C# - Count Dynamically Added Table Rows?
Jul 9, 2010my table has already 5 rows...after pressing addow, rows are added dynamically to another table... i need to save the data of all the rows(5+newly added) in the database...
View 2 Repliesmy table has already 5 rows...after pressing addow, rows are added dynamically to another table... i need to save the data of all the rows(5+newly added) in the database...
View 2 RepliesI am adding table rows dynamically, after I return from a post back, these rows disappear.
Is there a way to preserve these rows and add them back on page load?
i need to create 2 temporary tables.The records inserted into the 2nd table is the same as that from table1.
Now, i am inserting some other records into table 2.what i need is, to retrieve the count of the recently added records into table2.How to achieve this?
I have a data table called Songs It has SongId as Primary Key of type INT SongName of Type VarChar UserId of Type Int. I simply want to check how many entries are in the Table already by The UserId before they insert more. So If there are already 3 songs by that User, I want to stop the insert process and warn them they have the maxium already. I think i am halfway there already using code below but problem is that UserId is of Type GUID, and not Int so I am missing something. On my Aspx, Page, I have a DetailsView for the Database Insert. I also have the following code using BusLogic Layer and DAL
SongsBLL
public int ScalarQuery(Guid ArtistId)
{
int returnValue = ScalarQuery(ArtistId);
return returnValue;
}
Code Behind ASPX page
This in in DetailsView_ Item Inserting Event
SongsBLL number = new SongsBLL();
currentCount = Convert.ToInt32(number.ScalarQuery(currentCount).ToString());..........
When a user submits the query to SQL when clicking a button I need to get a count of the number of rows that are returned. Which event does the gridview.count code need to be place in?
Right now I have it in the btn_click event, but in order to get it to count the rows you have to hit the button twice since the query is not returned yet. Here is my code.
[Code]....
So today I started learning ASP.NET. Unfortunately I haven't found any good tutorials online, and I can't afford to buy books at the moment, so I've had to create a ASP.NET web application in Visual Studio 2010 and just play around with the default project setup. So far here's what I have in my Default.aspx:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Project Management</title>
</head>
<body>
<div style="padding-bottom:10px;"> Project Management System</div>
<div> <table style="width:100%;">
<tr>
<td>Name</td>
<td>Task</td>
<td>Hours</td>
</tr>
</table></div>
</body>
</html>
I created a simple table with the header row already in there. Through a C# script, I want to be able to dynamically add rows to this HTML table. Is this the right way of thinking in ASP.NET? If so, how can I do this? I'm sure I'll need an "Add" button, which adds a new row to the table, with editable fields, and a "submit" button which adds some stuff to a database. Basically just a rundown of how this is done would be ever so helpful. Also if anyone knows any good tutorials or websites
Does anyone know how to dynamically add and remove rows in a table triggered by a button click from the backend (in c#) using asp.net?
Here's how it might be done in javascript, is there any way to do this in the asp.net framework?
[URL]
Protected Sub btnAddRow7_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnAddRow7.Click
Dim tableRow As New System.Web.UI.WebControls.TableRow
Dim tableCell As New System.Web.UI.WebControls.TableCell
Dim textBox As New System.Web.UI.WebControls.TextBox
tableCell.Controls.Add(textBox)
tableRow.Cells.Add(tableCell)
tbl7.Rows.Add(tableRow)
End Sub
but it only adds one row dynamically. After the first addition, more clicks to the button will not add more rows.
I created dynamically a table with 3 rows not by using table tag. I need to find these rows in scripting, in button click, if any of these rows is empty then need to generate an alert message like enter current row.
View 1 RepliesI'm maintaining a dynamically generated table in ASP.NET, which allows users to move items up and down in the table. What this essentially does behind the scenes is just swaps around the 'sortorder' which the table is sorted by. I have checks to see if a row is the first/last column, and if so only display up/down (whatever's relevant). An issue has crept up now and I have no idea why. For some reason, most of the time (not all of the time strangely) the up and down buttons don't work. Using 'Up' as an example, the current record does get set to the 'above' rows sortorder, but the 'above' row doesn't take the below rows sort order. Now I've set my breakpoints throughout my code, and strangely everything gets set fine. It's just when I call SubmitChanges() to the LINQ data context, that it seems to put the wrong value into the database. Also what's strange is that I think that if you click it again, it actually works. But it doesn't work properly as the number is still out by a bit.
Here's my code:
if (Request.QueryString["dir"] != null) {
if (Request.QueryString["dir"] == "up") {
var currentrecordup = (from s in dc.InvoiceItems
where Request.QueryString["val"] == s.id.ToString()
select s).Single();
int valsortidup = (int)currentrecordup.sortorder;
var prevrecordup = (from s in dc.InvoiceItems
where s.sortorder < valsortidup
orderby s.sortorder descending select s).First();
int prevsortidup = (int)prevrecordup.sortorder; int tempval = valsortidup;
currentrecordup.sortorder = prevsortidup; prevrecordup.sortorder = tempval; }
else if (Request.QueryString["dir"] == "down") {
var currentrecorddown = (from s in dc.InvoiceItems
where Request.QueryString["val"] == s.id.ToString()
select s).Single(); int valsortiddown = (int)currentrecorddown.sortorder;
var nextrecorddown = (from s in dc.InvoiceItems where s.sortorder > valsortiddown
orderby s.sortorder ascending select s).First();
int nextsortiddown = (int)nextrecorddown.sortorder; int tempvaldown = valsortiddown;
currentrecorddown.sortorder = nextsortiddown; nextrecorddown.sortorder = tempvaldown;}
dc.SubmitChanges(); Response.Redirect("EditInvoice.aspx?id=" + Request.QueryString["id"]);
}
The sortorder column in my table is an int field that allows nulls.
I am using ASP.NET3.5, I want to Add rows dynamically to a table.I have written this code.This code is working fine if the Page is not having masterPage file. If I use masterpagefile in my ASPX age,controls(textboxes) are displaying at bottom of the page,and the data in textboxes is not retaining after click on Add button.Disaapering the text box values. My .Aspx:
[Code]....
In my webform, i have 3-4 textbox, on there textchange event i have to fetch data from database and put it on the form. I have taken another html table (with runat="server") below textbox and and in textchange event created a new <tr>, <td> and simply added contents in <td>, then finally added <tr> in the table. This is done in UpdatePanel.
When i enter something in textbox1 data is added in that table,that's fine. But when i enter something in 2nd textbox the previous data is overridden. My requirement is that if 2nd textbox's text changes than another row with appropiate data should be added, i.e., now two rows. Silimarly if 3rd ,4th textbox data changes then subsequently 3 or 4 rows should be displayed.
I need to let my user add rows dynamically to a table, and after doing some research, it seems the best way to do this is through a GridView bound to a DataTable. However, I'm really struggling adding dropdownlists to the datatable, and this showing them in the gridview.
Here's the design I want:
ddl1 | ddl2 | ddl3 | ddl4 | ddl5 | ddl6 | ddl7 | textbox
When the user opens the form, he or she will be presented with one row. ddl2 etc will be populated when ddl1 is selected etc etc. When appropriate, the textbox will be enabled allowing the user to enter a comment (this is to report errors, and since users are, at best, not to trust to write the same thing twice, I need to use ddls.
Now comes the question - how do I add a ddl to the datatable? I've tried several ways, but I cannot get them added.
I've been searching for hours trying to figure this out. I understand that somehow I need to recreate the control in page_load. I think seeing the code will let us better understand what I'm trying to do.
[Code]....
[Code]....
In above query I want to have top 10 rows as well as count of all rows.
Here I am binding a gridview. I dont know exactly how many rows it will exists. there may be from 1 to n rows possible there are 4 columns.
Now what I want , i.e. after gridciew binds records, suppose there are 4 rows are bounded to gridview, I want to send all rows data through mail, but in my html format there are fixed rows. I want to add rows according to throws which gridview having.
suppose gridview binds 3 rows the mail format should be like this
Date From Date To Place Days
12/12/2010 14/12/2010 Mumbai 2
12/12/2010 16/12/2010 Goa 4
12/12/2010 20/12/2010 Pune 8
1. first tell me how to get this data from gridview in variables so that i can put them in my mail format
2. this condition if grid bind only three records cos I have fiexd rows in my html format.. but if grid is haing 5 records then how will I add rows to table in my mail html format
Add rows dynamically to a table and poulate data in cascading dropdowns,I am using ASP.NET3.5,
View 2 RepliesHow to create a table in the code behind to display data from the database by creating a new table etc. How I could target existing HTML in my aspx file as opposed to creating a new table in the code behind?
View 1 Replies[Code]....
this is the code for login.aspx.vb it checks the username and password in the database and redirecrs to respective page on the basis of rows returned. i'm having problem in finding a right function in the sqldatareader namespace so that it counts the number of rows affected.
which part when wrong if my code is wrong ? I'm using VS2010 have a dataset. Here is my code. [Code]....
View 4 RepliesDoes anyone know how to count the no of rows in asp:GridView using jQuery. If no rows found then I want to do stuff...
View 4 RepliesI add all row CheckBox in my Gridview helping with this article. Here is my Calculate Button code;
protected void Calculate_Click(object sender, EventArgs e)
{
bool atLeastOneRowDeleted = false;
foreach (GridViewRow row in GridView1.Rows)
{
CheckBox cb = (CheckBox)row.FindControl("ProductSelector");
if (cb != null && cb.Checked)
{
atLeastOneRowDeleted = true;
int productID = Convert.ToInt32(GridView1.DataKeys[row.RowIndex].Value);
Response.Write(string.Format( "This would have deleted ProductID {0}<br />", productID));
}
}
}
But when i do that, getting strange error like this;
I want to count the number of rows in Gridview ,thru JS. When SelectAll is executed,alert message 'a' is displayed,then page posts back to the server.1) It do not display the alert message gridLength 2)WHy the page is postbacked,I write return false???
Code:
function SelectAll()
{
alert('a');
var gvET='<%=GrdCostPetroleum.ClientID%>';
var gridLength = gvET.rows.length;
alert (gridLength );
return false ;
}
I create an one webpage in asp.net all the time i am facing the following pbm how to rectify it..
if(ds.Tables[0].Rows.Count > 0)
I'm very new to ASP.NET and MVC2 but I've managed to piece together a project that allows a user to create an entry in the SQL Express database - just like the "MVC Movie Application". However, I now want to utilize the [Log On] Forms Authentication feature. Requirement: when the user successfully registers an account my existing database needs to be updated with a row of data.
Using the MVC Movie Application as an example: the method "public ActionResult Register(RegisterModel model){}" [see: AccountController] needs to be wired to also perform "public ActionResult Create(Movie newMovie)" [see: MoviesController] how is this achieved ? (specifically, to update the MVC Movie application to create a new movie whenever someone registers a new account.)