Get Identity Column Value in C# 'Dataset'--Access DataBase
Hi I want to retrieve identity column value after running Insert or Update (using Access DB in C#). How can I do it? i use a Typed dataset to fill and update... ...
dataset
Validate control manually in WPF
Hi, Here is the situation: I have a dataset bound to a WPF window. The dataset implements the IDataErrorInfo, so when a value is changed in the window, a validation occurs for the specific property changed. During validation, I may find out there is another control in the window I need to validate. I know only the field name in the Da...
VB dataset issue
The idea was to create a message box that stores my user name, message, and post datetime into the database as messages are sent. Soon came to realize, what if the user changed his name? So I decided to use the user id (icn) to identify the message poster instead. However, my chunk of codes keep giving me the same error. Says that ther...
databinding a Dataset to a listbox...Datatemplate needs to display from multiple columns
Hi, I was trying to figure this out for quite some time.I want a Databind a listbox with a Dataset.Simple as it can get.But my problem is that i want my datatemplate to display Columns from two tables,in the dataset.I have tried many samles..but everything i found just gives the dataset as datacontext and gives a single table as itemsour...
Convert dataset to observable collection
hi, I was trying to bind a dataset to a listbox..certainly because i want to display a couple of tables information in a datatemplate..But this seems not possible and i will have to convert it to an observable collection.But how can i do it.My bl returns dataset objects.How can i convert this to observablecollection..? Is there any way s...
How to get more than 1 line in Crystal Report by using DataSet ?
OpenConnect(); OleDbDataAdapter olda = new OleDbDataAdapter("Select * from RECORD where LIC_PLATE='GE 320'", con); DataSet dataset = new DataSet(); olda.Fill(dataset); cr1.SetDataSource(dataset.Tables[0]); crystalReportViewer1.ReportSource = cr1; crystalReportViewer1.Refresh(); ...
Visual Studio 2008 InvalidArgument error when saving a dataset?
Hi, I am using Visual Studio 2008 .Net Framework 3.5 SP1 and get the following error when I save (ctrl-s) a dataset .xsd file within the VS IDE: InvalidArgument=Value of '-2147483648' is not valid for 'RowPosition' Is this somethng anyone has come across? The way I have fixed this in the past is to remove the DataTable and Table...
Dataset won't commit to database
Hi there... I am a DB programming noob. I need to populate a DB from textbox fields but when I try to then commit it to the DB, I go and view the database and all I see is Nulls... nothing is being saved... please help.. thanks private void btnSubmit_Click(object sender, EventArgs e) { TradesDataSet.TradesRow newTradesRow ...
how to use c# dataset in java
i am using webservice.i am getting data to java in the form of C# dataset how to retrive values from dataset in java please help it's very urgent ...
The SelectCommand property has not been initialized before calling 'Fill'
The SelectCommand property has not been initialized before calling 'Fill' I am getting this error when running StoredProcedure.ExecuteDataSet(); Error happens in DbDataProvider.cs at line 163 ...
Dataset / Datatable question - how do I ensure I see updates to my DataTable in real time across parts of my code?
Hi, I'm setting up a Dataset and DataTable in one section of my code. I'm having trouble understanding why update data in one area of my code why I don't see this in another area. I'm doing my best to use the same DataTable as far as I can tell (see code below). What is the minimum I have to do if I want to see new rows that I add in...
Howto merge DataTable without copies?
Hello I Have two databases generated from the same SQL code and two datasets created from this databases. I want to create one dataset from this two datasets, and i thought i could do this like this: public void MergeGatunek() { DB1.DataSetGatunek.Tables[0].Merge(DB2.DataSetGatunek.Tables[0], true); DataSetGatune...
lost with DataSets and merging in C#
NEWEST EDIT!!! PLEASE... I have been through many permutations of this code. I am attempting to take some certain related records from a database (SQL server) and export to XML (which seems to work!), and take them to a disconnected copy of that database, and import them to that database, merging them by primary key (updating if the k...
how to return single row using TableAdapter
Hi I am currently using TableAdapter that returns a dataTable, which is fine to use when result table should have more than one row like : MyItemsDataTable myItemsDataTable = Adapter.GetAllItems(); but if we need only one row as a result, say an item, which has a particular ID MyItemsDataSet.MyItemRow itemRow = Adapter.GetItemByID...
ActionScrpt: Library implementing a 'set' datatype?
Has anyone implemented a Set class in ActionScript? Specifically, a Set which is similar to Python's set implementation (unordered, unique, O(1) membership, etc). I'd like to be able to iterate over it using for each, perform operations like union and intersection and get a list of all the contained items… Which would all be possible to...
ado.net dirty records in dataset
Hello, I'll try to explain. I want to track dirty records in my dataset row that is bound to controls on window (wpf). It works fine. Lets say i begin to edit some textbox that is bound to dataTable in that dataSet. After i add one character to textbox, dataset is marked dirty. But if I delete that character again ( restore original va...
Reading info inside a node of an XML using dataset
<cat number="35"> <eye>brown</eye> <tail>long</tail> </cat> <dog number="35"> <eye>green</eye> <tail>short</tail> </dog> I've loaded an XML like this into a dataset, and to access info i'm just using this: ds.Tables(cat).Rows(0)(eye) //returns brown but i'd like to get the cat's number, how do i access this information using one...
Identifying a certain node in XML
<enviNFe versao="1.10"> <idLote>000000000000094</idLote> <NFe> <infNFe Id="NFe35090254517628000198550010000000011870030005" versao="1.10"> <!-- ... content ... --> </infNFe> <Signature xmlns="http://www.w3.org/2000/09/xmldsig#"> <!-- ... content ... --> </Signature> </NFe> </enviNFe> I have this XML fi...
Joining DataSets in ReportingServices
I have a SSRS report. This report has two data sets from two different data sources. I need to do a conceptual join on these two data sets. For example, assume I have the following datasets A and B. DataSet A Data Source is SqlServer P SELECT user_id, user_name from users DataSet B Data Source is SqlServer Q SELECT change_id, user_i...
Exception occuring while using T Field<T> in my code.
I am getting InvalidCastException when i am trying to use this code. I am not been able to resolve how to use Field. Plz help me out DataTable _Transaction= new DataTable(); float NetAmount=0; //Records inserted into Table for (int i = 0; i < _Transaction.Rows.Count; i++) { NetAmount += _Transaction.Rows[...