.net - Grabbing Data From Controls In Code Behind?
Apr 22, 2010
I have a drop down list control that I need to pull the value from in the code behind of the page, modify it and redisplay it. The modifying and redisplaying I've got no problem with, it's grabing the value from the drop down control.
I have a Gridview where some columns are populated with numbers of type nvarchar() and some columns are filled with numbers of type int I am trying to grab the a cell from a selected row that corresponds to a Table's KeyID and assign it to a label like so:
Problem: If the Gridview column 8 has numbers of type nvarchar() it works fine But if column 8 has numbers of type int , it does not work. It's probably simple, but I dont see it.
We have a GridView2 in GridView1 EditTemplate.And we have a button (commandname="Update") on GridView2.When Button1 is clicked GridView1 goes into edit mode and displays GridView2.Now when Button2 is Clicked, we want the cell[0] value of GridView2 to be displayed as Label1 Text on GridView1 and comeout of the GridView1 edit mode.Basically we want to capture gridView2 cell[0] value and display that on Label1 of GridView1.We have written the below code. But we are unsure on how to grab GridView2.cell[0] value and display it as Label1 text.Can someone please assist us with this?Also, we are not sure if we can use rowupdated event for this. Please also guide us which events we should be using to achieve the functionality.
I've setup a dataset to make the connection to SQL to pull the database information and to create all the methods needed.Now I'm stuck on how to use that to fill out text boxes I have on the page with data from specific columns.
I have a page where it is getting overwhelmed with code like:ar textBox = $get("<%=textState.ClientID%>");This requires me to have my JavaScript inside the page instead of nicely tucked in a js file. Is there a better approach to this?
document.getElementById doesn't work because then I end up with code like this: var textBox = document.getElementById("originDestinationControl_textState"); var textBox = document.getElementById("ctl00_ContentPlaceHolder_originDestinationControl_textState");
For some reason the code, <% Response.Write(Request.QueryString["title"]); %>, does not retrieve the data in this case. It works fine if I put it in the title tag though.
So far it seems like I get something figured out then run into another issue... Anyways, I was finally able to grab an ID from a table and enter the value into a Label using this code:
[Code]....
Now i want to make things trickier by grabbing the last value enterd. Now there will possibly be multiple people using the application simultaneously, i think it is still possible to do this. Here is the statement that enters VALUES into the table that generates the CaseID that i want to grab from:
[Code]....
From what i have researched, I may need to do a WHERE some where to grab the @@IDENTITY. I am having trouble figuring out where the @@IDENTITY goes, and possibly the correct syntax as well.
I have a registration form which is working perfectly well, I need to enhance it slightly from where it is. As it is users are able to register for an account wether the email has been previously used/allocated in the user db.A client side call to the IsEmailAvailable function works great, just not working correctly server side. Here is the code.
My function:
[Code]....
And my if statement:
[Code]....
So my question is, how can I pass the end value of the IsEmailAvailable function to my if statement correctly.
I'm using asp.net - I need to grab live data from a website. Here's an example:
[URL]
That website provides live data share prices. I need code to retrieve the share price from the website and display it in my own page. I know you can get share price widgets online but all I need is a simple way to retrieve the share price values.
In one of my web app's pages, the code behind needs to grab the UserId of the person logged in, so that it can then be inserted into a table which was added to the original aspnetdb.mdf. This table contains a column with a uniqueidentifier primary key which is in direct relationship with the aspnet_Users table; however I seem to have trouble retrieving the UserId. This table contains the additional information of a user which is not included in the provider, and it has a one-to-one relationship with aspnet_Users.
I hope this makes sense. I haven't written any code for it yet; I'm only at the thinking part of this stage. But my mind keeps going blank.(perhaps I need a break from the solution???).
I created a base Controller for the other Controllers to derrive from, and in that controller I overrode the OnActionExecuting method so that each time any Controller executes a method, I can run some code. In that code I added a value to ViewData, and in the Master View I want to either display certain items or not based on the value of the ViewData item set. The problem is, once I get to the Master View, the ViewData doesn't have anything in it. I am not sure what I'm doing wrong.
I am having a bit of trouble pulling from a stored procedure of mine. I want to return a string, for this example I tried to grab the mail address which is a varchar in my database.
DataTable siteParams = new DataTable(); using (SqlConnection con = new SqlConnection(conString)) { using (SqlCommand cmd = new SqlCommand("siteParametersGetAll", con)) using (SqlDataAdapter da = new SqlDataAdapter(cmd))
Now, I want to be able to grab certain rows without using 0,1,2,3
i'm currently learning .Net and i can get data out of a database and display in a listview. But how can i access data items in the code behind and format, change, concatenate...do whatever i want to them then display in the list view? Is it even possible?
[Code]....
Maybe an example of what i'm trying to do would be to concatenate a address from the dataset and in a variable sAddress and then attach sAddress to a label in the list view, or add to colums of the dataset together and then show in a label in the listview.
I am using the following code to select data which appears between 2 dates:
string query = "SELECT (name, date) FROM date where tableinfo BETWEEN @date1 AND date2";[code]....
Now the above code is working fine. The only problem is that the date in the date column of the gridview is not in the proper format. What can i do in order to change the format of the date in the gridview. If the format of the date is changed in the databse itself I may be able to use the above SQL query.
Let me try to explain my situation. I have a database table which contains, among other things, a boolean column called PermissionSlipRequired. I have a repeater on my page, and before each row in the database is shown in the repeater, I want to use my code behind to check the value of PermissionSlipRequired. Based on whether the value of PermissionSlipRequired is true or false, I want to change the text of a literal within the repeater. That's a real mouthful; hopefully some markup and code will clarify. Here's my repeater:
[Code]....
Here is what I've been able to come up with for my code behind. Needless to say, this code doesn't work.
[Code]....
As a former PHP user who is trying to migrate to asp.net.
I have a details view in asp.net which I am dynamically replacing some of the controls using code behind (e.g. converting some text boxes to dropdowns). My problem is that I am unsure how to bind these to the field from the database on postback. I.e. I am trying to find the code behind equivalent bind('currency');
I can populate the dropdown with the current value from the database but cannot find how to save a new value on updating the detailsview.
I have a repeater which has it's data bound in the code behing. I want it so that as each row is written out I can check the data and if a piece of information stored in the database exists, I can then do something (format the text in a different manner). So far I have this in my code behind: