Forms Data Controls :: Linq Query To Fill Datagrid?
Mar 14, 2010
'm not sure if this is the right forum, but I couldnt find one for linq related questions.I have the following problem. I have four tables, One with users, one with projects, one with the users and the projects they are in (joinProjectTable) and on table where the users can fill in there worked hours for a certain project. These hours are filled in on a daily base. Now every month there is going to be created a report on the workedHours table so there is visible which user has entered how many hours for a certain project. On this report there is gonna be a billing for the company where for the hours are worked. This is the easy part, the hard part is the following.
companies also want to have a list of users that didn't entered any hours for that particular month for a particular project. So I have to write a linq query that would look in the joinprojecttable to see which users are joined to which projects, and than with that join it should look if that particular combination (user+project) is in anyway entered in the workedhourstable for that particular month. If not this has to be shown in the datagrid, for every user that isnt in the workedhourstable for that month. So it should be a certain NOT query, but I can't seem to figure it out.does anyone have any idea to accomplisch this in Linq2Sql? I'm using VB instead of C#.
I am trying to run a linq query but I need the result as a datatable as I am using that to store records from different queries in the same viewstate object.The 2 versions below compile, but return an empty set. The exact error is "Value cannot be null.Parameter name: source". (and yes I have checked there is data):
MyDatabaseDataContext db = new MyDatabaseDataContext(conn); IEnumerable<DataRow> queryProjects = (from DataRow p in db.STREAM_PROJECTs.AsEnumerable()
I'm new with programming. I have a GridView that have the specific user data. When the user log in I retrieve the data for that specific user. All I need is; How do I make the gridview get the data of the logged user using a datatable that has a query. Just bind it with the datatable.This is some code that other programmer made, I continue his work.
successfully querying an excel file the problem is when im about to display the data im worried that even the rows from excel that do not have actual data is being pulled is there any way that i can query only the rows that contain data
I am pulling data from an excel file but the column Amount doesn't want to format to currency. i think it's my SQL statement but I am not sure.
[Code]....
I can take out the where the SQL statement begins "ALTER TABLE [Sheet1$] ALTER COLUMN Amount CURRENCY" and it works fine but I need the Amount column to be in currency format.
currently i am working on wcf...i am adding data through textborex till here is ok. but when i am retriving it from database into grid..but the grid is getting blank...
i am using this query..--page - svc.cs
public List<AddressBook> BindData() { DataClasses1DataContext dc = new DataClasses1DataContext();[code]....
I am VB.Net Windows Application Developer Now i am going an ASP.Net Application. So, the Problem is that in Windows Application i Code this Project like given Below Actually i am Using SQL Server as DataBase and Store Procedure as Query.Becuase i had tried to control the ASP.Net Data Grid with Loop and i Failed to Control it with this method
Private Sub btn_Ok_Click(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles btn_Ok.Click Fill_dataset("Sel_MovNames", "Tbl_MovNames", Convert.toint32(cmb_MovID.SelectedValue)) [code]...
I've got a gridview that will allow clients to edit options they've already entered on another page. The gridview has three radio buttons in it each with a value of 1,2,3. The option value in the dataset is 1,2 or 3 respectively. I would like to have the radiobutton with the corresponding value selected in the gridview so they can see what they previously chose and will then be able to edit, if they wish.
I have an ASP.Net website, that uses a MySQL database. First of all, because the Connect/Net of MySQL doesn't install on PC (reason unknown, no error, it just doesn't work) I'm using ODBC for the connection. I've written some nice wrapper classes for using the database, and it's all working ok.
But now I'm adding a little Silverlight application to my website (first thing I'm making with WCF/Silverlight, without actually reading any tutorial, so let's hope for the best).
Now this application won't be anything fancy, it's only for the administrators, to read the logs, and change some configuration settings, etc, nothing fancy at all. But what it has to do is retrieve data from the services.
What I've done is a setup a service reference, and it works like a blessing, but now I'm trying to read the logs from the service, and I'm getting in trouble, because my class was never built to serialize to XML, first issue. And secondly I wouldn't know how to bind the retrieved data at the client to the datagrid.
I'm going to parse the recordset at the server so that I'll be sending a class containing an array of columns, and a multi-dimensional with the data to the client, now that's not much of a problem, I'm just mentioning it so that you can either improve or keep in mind what the data will look like.
My question: How would I bind that retrieved data to a plain <sdk:DataGrid>?
I have datagrid with paging enabled that can have 10 rows per page. Also I have DataTable with 16 rows. I want to fill the datagrid dynamically with 'for' loop to go over all the DataTable and fill the DataGrid.I understand that there is a problem when the counter will hit row 11. Do I need to change the page of the datagrid when counter will be 11? Because it doesnt let me add more than 10 rows in the datagrid.
I know how to handle the filtering of the grid (create a criteria and set to rowfilter of the dataview) But, I dont know how to get the value of the column of the selected row.
I have this ListView that has a Drop Down List.Everything works fine (I think/hope) except that the drop down list are not showing its result correctly.This is the code.
Front-End [Code]....
The code behind consist of the page_load and the ItemDataBound [Code]....
I have Datagrid , i want to clcik on row and get data in textbox , but my textbox is FreeTextBox control,i tried to use javascript but work for asp.net control not working for freetext box control, how i can capture this code is sample code but it work for asp.net control but not working for my freetextbox
Simply put... I want to duplicate the example found at this link, in VB.net rather than C#.
[URL]
I would like the selectedvalue of the dropdown to display additional data base on its selection in multiple text boxes.
I have tried using the DropDownList OnSelectedIndexChanged property, within a DataGrid EditiItemTemplate, but I cannot retrieve data from the selection. (AutoPostBack is "True"). I can however use a button onclick event to fire a "prre-defined" selection value.
I have 2 datagrid (using .net 1.1). I need to access column of second grid ( i need to make a column of second grid as disabled) when i click "Cancel" link button in First Grid. How can this be done?
I have "Order" object with Columns Ticket,OTP and CustomerName etc.Intially on DataGrid, I'm binding Ticket only , when user clicks on "Column Chooser" button, another windows appears to pickup CustomerName,OTP columns to add specified column dynamically on Datagrid. Environment : Asp.net ,C# with Object Data source
Public Class Order { publc void Order() { } public string Ticket { get { return this.strTicket; } set { this.strTicket = value; } } public string OtpNumber { get { return this.strOtpNumber; } set { this.strOtpNumber = value; } } public string CustomerName { get { return this.strCustomer; } set { this.strCustomer = value; } } } }
