Load()");
cm2.con.Close();
}
finally
{
cm2.con.Close();
}
}
//Sell Order Gridview Row Databound (Level 3 Grdview)
common cm3 = new common();
protected void gvSellOrderNo_RowDataBound(object sender, GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string SellOrderNo = ((HiddenField)e.Row.FindControl("hf_SellOrderNo")).Value;
GridView gvProductDetails = e.Row.FindControl("gvProductDetails") as GridView;
FillProductDetails(gvProductDetails, SellOrderNo);
}
}
catch (Exception ex)
{
ErrHandler.WriteError(ex.Message.ToString(), "Shipping-Order-gvSellOrderNo_RowDataBound()");
cm3.con.Close();
}
finally
{
cm3.con.Close();
}
}
private void FillProductDetails(GridView gvProductDetails, string SellOrderNo)
{
cm3.ds.Clear();
//Product Details Gridview
ArrayList arr = new ArrayList();
arr.Add("#sell_order_no|" + SellOrderNo + "");
cm3.sp_dataset_execute("spDisplay_ProductDetails", arr);
gvProductDetails.DataSource = cm3.ds;
gvProductDetails.DataBind();
}
//Product Details Gridview Row Databound (Level 4 Grdview)
common cm4 = new common();
protected void gvProductDetails_RowDataBound(object sender, GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string ProductID = ((HiddenField)e.Row.FindControl("hfProductId")).Value;
string SellOrderNo = ((HiddenField)e.Row.FindControl("HiddenField1")).Value;
GridView gvWarehouseDetails = e.Row.FindControl("gvWarehouseDetails") as GridView;
cm4.ds.Clear();
//Product Details Gridview
ArrayList arr = new ArrayList();
arr.Add("#product_id|" + ProductID + "");
arr.Add("#sell_order_no|" + SellOrderNo + "");
cm4.sp_dataset_execute("spDisplay_WarehouseDetails", arr);
gvWarehouseDetails.DataSource = cm4.ds;
gvWarehouseDetails.DataBind();
}
}
catch (Exception ex)
{
ErrHandler.WriteError(ex.Message.ToString(), "Shipping-Order-gvProductDetails_RowDataBound()");
cm4.con.Close();
}
finally
{
cm4.con.Close();
}
}
//Submit Button
protected void btnSubmit_Click1(object sender, EventArgs e)
{
try
{
cm.ds.Clear();
//--Insert Query for Rs_Shipping_Order_Details
string ShippingCode = "SHO" + DateTime.Now.ToString("yyyyMMddHHmmss");
string ShippingGroup = "SG" + DateTime.Now.ToString("yyyyMMddHHmmss");
ArrayList arr = new ArrayList();
arr.Add("#shipping_code|" + ShippingCode + "");
arr.Add("#shipping_Company_code|" + ddlCompanyName.SelectedValue + "");
arr.Add("#is_shipping_delivered|0");
cm.sp_execute("spInsert_Shipping_Order_Detail", arr);
//Locality for loop
for (int i = 0; i < gvLocality.Rows.Count; i++)
{
GridView gvCompanyName = gvLocality.Rows[i].FindControl("gvCompanyName") as GridView;
//Company for loop
for (int j = 0; j < gvCompanyName.Rows.Count; j++)
{
GridView gvSellOrderNo = gvCompanyName.Rows[j].FindControl("gvSellOrderNo") as GridView;
string RetailerId = ((Label)gvCompanyName.Rows[j].FindControl("lbl")).Text;
//Sell Order for loop
for (int k = 0; k < gvSellOrderNo.Rows.Count; k++)
{
//Product Details Gridview
GridView gvProductDetails = gvSellOrderNo.Rows[k].FindControl("gvProductDetails") as GridView;
string SO = ((Label)gvSellOrderNo.Rows[k].FindControl("lblSellOrderNo")).Text;
int retailer_Id = Convert.ToInt32(RetailerId);
//Product Details for loop
for (int l = 0; l < gvProductDetails.Rows.Count; l++)
{
//Warehouse Details Gridview
GridView gvWarehouseDetails = gvProductDetails.Rows[l].FindControl("gvWarehouseDetails") as GridView;
string ProductId = ((Label)gvProductDetails.Rows[l].FindControl("lblProductId")).Text;
//Warehouse Details for loop
for (int m = 0; m < gvWarehouseDetails.Rows.Count; m++)
{
TextBox txtQty = gvWarehouseDetails.Rows[m].FindControl("txtQty") as TextBox;
string LastValue = txtQty.Text.Split(',').Last();
if (String.IsNullOrEmpty(LastValue) == false)
{
string Warehouse_Id = ((Label)gvWarehouseDetails.Rows[m].FindControl("lblWarehouseId")).Text;
int warehouse_id = Convert.ToInt32(Warehouse_Id);
string Qty = LastValue;
//Insert Query for Rs_Shipping_Detail_Mapping
ArrayList arr1 = new ArrayList();
arr1.Add("#shipping_order_code|" + ShippingCode + "");
arr1.Add("#retailer_id|" + retailer_Id + "");
arr1.Add("#sell_order_no|" + SO + "");
arr1.Add("#product_id|" + ProductId + "");
arr1.Add("#c_warehouse_id|" + warehouse_id + "");
arr1.Add("#shipping_group|" + ShippingGroup + "");
arr1.Add("#qty|" + Qty + "");
common cm1 = new common();
cm1.sp_execute("spInsert_Shipping_Detail_Mapping", arr1);
////Generating Pdf for Each Sell Order
//if (m == gvWarehouseDetails.Rows.Count - 1)
//{
// Generate_SellOrderWise_PDf(SO, ShippingCode, ShippingGroup);
//}
}
}
}
}
}
}
Response.Redirect("../final-shipping-order/?SG=" + ShippingGroup, false);
}
catch (Exception ex)
{
ErrHandler.WriteError(ex.Message.ToString(), "Shipping-Order-btnSubmit_Click1()");
cm4.con.Close();
}
finally
{
cm4.con.Close();
}
}
Question :
1. How do I remove the commas from the textboxes?
2. Reason for these commas? (Why are the commas being generated on the button click?)
3. Limit for the Nested Gridview ?
Any help will be appreciated.

When you have duplicate form field names, the values are concatenated together with commas.
So, for example, if you have the following..
<input type="text" name="name" value="">
<input type="text" name="name" value="">
.. your resulting value on Request.Form postback looks like this:
name=,,
That's what's happening.
Here are a few possible solutions to your problem, though I have not tested any of them :)
1) UpdatePanel
From reading, it seems that if you create an UpdatePanel for the offending grid control (<asp:TextBox ID="txtQty" runat="server"></asp:TextBox>) , it removes this problem. Again, I have not tested this
2) Changing DataBind() behavior during Page_Load()
So...
page_load()
{
if(!isPostBack())
{
// DataBind normally
myGridview.DataBind();
}
else
{
//Some intelligent way to remove commas before binding
}
}
... But that doesn't change the fact that the ,,,values are being posted in the first place. And so, if your primarily concerned with the end aesthetic and not behavior, you can just use JS to strip out the commas (as previously suggested hinted at.)
3) JS - Get Rid of the Commas:
(as suggested here)
<script type="text/javascript">
$("[src*=plus]").live("click", function () {
$(this).closest("tr").after("<tr><td></td><td colspan = '999'>" + $(this).next().html() + "</td></tr>")
$(this).attr("src", "images/minus.png");
$("input", $(this).closest("tr").next()).each(function () {
this.value = this.value.substring(',', '');
});
});
$("[src*=minus]").live("click", function () {
$(this).attr("src", "images/plus.png");
$(this).closest("tr").next().remove();
});
</script>
Hope this helps :)
[Edit] - Validation
I would fire off validation using the .keydown() event. In your case, it might look something like this:
// Bind to each input with id='txtQty', in each row, in the "gridview" with id='gvWarehouseDetails'
$("#gvWarehouseDetails tr input[id*='txtQty']").each(function () {
$(this).keydown(function (event) { // <-- specifies the specific input
// Validation logic goes here...
});
});

The Ajax Control Toolkit is a viable solution, however support for it has become non-existent. I'm assuming there is a level of dynamic control on that field. In essence, the grid will display it at certain instances?
Either way, you could add a specific class to the field:
<asp:Textbox id="txtContent" runat="server" CssClass="Validator">
Essentially when the grid adds all of these fields to your page, they'll all have the Validator class. So you can write JavaScript to actually strip the character out of the field, example:
$('.Validator').on('blur', function() {
$(this).replace(',', '');
});
As soon as the focus changes, that field will remove the , from the field as soon as the mouse leaves the , will be removed from the field.
That is one approach, countless other options do exist as well to accomplish this. This solution is pretty easy, agile, and light so it should be adequate.
Update:
The solution I chose shouldn't require a loop over those fields. Simply because blur triggers whenever a change or focus is lost on that field. Since you mentioned the , appears when the user clicks in the field. Otherwise you could do validation on all the fields. All you simply would need to do:
$('.Validator').each(function() {
// Will iterate through each field.
});
So you could essentially use JavaScript yourself to validate those fields, or use a simple library such as Valid8 which will do all client-side validation. No postback, all done client side before sent to the server to process.
Avoid:
Update Panel - These are quite a pain and incredibly inefficient. The way they work basically is by taking your entire page and storing it memory then does an Ajax request and refreshes your page and pulls all the contents out of memory to place on the page. Additionally it makes working with the Asp.Net Page Life Cycle incredibly difficult.

Hardik, how is txtQty.Text bound at first?
Does it come as an empty text box?
You using the code string LastValue = txtQty.Text.Split(',').Last(); to try go get rid of this comma values inserted or the values bound come with commas? I mean, you using the same UI culture from values in the database and the app or do you have to format it before displaying it?

I Don't know what is happening in your code. But If you want to get rid of Comma (',') then I should suggest one thing to you.
Add a reference of AjaxControlToolKit and register it in your aspx page as shown below:
<%# Register TagPrefix="ajaxToolkit" Namespace="AjaxControlToolkit" Assembly="AjaxControlToolkit, Version=[VersionNumber], Culture=neutral, PublicKeyToken=[TokenNumber]" %>
Or You can refer How to install AJAX Control toolkit
Once you have installed AJAX Control Toolkit, Go to your page and in your grid TemplateField, below TextBox txtQty, add FilteredTextBoxExtender as shown below:
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="txtQty" runat="server"></asp:TextBox>
<ajaxToolkit:FilteredTextBoxExtender runat="server" InvalidChars="," FilterMode="InvalidChars" TargetControlID="txtQty" />
</ItemTemplate>
</asp:TemplateField>
By Adding FilterTextBoxExtender, It will not allow characters to be inserted which are mentioned as InvalidChars to the textbox 'txtQty'.

Get selected product from a datalist in visual studio and SQL

Im trying to learn asp and C# and trying to make a webshop.
I have a working dataset and datalist
<asp:DataList ID="DataList1" runat="server" DataKeyField="ID" DataSourceID="ObjectDataSource1" RepeatDirection="Horizontal" CellSpacing="10">
<ItemTemplate>
<asp:Image ImageUrl='<%# Eval("PicURL") %>' runat="server" ID="PicURLImage" Width="150px" /><br />
<asp:LinkButton ID="AddProduct" Text='<%# Eval("ProductName") %>' runat="server" OnClick="AddProduct_Click"></asp:LinkButton><br />
</ItemTemplate>
</asp:DataList>
I want to press this linkbutton and then It eventually should add this product to a shoppingcart. But right now I just need help to get the selected product row from the datalist that is using a datasource that is connected to the database.
When I click the link I want to execute this code:
Data.DataSet1.ProductDataTable pTable = new Data.DataSet1TableAdapters.ProductTableAdapter().GetDataByCategory();
protected void AddProduct_Click(object sender, EventArgs e)
{
// Add product to the shopping cart
//Class //method
ShoppingCart.Instance.AddItem(THIS IS HE QUESTION I NEED HELP WITH!);
// Redirect the user to view their shopping cart
Response.Redirect("ViewCart.aspx");
}
public void AddItem(int productId)
{
// Create a new item to add to the cart
CartItem newItem = new CartItem(productId);
// If this item already exists in our list of items, increase the quantity
// Otherwise, add the new item to the list
if (Items.Contains(newItem))
{
foreach (CartItem item in Items)
{
if (item.Equals(newItem))
{
item.Quantity++;
return;
}
}
}
else
{
newItem.Quantity = 1;
Items.Add(newItem);
}
}
Do you guys need more information? Do you have any tips or suggestions? Im stuck >__<

Here is how I would do this.
add CommandName attribute to your button (you will not longer need the OnClick event handler for the button) and add event handler for ItemCommand on DataList:
<asp:DataList ID="DataList1" runat="server" DataKeyField="ID" DataSourceID="ObjectDataSource1" RepeatDirection="Horizontal" CellSpacing="10" OnItemCommand="Item_Command">
<ItemTemplate>
<asp:Image ImageUrl='<%# Eval("PicURL") %>' runat="server" ID="PicURLImage" Width="150px" /><br />
<asp:LinkButton CommandName="AddProduct" ID="AddProduct" Text='<%# Eval("ProductName") %>' runat="server" OnClick="AddProduct_Click"></asp:LinkButton><br />
</ItemTemplate>
</asp:DataList>
Change your c# to define Item_Command
void Item_Command(Object sender, DataListCommandEventArgs e)
{
if (e.CommandName == "AddProduct")
{
// e.Item.ItemIndex is the selected index
// DataList1.DataKeys[e.Item.ItemIndex] will return the product id
}
}
Also you can refer to MSDN for further details.

protected void Btn_Command(object sender, CommandEventArgs e)
{
DataListItem dli = (DataListItem)(sender as Control).Parent.Parent;
int indx = dli.ItemIndex;
}

asp.net and c# problems saving new data from new row added to a gridview

I am having a problem with gridviews. Basically I am writing an aircraft information and tracking system and in the process getting to know the wonders of gridviews, but I have trouble with adding a new row to the gridview. I am able to create a new row to input the data when a button is pressed, but when I click on update, I am having some sort of postback problem that is causing that data to be forgotten and can't find a way around it. The datasource is a list of cargodoor objects that contain doubles and strings holding measurements, names etc. Here is my code.
<asp:UpdatePanel ChildrenAsTriggers="true" ID="UpdatePanel2" runat="server">
<ContentTemplate>
<div id="divAddCargoDoor" style="width:100%" runat="server" class="AlignRight">
<asp:LinkButton ID="lbAddNewCargoDoor" runat="server"
Text="<%$ Resources:ls, AddCargoDoor %>"
OnClick="lbAddNewCargoDoor_Click"></asp:LinkButton><br /><br />
</div>
<div id="divCargoDoorNoDoors" runat="server">
<asp:Label ID="lCargoDoorNoDoors" runat="server"
Text="<%$ Resources:ls, NoCargoDoors %>"></asp:Label>
</div>
<asp:GridView ID="gvCargoDoors" runat="server" AutoGenerateColumns="False"
DataKeyNames="Id" Width="100%"
OnRowEditing="gvCargoDoors_RowEditing"
OnRowUpdating="gvCargoDoors_RowUpdating"
OnRowDeleting="gvCargoDoors_RowDeleting"
OnRowCancelingEdit="gvCargoDoors_RowCancellingEdit">
<Columns>
<asp:CommandField AccessibleHeaderText="Edit" ShowEditButton="True" />
<asp:TemplateField AccessibleHeaderText="Name"
HeaderText="<%$ Resources:ls, Description %>">
<ItemTemplate>
<asp:Label ID="lName" runat="server" Text='<%# Bind("Name") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="Name" runat="server" Text='<%# Bind("Name") %>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Width"
HeaderText="<%$ Resources:ls, Width %>">
<ItemTemplate>
<asp:Label ID="lWidth" runat="server" Text='<%# Bind("Width") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="CDWidth" runat="server" Text='<%# Bind("Width") %>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:TemplateField AccessibleHeaderText="Height"
HeaderText="<%$ Resources:ls, Height %>">
<ItemTemplate>
<asp:Label ID="lHeight" runat="server" Text='<%# Bind("Height") %>' />
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="CDHeight" runat="server" Text='<%# Bind("Height") %>' />
</EditItemTemplate>
</asp:TemplateField>
<asp:CommandField AccessibleHeaderText="Delete" ShowDeleteButton="True"
DeleteText="X" />
</Columns>
</asp:GridView>
<br />
</ContentTemplate>
</asp:UpdatePanel>
Now for the C# code
First we have this piece that gets the information from the database that is used to build the datasource. It calls a simple sql database call to the SQL Server 2008 database and returns the data in an aircraft object, that contains a list of cargodoor objects.
private void BuildDataSource()
{
this.ac = Charter.Aircraft.Retrieve(Convert.ToInt32(this.hfAircraftID.Value));
}
Now here is the code for the actual cargo door controls
private void BindCargoDoors()
{
if (ac.CargoDoors.Count == 0)
{
//display a label telling user there are no cargo doors
divCargoDoorNoDoors.Visible = true;
}
else
{
//bind the cargodoor object list to the gridview
divCargoDoorNoDoors.Visible = false;
this.gvCargoDoors.DataSource = this.ac.CargoDoors;
this.gvCargoDoors.DataBind();
}
}
protected void gvCargoDoors_RowEditing(object sender, GridViewEditEventArgs e)
{
//get the index of the row and enter row editing mode
this.gvCargoDoors.EditIndex = e.NewEditIndex;
BuildDataSource();
BindCargoDoors();
}
protected void gvCargoDoors_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
//get the row being edited
GridViewRow row = this.gvCargoDoors.Rows[e.RowIndex];
//create a new cargo door to store the info in
CargoDoor cd = new CargoDoor();
//Retrieve the id of the cargodoor
cd.Id = Convert.ToInt32(gvCargoDoors.DataKeys[e.RowIndex].Values["Id"]);
if (cd.Id == 0) //will apply when new cargodoor is added
{
//fill in the cargodoor object from data in the row
cd.DateAdded = DateTime.Now;
cd.DateModified = DateTime.Now;
cd.Name = ((TextBox)row.FindControl("Name")).Text;
cd.Width = Convert.ToDouble(((TextBox)row.FindControl("Width")).Text);
cd.Height = Convert.ToDouble(((TextBox)row.FindControl("Height")).Text);
cd.Owner = this.ac.Owner;
cd.AircraftId = this.ac.Id;
//insert the new cargodoor into the database
Charter.Aircraft.InsertCargoDoor(cd);
}
else
{
//Retrieve old cargodoor info and fill in object info into cd
CargoDoor cdOrig = Charter.Aircraft.RetrieveCargoDoorByID(cd.Id);
//fill in the cargodoor object with retrieved info
cd.AircraftId = cdOrig.AircraftId;
cd.DateAdded = cdOrig.DateAdded;
cd.Notes = cdOrig.Notes;
cd.Owner = cdOrig.Owner;
//fill in updated information
cd.Name = ((TextBox)row.FindControl("Name")).Text;
cd.Width = Convert.ToInt32(((TextBox)row.FindControl("Width")).Text);
cd.Height = Convert.ToInt32(((TextBox)row.FindControl("Height")).Text);
cd.DateModified = DateTime.Now;
//save the new cargodoor info
Charter.Aircraft.UpdateCargoDoor(cd);
}
//rebuild data source to get new cargo door
BuildDataSource();
//Reset the edit index.
this.gvCargoDoors.EditIndex = -1;
//Bind data to the GridView control.
BindCargoDoors();
}
protected void gvCargoDoors_RowCancellingEdit(object sender,
GridViewCancelEditEventArgs e)
{
this.gvCargoDoors.EditIndex = -1;
BuildDataSource();
BindCargoDoors();
}
protected void gvCargoDoors_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
BuildDataSource();
int id = Convert.ToInt32(gvCargoDoors.DataKeys[e.RowIndex].Values["Id"]);
Charter.Aircraft.DeleteCargoDoor(id);
BuildDataSource();
BindCargoDoors();
}
protected void lbAddNewCargoDoor_Click(object sender, EventArgs e)
{
//trigger the edit mode with an edit row index of 0
this.gvCargoDoors.SetEditRow(0);
//insert a new cargodoor into the source object
this.ac.CargoDoors.Insert(0, new CargoDoor());
//bind the data
this.gvCargoDoors.DataSource = this.ac.CargoDoors;
BindCargoDoors();
}
My big problem is to do with the lbAddNewCargoDoor and the editing of a row. When the update link is pressed it has forgotten that a new row was added and so just edits the row that already exists, rather than inserting a new cargodoor object into the database. I am just not sure on the order of operations to prevent this from screwing up.
Any help would be appreciated. Thanks.

try changing (see the change in order of statements)
protected void lbAddNewCargoDoor_Click(object sender, EventArgs e)
{
//trigger the edit mode with an edit row index of 0
this.gvCargoDoors.SetEditRow(0);
//insert a new cargodoor into the source object
this.ac.CargoDoors.Insert(0, new CargoDoor());
//bind the data
this.gvCargoDoors.DataSource = this.ac.CargoDoors;
BindCargoDoors();
}
to
protected void lbAddNewCargoDoor_Click(object sender, EventArgs e)
{
//insert a new cargodoor into the source object
this.ac.CargoDoors.Insert(0, new CargoDoor());
//bind the data
this.gvCargoDoors.DataSource = this.ac.CargoDoors;
//trigger the edit mode with an edit row index of 0
this.gvCargoDoors.SetEditRow(0);
BindCargoDoors();
}
Please note that I cannot add comments (due to less reputation) and I am aware that this should be a comment.

Getting index of a gridview when hyperlinkfield is clicked

I have a web app(ASP.NET 2.0 using C#) that I am working on. In it, I have a gridview with a hyperlinkfield on a page(My_Page.aspx). When the Hyperlinkfield is clicked, it shows details on the same page.
<asp:HyperLinkField DataNavigateUrlFields="ID"
DataNavigateUrlFormatString="My_Page.aspx?id={0}"
DataTextField="NAME"
HeaderText="Item1"
SortExpression="NAME" />
I want to know how to find the Index of the row in which the Hyperlink is clicked, because I want to change its style, so that the user knows which row was clicked.
OR
How would I change the style of it when the user clicks hyperlink in the gridview.
Thank you.

In your example, the "index" or rather "id" of the hyperlink that was clicked will be in Request.QueryString["id"]
You could compare the ID from the querystring with the ID of the row you are binding to in the RowDataBound event.
Alternatively you could use a <%# DataBinder.Eval %> in your aspx to set the style based upon the ID field and the query string.
EDIT: Code Sample, try adding this to your code behind.
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if(Request.QueryString["id"] != null &&
Request.QueryString["id"] == DataBinder.Eval(e.Row.DataItem, "id").ToString())
{
e.Row.Style.Add("font-weight", "bold");
}
}
}

It is an sample which when you select a row on Gridview child of selected node are shown in the same gridview:
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
LocationIDHiddenField.Value = Request.QueryString["LocationID"];
}
if (LocationIDHiddenField.Value != null && LocationIDHiddenField.Value != string.Empty)
LoadLocationParents();
}
private void LoadLocationParents()
{
long locationID = Convert.ToInt64(LocationIDHiddenField.Value);
bool IsCurrent = true;
HyperLink parent;
Label seperator;
do
{
Basic.Location.LocationProperties location = Basic.Location.LocationLoader.GetLocationProperties(locationID);
parent = new HyperLink();
seperator = new Label();
if (!IsCurrent)
parent.NavigateUrl = string.Format("LOCATIONLOV.aspx?LocationID={0}", location.LocationID);
IsCurrent = false;
parent.Text = location.LocationTitle;
seperator.Text = " > ";
ParentsPanel.Controls.AddAt(0, parent);
ParentsPanel.Controls.AddAt(0, seperator);
locationID = location.ParentID;
}
while (locationID != 0);
parent = new HyperLink();
parent.NavigateUrl = "LOCATIONLOV.aspx";
parent.Text = "upper nodes";
ParentsPanel.Controls.AddAt(0, parent);
}
GridView
<asp:GridView ID="ChildsGridView" runat="server" AutoGenerateColumns="False" DataKeyNames="LocationID"
DataSourceID="ChildsObjectDataSource" Width="570px" AllowPaging="True">
<Columns>
<asp:TemplateField>
<HeaderTemplate>
</HeaderTemplate>
<ItemStyle Width="20px" />
<ItemTemplate>
<a onclick="if ('<%# Eval("ChildCount") %>' == 'False') return false;" href='<%# Eval("LocationID", "LOCATIONLOV.aspx?LocationID={0}") %>' ><asp:Image ID="GridLocationLov" runat="server" ToolTip="Expand" SkinID="LOVChilds" /></a>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Title" SortExpression="LocationTitleType">
<ItemTemplate>
<span class="LOVSelectText" onclick="LOCATIONID = '<%# Eval("LocationID") %>'; LOCATIONTITLE = <%= ConfirmTextBox.ClientID %>.value = '<%# Eval("LocationTitle") %>';ChangeSelectedRow(this);">
<%# Eval("LocationTitleType")%>
</span>
</ItemTemplate>
<HeaderTemplate>
<asp:Label ID="GridHeadLabel" runat="server" OnLoad="GridHeadLabel_Load"></asp:Label>
</HeaderTemplate>
</asp:TemplateField>
</Columns>
<EmptyDataTemplate>
NO CHild
</EmptyDataTemplate>
</asp:GridView>
DataSource
<asp:ObjectDataSource ID="ChildsObjectDataSource" runat="server" OldValuesParameterFormatString="original_{0}"
SelectMethod="Retrive" TypeName="BASIC.LOCATIONLOV.LOCATIONLOVLoader">
<SelectParameters>
<asp:ControlParameter ControlID="LocationIDHiddenField" Name="ParentID" PropertyName="Value"
Type="Int64" />
<asp:Parameter DefaultValue="LocationTitle" Name="SortExpression" Type="String" />
</SelectParameters>
</asp:ObjectDataSource>
<asp:HiddenField ID="LocationIDHiddenField" runat="server" />
JavaScript
function ChangeSelectedRow(sender)
{
if (SelectedRow != null)
SelectedRow.style.backgroundColor = OriginalColor;
SelectedRow = sender.parentElement.parentElement;
OriginalColor = SelectedRow.style.backgroundColor;
SelectedRow.style.backgroundColor = 'red';
}