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How to store information in the view list in the database

How can I save rows created in the list view in my database? How can I access the values ​​in the (list view)? How to save the values ​​created in the view list to the database?
<asp:ListView ID="ListView1" runat="server">
<ItemTemplate runat="server">
<tr class="text-center">
<td class="product-remove"></td>
<td class="image-prod">
<div class="">
<asp:Image ID="Image1" CssClass=" img" ImageUrl='<%# "../img/" + Eval("picture" )%>' runat="server" />
</div>
</td>
<td class="product-name"><%# Eval("namebook") %> </td>
<td id="t_Plural" runat="server" class="price "><%# Eval("Price") %> </td>
<td class="quantity"><%# Eval("titel") %></td>
<td class="col-2">
<asp:Button ID="delete" CssClass="btn btn-outline-danger" CommandArgument='<%# Eval("id")%>' OnClick="delete_Click" runat="server" Text="حذف کالا" />
</td>
<td>
<%-- <input id="quantity2" runat="server" type="number" AutoPostBack="true" oninput="lod_gheymat" onserverclick="lod_gheymat" value="" min="1" max="20" />--%>
<asp:TextBox ID="quantity2" runat="server" CssClass="input-wrap" AutoPostBack="true" OnTextChanged="lod_gheymat" Text="1" min="1" max="20"></asp:TextBox>
</td>
<td >
<div class="row">
<asp:Label ID="lbl_Plural" runat="server" Text="0"></asp:Label> <span class="row"> تومان</span>
</div>
</td>
</tr>
</ItemTemplate>
</asp:ListView>

The way to approach this type of issue and problem is to NOT try and add to the database from the list view.
What you do is get your data (say in a data table).
then send the data table to the list view.
Now, if you want say a "add new row" button?
Add the row to the data table, and then re-bind the list view.
Next up?
You asking how to add this to the database, but is not that where it came form in the first place?
and it is VERY confusing that you asking how to add rows to this LV, but how is the user going to add the picture?
Next up, how is this post getting up-votes? I will assume up-votes are not being messed with? I'll put this issue aside, but something not fitting here.
Ok, so, how to add rows, and how to save such rows back to the database?
You can achieve this goal this way:
First, we assume the LV can now be freely edit. That means using text boxes.
so, we have this markup:
(probably not HUGE important the LV you have, but the "idea" outlined here should work fine).
<style> .borderhide input, textarea {border:none}</style>
<div style="width:70%;padding:20px">
<h2>Fighter Prints</h2>
<asp:ListView ID="ListView1" runat="server" DataKeyNames="ID" >
<ItemTemplate>
<tr style="">
<td><asp:TextBox ID="Fighter" runat="server" Text='<%# Eval("Fighter") %>' TextMode="MultiLine" /></td>
<td><asp:TextBox ID="Engine" runat="server" Text='<%# Eval("Engine") %>' TextMode="MultiLine" Width="200px" /></td>
<td><asp:TextBox ID="Thrust" runat="server" Text='<%# Eval("Thrust") %>' Width="70px" /></td>
<td><asp:TextBox ID="Description" runat="server" Text = '<%#Eval("Description") %>'
TextMode="MultiLine" Width="340px" Rows="5" /></td>
<td>
<asp:Image ID="iPreview" runat="server" Height="68px" Width="149px"
ImageUrl='<%# Eval("ImagePath") %>'/>
</td>
<td><asp:TextBox ID="Qty" runat="server" Text='<%# Eval("Qty") %>' style="width:30px;text-align:right"/></td>
<td><asp:TextBox ID="Price" runat="server" Text='<%# string.Format("{0:c2}",Eval("Price")) %>' style="Width:70px;text-align:right"/></td>
<td><asp:TextBox ID="Total" runat="server" Text='<%# string.Format("{0:c2}",Eval("Total")) %>' style="Width:70px;text-align:right" /></td>
</tr>
</ItemTemplate>
<LayoutTemplate>
<table id="itemPlaceholderContainer" runat="server"
class="table table-hover borderhide ">
<tbody>
<tr runat="server" style="" >
<th runat="server">Fighter</th>
<th runat="server">Engine</th>
<th runat="server">Thrust (lbs)</th>
<th runat="server">Description</th>
<th runat="server">Preview</th>
<th runat="server" style="text-align:right">Qty</th>
<th runat="server" style="width:70px;text-align:right">Price</th>
<th runat="server" style="width:70px;text-align:right">Total</th>
</tr>
<tr id="itemPlaceholder" runat="server" />
</tbody>
<tfoot>
<tr>
<td></td><td></td><td></td><td></td><td></td><td></td><td>Total</td>
<td><asp:TextBox ID="MyTotal" runat="server" Text="0" Width="70px" Style="text-align:right"></asp:TextBox></td>
</tr>
</tfoot>
</table>
</LayoutTemplate>
</asp:ListView>
Ok, so the code to load is now this:
DataTable rstData = new DataTable();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
LoadGrid();
Session["rstData"] = rstData;
}
else
rstData = Session["rstData"] as DataTable;
}
void LoadGrid()
{
using (SqlConnection conn = new SqlConnection(Properties.Settings.Default.TEST4))
{
using (SqlCommand cmdSQL = new SqlCommand("SELECT * from Fighters ", conn))
{
conn.Open();
rstData = new DataTable();
rstData.Load(cmdSQL.ExecuteReader());
rstData.Columns.Add("Total", typeof(decimal),"[Qty] * [Price]");
ListView1.DataSource = rstData;
ListView1.DataBind();
decimal myTotal = 0;
foreach (ListViewItem OneRow in ListView1.Items)
{
TextBox MyPrice = OneRow.FindControl("Total") as TextBox;
myTotal += Decimal.Parse(MyPrice.Text, NumberStyles.Currency);
}
// now update the final total label
TextBox lblTotal = ListView1.FindControl("MyTotal") as TextBox;
lblTotal.Text = string.Format("{0:c2}", myTotal);
}
}
}
And now we have this:
Ok, for the above, note how we added 3 buttons below the LV.
And becuase I wanted "cute" icons in the buttons, I dropped in hteml buttons, not asp.net ones. But, with a "id" and runat=server, they work JUST the same anyway.
So, our 3 buttons are (right after the LV markup)
<div style="float:left">
<button id="cmdSave" runat="server" class="btn" onserverclick="cmdSave_ServerClick">
<span aria-hidden="true" class="glyphicon glyphicon-save"></span> &nbspSave
</button>
<button id="cmdUndo" runat="server" class="btn" style="margin-left:10px" onserverclick="cmdUndo_ServerClick">
<span aria-hidden="true" class="glyphicon glyphicon-retweet"></span> &nbspUn do
</button>
</div>
<div style="float:right">
<button id="cmdAddNew" runat="server" class="btn" onserverclick="cmdAddNew_ServerClick">
<span aria-hidden="true" class="glyphicon glyphicon-new-window"></span> &nbspAdd New
</button>
</div>
Ok, so of the 3, the un-do button code is easy:
protected void cmdUndo_ServerClick(object sender, EventArgs e)
{
// undo changes - just re-load the lv
LoadGrid();
}
Ok, now the save button. This save button will:
save any new rows, and ALSO save any editing we do. Remember, since we used text boxes, then I can quite much tab around - edit ANY row. If I hit save, then we save all edits AND ALSO any new row added.
So, the save button does this:
protected void cmdSave_ServerClick(object sender, EventArgs e)
{
GridToTable(); // send lv to table
SaveToDatabase();
}
So, now we need the routine to send the LV to the table. That code is this:
void GridToTable()
{
// pull grid rows back to table.
foreach (ListViewItem rRow in ListView1.Items)
{
int RecordPtr = rRow.DataItemIndex;
DataRow OneDataRow;
OneDataRow = rstData.Rows[RecordPtr];
OneDataRow["Fighter"] = ((TextBox)rRow.FindControl("Fighter")).Text;
OneDataRow["Engine"] = ((TextBox)rRow.FindControl("Engine")).Text;
OneDataRow["Thrust"] = ((TextBox)rRow.FindControl("Thrust")).Text;
OneDataRow["Description"] = ((TextBox)rRow.FindControl("Description")).Text;
OneDataRow["Qty"] = ((TextBox)rRow.FindControl("Qty")).Text;
OneDataRow["Price"] = Decimal.Parse(((TextBox)rRow.FindControl("Price")).Text,
NumberStyles.Currency);
}
}
So, the above takes ANY edit - any row you edit, and send changes from LV->rstData.
So, now we need the rstData save all rows, all edits, all additions back to the database, and that code is this:
void SaveToDatabase()
{
using (SqlConnection conn = new SqlConnection(Properties.Settings.Default.TEST4))
{
using (SqlCommand cmdSQL = new SqlCommand("SELECT * FROM Fighters", conn))
{
conn.Open();
SqlDataAdapter da = new SqlDataAdapter(cmdSQL);
SqlCommandBuilder daU = new SqlCommandBuilder(da);
da.Update(rstData);
}
}
}
So, now that is quite much all we need.
The last button, "add row" is also easy, and looks like this:
protected void cmdAddNew_ServerClick(object sender, EventArgs e)
{
// user might have done some editing, so, pull LV to table
// just in case
GridToTable();
// add new row to database
DataRow MyNewRow = rstData.NewRow();
// setup some defaults and values for this new row
//MyNewRow["DateCreate"] = DateTime.Now;
rstData.Rows.Add(MyNewRow);
ListView1.DataSource = rstData;
ListView1.DataBind();
}
That is it. So, if I am looking at above LV, and hit add-new, we now have this:
so I can just fill out the information, and then hit save. If I hit un-do, then the row will not be added (nor saved).
Note how we had a min of code to do the save. Note how we did not mess with a boatload of templates (and thus save world poverty).
So, this works really nice, was not a lot of code and the real secrets "idea" here was persisting the rstData. This allows great ease of adding new rows, but MORE important it was very simple then to send the edits back to the database, and that one save command will not only save any editing in the LV, but also will create the new rows in the database for you. So, you can quite much tab around in that lv - almost like excel. So we don't have a huge mess of "edit" buttons, and all that jazz. Just a simple grid of data, and a simple save, or add new button.
Note VERY careful how the GridToTable works. As this shows HOW to grab, and get values from the LV, and that was quite much the "major" part of your question. So, you can grab any row of the LV, but to pull values out of the one row, you have to use "FindControl".

protected void savetodatabase_Click(object sender, EventArgs e)
{
System.Web.UI.HtmlControls.HtmlGenericControl Labelid;
TextBox quantity2;
foreach (ListViewItem rRow in ListView1.Items)
{
itemlist iteml = new itemlist();
quantity2 = (TextBox)rRow.FindControl("quantity2");
Labelid = (System.Web.UI.HtmlControls.HtmlGenericControl)rRow.FindControl("Labelid");
iteml.quantity = quantity2.Text;
iteml.bookid = Convert.ToInt32(Labelid.InnerText) ;
iteml.Date = DateTime.Now;
iteml.userid = Convert.ToInt32(Session["userid"].ToString()) ;
DatabaseContext context = new DatabaseContext();
context.itemlists.Add(iteml);
context.SaveChanges();
}
}

Prevent Form Resubmit

I've been looking for this answer for a couple weeks now but many other questions/answers don't fit my project or simply don't work.
Let me explain my project.
It is a simple View Page which on page load it would set the Text to different fields throughout the page. On the bottom I have a container with buttons which control which div is displayed in the container. On each click of the button, I run some code to set data sources to grid views or fill fields with text. I noticed when I click F5 to refresh the page I get that pesky "form resubmission" popup which will cause the last button click such as appending a note to a listview to be duplicated.
Here is some code to understand what I am doing
HTML(Not complete, just necessary to understand my question)
<td style="vertical-align: top;" class="Flow-Sub-Menu">
<asp:Button ID="Button_Sub_Menu_Financial" runat="server" Text="Financial Info" OnClick="Button_Sub_Menu_Financial_Click" />
<asp:Button ID="Button_Sub_Menu_Indemnitors" runat="server" Text="Indemnitors" OnClick="Button_Sub_Menu_Indemnitors_Click" />
<asp:Button ID="Button_Sub_Menu_Court" runat="server" Text="Court Info" OnClick="Button_Sub_Menu_Court_Click" />
<asp:Button ID="Button_Sub_Menu_Forfeiture" runat="server" Text="Forfeiture Info" OnClick="Button_Sub_Menu_Forfeiture_Click" />
<asp:Button ID="Button_Sub_Menu_Collaterals" runat="server" Text="Collaterals" OnClick="Button_Sub_Menu_Collaterals_Click" />
<asp:Button ID="Button_Sub_Menu_Notes" runat="server" Text="Notes" OnClick="Button_Sub_Menu_Notes_Click" />
<asp:Button ID="Button_Sub_Menu_Documents" runat="server" Text="Documents" OnClick="Button_Sub_Menu_Documents_Click" />
</td>
<div id="Div_Sub_Menu_Notes" runat="server" visible="false">
<div class="row">
<div class="col-xs-4" style="min-width: 550px;">
<div class="Flow-Box">
<div class="Flow-Box-Content" style="height: 440px; overflow-y: scroll;">
<asp:ListView ID="LV_Notes" runat="server" ItemPlaceholderID="ItemPlaceHolder" DataKeyNames="Bond_Note_ID" OnPagePropertiesChanging="LV_Notes_PagePropertiesChanging" OnItemCommand="LV_Notes_ItemCommand">
<LayoutTemplate>
<table style="width: 500px; background-color: white;">
<tr id="ItemPlaceHolder" runat="server"></tr>
<tr>
<td colspan="2">
<asp:DataPager ID="DataPager_Notes" runat="server" PagedControlID="LV_Notes" PageSize="3">
<Fields>
<asp:NextPreviousPagerField ButtonType="Link" ShowFirstPageButton="false" ShowPreviousPageButton="true"
ShowNextPageButton="false" />
<asp:NumericPagerField ButtonType="Link" />
<asp:NextPreviousPagerField ButtonType="Link" ShowNextPageButton="true" ShowLastPageButton="false" ShowPreviousPageButton="false" />
</Fields>
</asp:DataPager>
</td>
</tr>
</table>
</LayoutTemplate>
<ItemTemplate>
<tr>
<td colspan="2" style="padding-left: 10px; padding-right: 10px;">
<div style="border: 2px solid grey; height: 75px; padding: 5px;">
<%# Eval("Note") %>
</div>
</td>
</tr>
<tr>
<td style="padding-left: 10px;" <%# (Eval("Document_ID").ToString() != "" ? "" : "hidden=\"hidden\"") %>>
<label>Document Attached : <%# Eval("Document_Title").ToString() %></label>
</td>
<td style="text-align: right; padding-right: 10px;" <%# (Eval("Document_ID").ToString() != "" ? "" : "hidden=\"hidden\"") %>>
<asp:Button ID="Button_View_Document" runat="server" Text="View/Download Document" CommandName="View_Document" CommandArgument='<%#Eval("Document_ID")%>' />
</td>
</tr>
<tr>
<td style="text-align: left; padding-left: 10px;">
<div>
<%# Convert.ToDateTime(Eval("Created_DateTime")).ToShortDateString() + " " + Convert.ToDateTime(Eval("Created_DateTime")).ToShortTimeString() %>
</div>
</td>
<td style="text-align: right; padding-right: 10px;">
<div>
<%# Eval("Full_Name") %>
</div>
</td>
</tr>
<tr>
<td colspan="2" style="height: 20px; border-top: 4px solid #009900;"></td>
</tr>
</ItemTemplate>
</asp:ListView>
</div>
</div>
</div>
<div class="row">
<div class="col-xs-4" style="min-width: 500px;">
<div class="Flow-Box">
<div class="Flow-Box-Label">
New Note
</div>
<div class="Flow-Box-Content">
<table class="Flow-Box-Table">
<tr>
<td>
<textarea id="TextArea_New_Note" runat="server" style="width: 400px; height: 150px;"></textarea>
</td>
</tr>
<tr>
<td>
<asp:Button ID="Button_Append_New_Note" runat="server" OnClick="Button_Append_New_Note_Click" Text="Append Note" />
</td>
</tr>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
C# Codebehind
protected void Button_Sub_Menu_Notes_Click(object sender, EventArgs e)
{
resetSubMenuButtons();
Button_Sub_Menu_Notes.BackColor = System.Drawing.Color.Orange;
Div_Sub_Menu_Notes.Visible = true;
string bondID = Request.QueryString["BondID"];
bindNotes(bondID);
}
protected void bindNotes(string bondID)
{
DataTable dt = Common_Functions.GetData("SELECT * FROM View_Bond_Notes_With_Name WHERE Bond_ID='" + bondID + "' ORDER BY Created_DateTime DESC");
LV_Notes.DataSource = dt;
LV_Notes.DataBind();
}
protected void LV_Notes_PagePropertiesChanging(object sender, PagePropertiesChangingEventArgs e)
{
(LV_Notes.FindControl("DataPager_Notes") as DataPager).SetPageProperties(e.StartRowIndex, e.MaximumRows, false);
string bondID = Request.QueryString["BondID"];
bindNotes(bondID);
}
protected void LV_Notes_ItemCommand(object sender, ListViewCommandEventArgs e)
{
if (String.Equals(e.CommandName, "View_Document"))
{
ListViewDataItem dataItem = (ListViewDataItem)e.Item;
string documentID = e.CommandArgument.ToString();
Session["BondDocumentID"] = documentID;
Page.ClientScript.RegisterStartupScript(GetType(), "openDocument", "window.open('/FileServing/Bond_Document_Server.aspx');", true);
}
}
protected void Button_Append_New_Note_Click(object sender, EventArgs e)
{
string bondID = Request.QueryString["BondID"];
string UserID = Request.Cookies["UserID"].Value;
string newNote = TextArea_New_Note.Value;
if (String.IsNullOrWhiteSpace(newNote))
{
return;
}
cmd = new SqlCommand("INSERT INTO Bond_Notes " +
"(Bond_ID, Created_DateTime, Created_By, Note) " +
"VALUES " +
"(#Bond_ID, #Created_DateTime, #Created_By, #Note)", conn);
cmd.Parameters.AddWithValue("#Bond_ID", bondID);
cmd.Parameters.AddWithValue("#Created_DateTime", DateTime.Now);
cmd.Parameters.AddWithValue("#Created_By", UserID);
cmd.Parameters.AddWithValue("#Note", (String.IsNullOrWhiteSpace(newNote) ? (object)DBNull.Value : newNote));
conn.Open();
cmd.ExecuteNonQuery();
conn.Close();
TextArea_New_Note.Value = "";
bindNotes(bondID);
}
So when the user clicks "Button_Append_New_Note", the code will fire to run the sqlcommand and then refreshes the ListView by calling the "bindNotes(bondID)". If the user clicks F5 or hits refresh for whatever reason, they are resubmitting that form and add duplicates. I've read many solutions to redirect to the same page, this will not work in my case since the div would be hidden again and I would prefer the Notes div to stay visible so the user can see their new note in the listview. I also prefer not to have an sql check to look for a duplicate and prevent an insert since I may want the user to insert duplicates if they chose to at another time, but the user would manually type in the duplicate.
Any recommendations or suggestions on how to avoid the form resubmission?
Also please no criticizing on the code, I am looking for answers, not a lecture on why its bad to build an SQL sentence with inline string addition. I will correct and optimize these faults eventually.
If you found my solution elsewhere, please ensure it would work in my case cause I have found my same question many times, but not with my scenario.
Thanks in advance.

As you probably know, ASP.NET Web Forms send POST requests back to the server and then re-render the Page in the same request. This is why we see the form re-submission message when we click "reload".
To avoid this issue, we should employ the post-then-redirect pattern used by many web applications. Here's a quick overview:
A user clicks a button which submits the form as a POST request.
The server receives the request and saves the data.
The server issues a redirect response along with any needed state.
The browser receives the redirect and loads the appropriate page by sending a GET request.
Because we redirect the browser to a new (or the same) location, this clears the POST data from the previous request so we can hit "reload" without re-submitting the same data again. The URL that we redirect to should contain only the data needed for the server to interpret what to display on the page. This pattern provides a durable way to maintain state between requests in HTTP.
To apply this to the Web Form in the question, we need to change some assumptions about how the page loads. Instead of binding the notes to the page after running each POST action, we'll redirect the user first, and then bind the notes:
protected void Button_Append_New_Note_Click(object sender, EventArgs e)
{
string bondID = Request.QueryString["BondID"];
// Save the new note...
Response.Redirect("http://example.com/Page.aspx?BondID=" + bondID);
}
Then, when the browser loads the redirect:
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
bindNotes(Request.QueryString["BondID"]);
}
}
We'll need to change each of the post-back methods to use this pattern. Some of the methods may need to add additional parameters to the redirect URL that the page reads to configure the display.

This is quite easy and blocks the pop up asking for form resubmission on refresh once the form is submitted. Just place this line of javascript code at the footer of your file and see the magic.
<script>
if ( window.history.replaceState ) {
window.history.replaceState( null, null, window.location.href );
}
</script>

ASP.NET passing a function return value from a modalpopupextender to the main form

I have looked at a number of solutions to my basic issue, but have not found any solution that I either understand or that would work.
I have a page that takes in two items of information, filename and a store. The user then clicks on a button to execute a function that will update a database and send back a resulting string that I want to display on a textbox on the main form.
However, when they press the button I call a modalpopupextender using an UpdatePanel panel. That gets a value into the modalpopup. If the user validates that the correct store is selected they click an 'okay' button which then call the dbprocessing function that returns a result. The page is small so I'll give the complete aspx and c# code.
The function doProcess() returns a List of values which I convert to String for display. I left the session variables in for that was my last attempt at trying to get this to work.
Where I am confused is that when the first button on the main form (Process) is clicked, there is a postback which obviously hits the page load before the button click. That is when I display the popup. Then when the user clicks on the button Okay, another postback is perform hitting page load before the button click and in that second button I originally tried to set the textbox on the main page because there is no other action after the second click, but no data displayed.
What is strange, if I repeat the process, when I click to display the popup, my data displays. This is not making sense.
This is the aspx page
<%# Page Title="Product Rank Loader" Language="C#" MasterPageFile="~/OMnested.master" AutoEventWireup="true" CodeBehind="ProductRankLoader.aspx.cs" Inherits="OrderManager.ProductRankLoader" %>
<%# Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajax" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
<script type="text/javascript" src="Scripts/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="Scripts/local.js"></script>
<script type="text/javascript">
function callme(thisone)
{
$("#ddlStores").prop('disabled', false);
}
</script>
<div>
<table style="width: 500px">
<tr>
<td>
<asp:Label ID="lblMessage" runat="server"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:FileUpload ID="fulRanks" runat="server" Width="315px" />
</td>
</tr>
<tr>
<td>
<asp:DropDownList ID="ddlStores" runat="server" Height="16px" Width="155px">
<asp:ListItem Value="0">Select Store</asp:ListItem>
<asp:ListItem Value="10101">Parkseed</asp:ListItem>
<asp:ListItem Value="10151">Wayside</asp:ListItem>
<asp:ListItem Value="10201">Jackson (JP)</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td style="height: 20px; padding-top: 15px; padding-bottom: 15px; padding-left: 20px;">
<asp:Button ID="btnProcess" runat="server" Text="Process" Width="89px" OnClick="btnProcess_Click" />
</td>
</tr>
<tr>
<td>
**<asp:TextBox ID="txtResults" runat="server" Height="200px" ReadOnly="True" TextMode="MultiLine"></asp:TextBox>**
</td>
</tr>
</table>
<asp:HiddenField ID="hdnFilename" runat="server" />
</div>
<asp:UpdatePanel id="updVerifyChoice" runat="server">
<ContentTemplate>
<div style="display: none;">
<asp:Button ID="btnDummy" UseSubmitBehavior="true" OnClientClick="ShowModalPopup" OnClick="btnDummy_Click" runat="server" />
<%--Dummy Button added to assign the target controlid of PopupExtender--%>
<asp:Button ID="btnDummyButton" UseSubmitBehavior="true" runat="server" Text="DummyButton" Style="display: none;" />
</div>
<asp:Panel ID="pnlVerifyRequestPopup" runat="server">
<div style="background: #fff; padding-left: 3px; border: 1px solid #989898; border-top: 1px solid #989898 !important;">
<table style="background-color: #F7F5F4; width: 300px;">
<tr>
<td><label>Verify Process Request</label></td>
<td style="text-align: right;">
<label class="lbl_3">
<asp:LinkButton ID="lBtnVerifyRequestClose" CssClass="lnkCloseheaderedit" Text="Cancel"
runat="server" OnClick="lBtnBillUpdPopClose_Click" /></label>
</td>
</tr>
<tr>
<td style="width: 150px;" colspan="2">
<asp:Label ID="lblWarn" runat="server" Text="" Font-Size="Medium" ForeColor="#CC3300"></asp:Label>
</td>
</tr>
<tr>
<td colspan="2" class="align_right">
<asp:Button ID="btnPopVerify" runat="server" CssClass="order_searchbtn" Text="Okay"
OnClick="btnPopVerify_Click" />
</td>
</tr>
</table>
<asp:HiddenField ID="hdnReturnData" runat="server" />
</div>
</asp:Panel>
<ajax:ModalPopupExtender ID="extVerifyProcess" runat="server" BehaviorID="extndPopBillUpdBehId"
TargetControlID="btnDummyButton" PopupControlID="pnlVerifyRequestPopup" CancelControlID="lBtnVerifyRequestClose">
</ajax:ModalPopupExtender>
</ContentTemplate>
</asp:UpdatePanel>
</asp:Content>
The field in question that should get the returned values from the function is called txtResults.
Here is the c# code (I cut out unneeded code)
namespace OrderManager
{
public partial class ProductRankLoader : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
var currentUser = Request.LogonUserIdentity.Name.Split('\\')[1];
// Session.Add("returnText", "");
var header = Master.FindControl("lblpageheading") as Label;
header.Text = "Product Rank Loader";
if (IsPostBack)
{
try
{
//if (Session["Verified"].ToString() != "")
//{
Session["returnText"] = doProcess();
if (Session["returnText"].ToString() != "")
{
txtResults.Text = Session["returnText"].ToString();
lblMessage.Text = "";
}
//}
}
catch { }
} else
{
Session.Add("returnText", "");
Session.Add("Verified", "");
}
}
protected void btnProcess_Click(object sender, EventArgs e)
{
Boolean fileOK = false;
string filename = Path.GetFileName(fulRanks.FileName);
hdnFilename.Value = filename;
if (fulRanks.HasFile)
{
ddlStores.Enabled = true;
String fileExtension =
System.IO.Path.GetExtension(fulRanks.FileName).ToLower();
String[] allowedExtensions = { ".txt", ".log" };
for (int i = 0; i < allowedExtensions.Length; i++)
{
if (fileExtension == allowedExtensions[i])
{
fileOK = true;
fulRanks.SaveAs(#"c:\temp\" + filename);
}
}
}
if (!fileOK || ddlStores.SelectedIndex <= 0)
{
lblMessage.Text = "Either the file name is incorrect or a store has not been selected.";
return;
} else { }
lblWarn.Text = "You are going to update item Ranks for store <br />" + ddlStores.SelectedItem + ".<br /><br />Press 'Okay' to process";
Session.Add("Verified", "true");
extVerifyProcess.Show();
}
protected void lBtnBillUpdPopClose_Click(object sender, EventArgs e)
{
Session["Verified"] = "";
Session["returnText"] = "";
Response.Redirect("ProductRankLoader.aspx");
}
protected void btnPopVerify_Click(object sender, EventArgs e)
{
//Session["returnText"] = doProcess();
Session.Remove("returnText");
Session.Remove("Verified");
}
private string doProcess()
{
string tmpResults = "";
Int32 store = 0;
if (ddlStores.SelectedIndex > 0)
{
Int32.TryParse(ddlStores.SelectedValue.ToString(), out store);
string filename = hdnFilename.Value;
ProductRankLoaderDLL.ProductRankLoaderDLL newRanks = new ProductRankLoaderDLL.ProductRankLoaderDLL(xxx);
List<string> results = newRanks.ProcessRanks();
foreach (string result in results)
{
tmpResults += result + '\r';
}
// txtResults.Text = tmpResults;
lblMessage.Text = "";
}
else
{
lblMessage.Text = "";
}
return tmpResults;
}
protected void btnDummy_Click(object sender, EventArgs e)
{
}
}
}

If I don't misunderstand your request your problem is caused by the postbacks. I think you can handle better your logic with jquery. For example you can use jquery to close the popup without performing postback:
$('#lBtnVerifyRequestClose').click(function (event) {
event.preventDefault();
$('#pnlVerifyRequestPopup').dialog('close');
});
the event.preventDefault() ensure that postback are not executed.
If you need server logic to put data on your popup you can bind a jquery function to the dialog on open event and retrieve there data / perform your logic. In this way your form will be submitted to the server only once at the end of the process.

Output parameter from SQL Server not printing to web form

I have a store procedure
create proc spAddEmployees
#Name varchar(50),
#Gender varchar(10),
#Salary int,
#EmployeeId int out
as
begin
insert into tblEmployees values (#Name, #Gender, #Salary)
select EmployeeId = SCOPE_IDENTITY()
end
which has an output parameter that tells the user the current scope_identity
The markup looks like
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
<table style="border: 1px solid black; font-family:Arial">
<tr>
<td>
Employee Name
</td>
<td>
<asp:TextBox ID="txtEmployeeName" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td>
Gender
</td>
<td>
<asp:DropDownList ID="ddlGender" runat="server">
<asp:ListItem>Male</asp:ListItem>
<asp:ListItem>Female</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td>
Salary
</td>
<td>
<asp:TextBox ID="txtSalary" runat="server"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan="2">
<asp:Button ID="btnSubmit" runat="server" Text="Submit"
onclick="btnSubmit_Click" />
</td>
</tr>
<tr>
<td colspan="2">
<asp:Label ID="lblMessage" runat="server"></asp:Label>
</td>
</tr>
</table>
And the code behind
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
//read from the config file so you don't have to hardcode the connection string
string cs = ConfigurationManager.ConnectionStrings["dbcs"].ConnectionString;
//when you use the using statement the database connection is automatically closed for you
using(SqlConnection con = new SqlConnection(cs))
{
SqlCommand cmd = new SqlCommand("spAddEmployees", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddWithValue("#Name", txtEmployeeName.Text);
cmd.Parameters.AddWithValue("#Gender",ddlGender.SelectedValue);
cmd.Parameters.AddWithValue("#Salary", txtSalary.Text);
SqlParameter outputParmeter = new SqlParameter();
outputParmeter.ParameterName = "#EmployeeId";
outputParmeter.SqlDbType = SqlDbType.Int;
outputParmeter.Direction = ParameterDirection.Output;
cmd.Parameters.Add(outputParmeter);
con.Open();
cmd.ExecuteNonQuery();
string EmpId = outputParmeter.Value.ToString();
lblMessage.Text = "Employee Id = " + EmpId;
}
}
}
This program should add a new row to the tblEmployees table and then output to the user the output parameter of the stored procedure. It runs and adds the row to the number when the button is clicked, but the output parameter isn't being printed to the screen. Thoughts?

Perhaps:
select EmployeeId = SCOPE_IDENTITY()
In the stored procedure should be:
select #EmployeeId = SCOPE_IDENTITY()

The syntax in the stored procedure isn't right.
You should use
select #EmployeeId = SCOPE_IDENTITY()
^
and also the usual way to retrieve the output parameter is through the command collection. I am not sure that in the process the parameter is replaced somewhere
string EmpId = cmd.Parameters["#EmplyeeId"].Value.ToString();

How to get a runtime control id

Using asp.net and c#
Asp.net code
<asp:Button ID="btnAddNew" runat="server" Text="Add New"
onclick="btnAddNew_Click" />
<div id="divAdd" runat="server" style="display:none" >
<table width="100%">
<tr>
<td colspan="1">First Name :</td>
<td colspan="1" align="left"><asp:TextBox ID="txtFName" runat="server" ></asp:TextBox> </td>
</tr>
<tr>
<td colspan="1">Last Name :</td>
<td colspan="1" align="left"><asp:TextBox ID="txtLName" runat="server" ></asp:TextBox> </td>
</tr>
<tr>
<td colspan="1">Date Of Birth :</td>
<td colspan="1" align="left"><asp:TextBox ID="txtDob" runat="server" ></asp:TextBox> </td>
</tr>
<tr>
<td colspan="1">Age :</td>
<td colspan="1" align="left" ><asp:TextBox ID="txtAge" runat="server" ></asp:TextBox> </td>
</tr>
<tr>
<td colspan="2" align="center">
<asp:Button ID="btnSave" runat="server" Text="Save" OnClientClick=" return validate()" type="submit" />
<asp:Button ID="btnClose" runat="server" Text="Close" OnClientClick ="return clear()" type="submit" />
</td>
</tr>
</table>
</div>
C# Code
static void Insert()
{
try
{
string connectionString =
"server=JEBW1011ZAHID;" +
"initial catalog=employee;" +
"integrated security = true";
using (SqlConnection conn =
new SqlConnection(connectionString))
{
conn.Open();
using (SqlCommand cmd = new SqlCommand(
"INSERT INTO [NyhedTB] ([NyhedDato], [NyhedTitel], [NyhedTekst]) " +
"VALUES (#NyhedDato, #NyhedTitel, #NyhedTekst)", conn))
{
cmd.Parameters.AddWithValue("#NyhedDato", txtfname.Text);
cmd.Parameters.AddWithValue("#NyhedTitel", txtlanme.Text);
cmd.Parameters.AddWithValue("#NyhedTekst", txtage.Text);
int rows = cmd.ExecuteNonQuery(); // Inserted rows number
}
}
}
catch (SqlException ex)
{
//Log exception
//Display Error message
}
}
Showing error as txtfname does not exist.
Need code help

You Insert method is static. It doesn't have access to any page elements. I would recommend you passing those values as parameters to the method instead of coupling it with your UI:
static void Insert(string fName, string lName, string age)
{
try
{
string connectionString =
"server=JEBW1011ZAHID;" +
"initial catalog=employee;" +
"integrated security = true";
using (SqlConnection conn = new SqlConnection(connectionString))
{
conn.Open();
using (SqlCommand cmd = new SqlCommand(
"INSERT INTO [NyhedTB] ([NyhedDato], [NyhedTitel], [NyhedTekst]) " +
"VALUES (#NyhedDato, #NyhedTitel, #NyhedTekst)", conn))
{
cmd.Parameters.AddWithValue("#NyhedDato", fName);
cmd.Parameters.AddWithValue("#NyhedTitel", lName);
cmd.Parameters.AddWithValue("#NyhedTekst", age);
int rows = cmd.ExecuteNonQuery(); // Inserted rows number
}
}
}
catch (SqlException ex)
{
//Log exception
//Display Error message
}
}
and then when calling this method from your code behind you could pass whatever values you want:
protected void SomeButton_Click(object sender, EventArgs e)
{
Insert(txtfname.Text, txtlanme.Text, txtage.Text);
}
Now your Insert method is a little more reusable as it is no longer coupled to your UI.

Remove the static in your method
Put this code public void Insert() instead of static void Insert()