I'm fairly new so I've been learning via examples. The idea of this part of the project is to present a list of items (out of a DB), and when you click on an image that's on the list, it should open a new window with the details. this is the snippet where
I send the variable:
<asp:ImageButton runat="server" ID="imagebutton1" ImageUrl="images/icon_lupa.gif"
I display a bunch of projects in a GridView. I want to create a TemplateField with a TextBox in it in my GridView. I want user to enter a dollar amount for each row i.e. project in the GridView which is the project budget. When the user clicks submit, I
want to collect the dollar amounts entered and commit them in the database to their corresponding projects.My question is: how do I itereate through all the rows of the GridView to see if user entered a dollar amount, and if so, collect it so that I can send it to my stored procedure?
I just wanted to get some ideas of what you would think be the best way to collect data/numbers that are part of a time series? Let's say I'm collecting monthly data from the users, related to some product and I'd like to be able to provide them a simple and efficient way of entering these numbers based on some month end period. So for instance on 6/30/2009, they could enter some numbers for a set of data points that pertain to that product. Would one of the data controls (such as GridView or DetailsView) be sufficient to do this? I know the GridView isn't so much able to save data but I believe the DetailsView has some functionality for that. In the end, I'd really like to provide a seemless way to do show this and ability to enter and save this.
View 2 RepliesI want to write the above form data to a sql server database
View 2 RepliesI have a checkboxlist inside of a wizard control. I need to collect the value of all items that are checked, as well as whatever value is inside of a textbox if "other" is checked, to insert into my database during the Wizard.FinishButtonClick event. How do I do this?
View 1 RepliesI am creating some cookies in my ASP.NET application. These cookies expire 10 minutes after they have been created. I follow the approach described on MSDN as shown here:[URL]
My question is, when a cookie "expires", what happens? Does the browser automatically delete the cookie? Is it our responsibility as developers to remove the cookies if they exist and have expired?
i need to save a timestamp byte[] array between page post backs in asp.net webforms and thought having a global variable in a class would work, but it does not?
View 1 RepliesNested GridView Control returns "Object variable or With block variable not set" when outer GridView returns rows.
The Nested GridView Control works as long as the outer GridView returns rows, the following code works: [Code]....
Object variable or With block variable not set.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object variable or With block variable not set.
Source Error:
Line 118: If e.Row.RowType = DataControlRowType.DataRow Then
Line 119: Dim myStatus_ID As SqlDataSource = CType(e.Row.FindControl("sqlDeviceStatusAssign"), SqlDataSource)
Line 120: If Not e.Row.DataItem("Status_ID") Is Nothing Then
Line 121: myStatus_ID.SelectParameters(0).DefaultValue = e.Row.DataItem("Status_ID")
Line 122: End If
I have tried checking for IsDbNull and checking to see if a label exists in a given row. This code *If Not e.Row.DataItem("Status_ID") Is Nothing Then* appears to do nothing.Same with the following:
*Dim localLblItemReference As Label = CType(e.Row.FindControl("lblItemReference"), Label)
*If Not localLblItemReference Is Nothing Then
******************************************************************************************
To further clarify my question above, I am looking for a method to detect e.Row.DataItem("Status_ID") is nothing/null due to the outer GridView returning 0 results in a query.I have a (Outer) GridView Control with another GridView Control inside of a template field with it's associated SqlDataSource control.
In the "Protected Sub GridViewReport_RowCreated", I provide the Select Parameter for the associated SqlDataSource with the DataItem row value.When the (Outer) GridView Control does not return any rows, the "e.Row.DataItem("Status_ID")" throws a:
Exception Details: System.NullReferenceException: Object variable or With block variable not set.
I am using three listviews on a page ... the first is always populated ... the other two are sometimes populated I want to total amounts and counts from all three ... so I set up steps in the DataBound events works great when all three listviews are populated the error "Object Variable or With block variable not set." occurs when LV2 or LV3 is not populated I've tried testing DataItem ... Is Nothing but get the failure on the If test instead
View 3 RepliesWe are upgrading the asp.net 2.0 web application to asp.net 4.0.
The application contain three main modules (sub application) like End User, Franchise and Admin with separate web.config, asp.net form Authentication, login page and running with single domain.
the URL like,
mydomain.com/login.aspx
mydomain.com/franchise/login.aspx
mydomain.com/admin/login.aspx
In asp.net 2.0, working fine with 3 sub applications with separate form authentication under a single domain name and also we can working with all threes in same time.
After the up gradation process (ASP.NET 2.0 to 4.0),
We didn't run all three applications in same times and also form authentication crossed.
I have a website which I want to use to collect payments from customers. An essay writing service is provided through the site.User's fill in a form and submit it. At the moment, when the form is submitted, it just fires an acknowledgement to the user that their order is being processed.I have used ASP.Net/C# for the web applicatioHow do I integrate paypal in the website so that user's can make paymen
View 1 RepliesI'm at my wits end on this one looked/Searched/Played/Experimented and I need your help if you can.This page is going to be primarily used on a mobile device using Win Mobile 5 Need to Accomplish:Prevent Postback(serverside) of Page using JavaScript (Postback's slow down the page on mobile device)
[code]...
I have a calculation in a gridview rowdatabound event that stores a value in a session variable. The problem is that after the page is viewed the first time, the value continues to accumulate each time it is posted back. How can I calculate the value the first time and stop it from continuting to recalculate and add to itself each time the page is reloaded?
View 7 RepliesI have made something like the following code:
protected void Page_Load(object sender, EventArgs e)
{
Label1.Text = Session["loginid"].ToString();
}
protected void delete_click(object sender, EventArgs e)
{
delete("mail1",Session["loginid"]);
}
private int delete(string mailid, string user)
{
System.IO.Directory.Delete(Server.MapPath(@"~files" + user + @"" + mailid), true);
}
When i press the delete button, everything works fine and the folder gets deleted. but after that when page postbacks again then a NullRefrenceException is raised at Label1.Text = Session["loginid"].ToString(); why is it happening...?? When I am not using this Directory.Delete() method everything is working fine and session variables are not set to null. When I traced my application I found that After Directory.Delete() method Session variables were intact and I was able to use those session variables in the processing after Directory.Delete(). But as soon as the page postbacks all session variables are set to null. And this problem doesn't appear when i m not using this delete() method. The folder I m deleting is in my project's folder. I m running this website using Visual Studio.
I want to add a page to an existing website with a list of practical system information about the server that's running the site. For example, which windows version, 32 or 64 bits, SQL Server version, some host variables, amount of RAM, disk space and whatever else. Basically, anything practical that could tell me more about the health of the server. So, how do I get the most practical information through .NET?
Not important how it's going to be displayed but assume it's a list with three columns: Name of the setting, value for the setting and a description that tells what the setting is for... (The first two would already be enough, though, but for clarifications a description would be nice.)
One added complication, though: I need both 32-bits and 64-bits solutions...
I'm using the inbuilt dot net authentication to register users in a simple web site and trying to add some extra information to be collected on registration. It currently asks for Usernname, email, password, confirm password. I'd like to add some extra bits, something like "favourite colour" - just a simple stringIs there an easy way of doing this? Maybe a simple tutorial I could follow?
View 2 RepliesAsp.net web application (source stored in svn) sqlserver database. (Database schema (tables/sprocs) stored in svn) db version is synced with web application assembly version. (stored in table 'CurrentVersion')CI hudson server that checks out web app from repo and runs custom msbuild file to publish/package app.
My msbuild script updates the assembly version of the web app (Major.Minor.Revision.Build) on each build. The 'Revision' is set to the currently checked out svn revision and the 'Build' to the hudson build number (incremented on each automated build).
This way i can match the app to a specific trunk revision also get other build stats from the hudson build number.
I'd like to automate the collecting of migration scripts (updated sprocs etc) to add to the zip package. I guess by comparing the svn revision of the db that has yet to be deployed to, to the revision being deployed, i can find what db files have changed in the trunk since the last deployment to that database/environment.
This could easily be achieved by manually calling the svn diff -r REVNO:REVNO command to list changed .sql files. These files could then manually have to be added to the package.
It would be great if this could be automated.
Firstly i'd imagine I'll have to write a custom task to check the version of the db that has yet to be deployed to. After that I'm quite unsure. how this would be achieved through an msbuild task either existing or custom?
Finally I'll have to autogen a script to add to the package that updates the database version table so as to be in sync with the application.
I'm using the DetailView control to display employee details from a specfic company, but it seems when I try to create the query in the data source wizard I'm unable to select the variable for the WHERE clause, only the web pages control components.
The employees are selected through the company name which is entered at the beginning of the page and in turn is used to select the company id.
I am not a fan of using string literals throughout my code. I have the following code right now:
[Code]....
trying to get something to work, which I think should be extremely easy.
I'm grabbing a value from my database with a repeater, and want to assign the value to a variable that I can parse and then send into javascript. 'videofile' is the variable from the database, and I want to assign the value to 'vidfile', parse it, and then inject into javascript:
<asp:Repeater ID="Repeater3" runat="server" DataSourceID="SqlDataSource11">
I need to get the value from a field in a GridView and and set that to a Session variable, however, it does not seem to be working...
Here is what I have:[Code]....
I am getting System.NullReferenceException: Object reference not set to an instance of an object.
I cant get this right
[Code]....
Where PKey is a variable that holds the Datakey
I want to grab a numeric value from the database and thereby use it in a datagrid. This will be connected to a linkbutton which has a hyperlink which will bring up profile information based on the number returned. I'm getting a value back but when I click the link, the querystring sees <% instead of the id number I want to use. So I'm really not sure what I'm missing so here's my code:
[Code]....
I have a Datalist and when a button is clicked I would like to send the values of the fields to a new page to fill some text boxes. What is the best way to do this. I had thought that since the DataList had itemtemplates that were labels I could reference them like regular labels ( str = Label1.text ). That isn't working. I was just going to send the values through a query string. Which I have an example of that, unless there is a better way.
View 3 RepliesI'm attempting to create a mailto in a gridView as follows:Code Behind (Page_Load)
[Code]....
ASPX Page
[Code]....
The hyperlink field will not grab the mailString variable. It's blank whether I use my constructed string or just the basic "TEST" string. What am I doing wrong?
