i have two datasets and i need to compare these two datasets such that if ID does not exist in one table then i need to write insert Query else update query. For Ex: Id in One dataset ID in second Dataset 1 1 2 2 3 4 I need to insert ID 3 to sec...
I am working in vb.net and i have a simple requirement. I have added a MDB file to a dataset and it contains 21 tables. I have a datagridview and a combobox on my form. I was able to get the combobox populated with the table names available in the dataset by iterating through dataset.tables. Now i want to add the feature where the us...
RS2005 doesn't like this syntax. What's wrong with it? How do reference multiple tables in one textbox? =sum(Fields!onHand.Value, "Table1") / sum(Fields!QTY.Value,"Table1") ...
First I have to say, that I am a newby using LINQ. Actually I never used before, but I am having a task where I need to filter a DataTable, using values that will come from a List. So I will like to know if it's possible in LINQ to query on a Datatable using values in the List as Filter values. Some one can give me some hint's Thank you...
In Windows Forms (.NET 2.0, Visual Studio 2005 SP1) : I have a typed DataSet, with a column which type is System.Boolean, which is nullable and which default value is DBNull. I have a Form, containing a CheckBox control that I want to bind to the prior column value. I have tried to bind the Checked property to the column via the design...
I have the following code, repeated on each Form, as part of the Update process. When the page loads the BLL returns a DataSet, say _personInfo = ConnectBLL.BLL.Person.GetPerson(personID); I store that DataSet in a Form level variable which I then use to check against for changes during the Validate/Update process. I pass a row at ...
I am looking to produce a site similar to a venue "What's on" site. The plan is that the venues can register an account to the site and then through their own 'admin' section upload/post all their latest events that are on. I am hoping that very large number of venues will sign up and each have a large number of events thus producing a ...
I've got a dataset that I need a lookup field for. Problem is, this dataset's structure is defined by the result of a query. I can't add the field as a TFieldDef before setting .Active = true; because it gets overwritten, and I can't add it after running the query because you can't alter the structure of an open dataset. There has to ...
Am currently working on a Tree control, and being my first time to delve into this, I need your inputs and advice. My tree control is retrieving data from a .NET web service. My .NET webservice returns a string which is parsed from a dataset via the command DataSet.GetXML method. Function MyFunc() as String 'Populate the dataset her...
I have a dataset which I am populating via an Oracle SQL query: SELECT col_id, col_desc FROM table_data; Then I generate the dataset, via the function Dim ds as New DataSet OracleDataAdapter.Fill(ds) Now, when I get the XML of the generated dataset via: Dim strXML as String strXML = ds.GetXML() When I read/display the string, i...
Hello, I have a VB.Net function which executes a Oracle Stored Proc and returns a dataset. Below is a list of sample records OrderID OrderDetail Qty Date Supplier Price 1 Books 10 10-Aug-08 ABC Inc 100.00 1 Pens 20 10-Aug-08 ABC Inc 300.00 2 Keys 1 20-Aug-09 Blue c...
I was wondering if we retrieve a dataset in C# from SQL database .then can we query on it ...
Hello, I connected an sql database in c# and now trying to put the contents into a dataset. How will I be able to do that? My code is: string constr = "Data Source=ECEE;Initial Catalog=Internet_Bankaciligi;User ID=sa"; SqlConnection conn = new SqlConnection(constr); SqlDataAdapter mySqlDataAdapter = new SqlDataAdapt...
The heading pretty much explains what I would like to achieve, but here is an example to elaborate further: Given the following table: CREATE TABLE [CustSchema].[TestTable]( [Desc] [varchar](50) NOT NULL ) ON [PRIMARY] When I load this table into a DataTable, and then spit it out again using DataSet.WriteXml(), I get the followin...
How can I be notified when a calculated column value changes ? ...
i have a sql database, and have created a dataset for a sample table in it. The dataset is HotelDataSet2 and data table adapter to insert to it is Various_itemsTableAdapter. MsgBox(HotelDataSet2.various_items.Rows.Count) Various_itemsTableAdapter.Insert(Item_nameTextBox.Text, itemcode, PackingTextBox.Text, UomTextBox.Text, PriceTextB...
A C# program I am working on will need to export data to one or more tables of data. Some columns of these tables will be related to one another, such that the ID column of of one table may be reference by the cell of another table. This seems like the common case for setting up a DataRelation. But I'm trying to understand how these rela...
I have a main class which creates and populates a DataSet and an instance of this class is then passed to sub controls of my application by reference. I want to use this dataset to databind to components, in this case, a listbox. This is for a windows forms application. Heres what I'm trying: channelTypesLB.DataBindings.Add("Text", syn...
If I have a DataTable and want to create a new row I first call DataTable.NewRow() which returns a DataRow. This row then has the schema of the Table, and I can set the value of each field in the row. At this point does the Table "know" about the Row, or does that only happen after I call DataTable.Rows.Add(DataRow row)? If I call D**at...
I wanted to know what would be the easiest / best way to get a dataset contained within a datagridview into a sql database. Points to note: The data comes from a CSV file that is imported into the application. The user then has the option to modify cell data They then press a button and hopefully upload to sql table It is given that th...