HTMl Table To Datatable Or Dataset
Nov 4, 2009asn1.htm (14.26K)
Number of downloads: 248Private Sub Command1_Click()
Dim HTML As HTMLDocument
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Import Dataset / Datatable Into Sql Table?
Sep 15, 2010I've been fighting with this problem for 2 weeks now and haven't been able to figure it out to parse data from a text file to a datatable using SteamReader. I am trying to import the data like it is displayed in the datatable into SQL Server 2005, I have tried using sqldataadapter approach, the standard approach, ADO.NET approach. [code]...
View 8 RepliesInsert Changed Data From One DataTable Into A Database Table In A Different DataSet
Oct 26, 2011I want to track changes in an application. So I've made a copy of the main table in that application, and am accessing both tables in the application using two separate datasets.
My plan was to use the HasChanges method of the main DataSet to get changed rows and then insert those into the copy table. When I run the code I get an error:
A first chance exception of type 'System.InvalidCastException' occurred in MyApp.exe
Unable to cast object of type 'MainDataTable' to type 'MainAuditDataTable'.
Here's the code:
If Me.DataSet3.HasChanges Then
' 'look for each row that has changes, not new rows
' 'insert that row into the auditing table
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Sql Server - Updating SqlClient Dataset Table With OracleClient Dataset Table?
May 5, 2012I use a dbDataAdapter to populate a DataTable from an unlinked oracle database.I have a dbDataAdapter that I want to insert rows into an SQL Server table using SQLCommandBuilder.I have been trying all day to update the DataTable that references the SQL Server table with the data from the Oracle DataTable so that I can insert the rows.
View 2 RepliesDataSet Editor - Allows The User To Edit A DataTable In A Strongly-typed DataSet
Mar 15, 2010When the user clicks an "Edit" button on my form, I want a box to come up which allows the user to edit a DataTable in a strongly-typed DataSet. What's the best way to do this?
View 2 RepliesIDE :: Dataset Code Behind Datatable.ColumnChanging Event Firing / But Dataset.HasChanges Property Not True
Jan 28, 2010I have code running in the Datatable.ColumnChanging event in my dataset. This dataset underlies a form and conventional drag/drop controls are in place for data entry.when the event triggers and runs, I am running code in the form that checks the dataset.HasChanges property. It is showing False. But this is immediately after the ColumnChanging event has been triggered.Okay, I see by others posts and MSDN that .HasChanges will only be true after moving off the row with the changed column. I have also noted lots of discussion about the advanced binding property of DataSourceUpdate Mode, but that does not address this issue.I guess I can do this by checking the state of the row for the binding source. Just seems odd that the event behind the dataset can be triggered and that does not change the dataset.HasChanges property.
View 3 RepliesAsp.net - Copy Data From Datatable To Dataset.datatable?
Oct 31, 2010how to copy data from datatable to table in dataset i ry this but its readonly property
ds.datatable1=newdt.copy
[2003] Update Unable To Find TableMapping['Table'] Or DataTable 'Table'?
Sep 26, 2008An unhandled exception of type 'System.InvalidOperationException' occurred in system.windows.forms.dllerror in line: dbAdp.Update(dbDset) in btnSave_Click, (elseif editflag = true) blockdescription: Update unable to find TableMapping['Table'] or DataTable 'Table'I was also wondering if I could simply use the ExecuteNonQuery for the delete statement, but since I've placed my data in a datarow, I'm not sure if i can actually use it. Any thoughts on this? Btw, this is my first time using a datarow, and I've recently been studying how to use ADO.net.
dr = dbDset.Tables(0).Rows(CurIndex)
dr.Delete()
dbAdp.Update(dbDset.Tables("addresses"))
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HTML Table Displays Random Cell Values Outside Of Table
Sep 23, 2009I am using a string builder to set up an html table row by row so that it can be emailed. I currently gather my information from the database using a data reader and while dataReader.read, I use stringbuilder.Append to add each cell value to the table.The issue is that after about 200 rows, the html breaks and displays a cell value above the table in the email. I have tried changing the cell padding, but this was not successful.
View 2 RepliesPrint HTML Table In .NET With Table Header At Start Of Each Page?
Jan 27, 2011I would like to print an HTML file that I am generating myself, but I want the pages to have the same table header at the start of each page. I think the best options to print an HTML file is the webbrowser control? but this won't give the table header at the start of each page (and I will have to contend with the ugly file://c:empfile.htm at the top of each page etc)
View 1 RepliesAdd A Master Table To A Dataset Where The Detail Table Is Already Linked To A Windows Form?
Jul 2, 2009I have a large form that is set up from master-detail datasets in Visual Studio 2008.I havene master table with a large amount of detail tables. Several of the detail tables also have detail tables linked.Now I need to add a master table that sits on top of my existing master table making it a detail table.
View 7 RepliesUpdate A Single Table Of A DataSet Using A TableAdapter Without Hard-coding The Table Name?
Nov 13, 2009I have a project which contains a large number of lookup tables, and I have all of these lookup tables represented in a single typed DataSet, which contains TableAdapters for each lookup. I've designed an editor for these lookup tables, which should allow editing of one of these at a time. My front-end is written in VB and WinForms, the back-end is a SOAP web service; I can successfully pass the changes to the DataSet back to the web service, but can't find a way to use a TableAdapter to update the single table that has been changed.
What I'm trying to do is instantiate the appropriate TableAdapter for the updated DataTable by sending the name of the table back to the web service along with the DataSet, then referring to the TableAdapter with a dynamic name. The normal way to instantiate a TableAdapter is this:
Dim ta As New dsLookupsTableAdapters.tlkpMyTableTableAdapter
What I'd like to do is this, but of course it doesn't work:
strTableName = "tlkpMyTable"
Dim ta As New dsLookupsTableAdapters(strTableName & "TableAdapter")
Is there any way to achieve this, or am I taking the wrong approach altogether? My other alternative is to write separate code for each table, which I'd prefer to avoid!
Update Dataset Table With Mysql Database Table?
May 22, 2011How can I update local dataset with mysql database without making duplicates. Assuming I set some column in mysql as primary key, which has unique string.
adapter.fill will just add duplicates, but adapter.clear before that is not an option.
So I want to update if the key column is the same with mysql data and if there is option for ignore adding new row.
.net - Remove Any HTML Within THE <TABLE> And </TABLE> Tags?
Dec 22, 2010I have a html text file and I am trying to remove any HTML tags in tables, i.e. remove any HTML within THE <TABLE> and </TABLE> tags.
However, what's really weird is that the regex that I use, (?<=<table((?!</table).)*)<(?!/table)[^>]+>, works perfectly in PowerGREP or EditPad Pro, however, when applied in vb.NET (or Expresso) to the VERY SAME text, it does NOT work! I just use a simple replace method: newString = Regex.Replace(oldString, "(?<=<table((?!</table).)*)<(?!/table)[^>]+>", string.Empty, RegexOptions.IgnoreCase)?
Below is the example text:
texttexetext
<TABLE>
<TAG1>
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C# - .NET Dataset Design - Have A Dataset For Each Table?
Jul 23, 2010I have some concern about designing Datasets. I was told that it would be good to have a dataset for each table for maintenance purpose. Because frequent change in database tables is expected, having one dataset including every tables would be pain to make the corresponding change in the application.
Q. is it good approach to have a dataset for each table ( I would end up having 30~40 datasets for each db table using Stored procedure) ?
I have a separate project for commonly used datasets. each project include "dataset project" as a reference, and use it by including needed dataset into Forms, classes, etc.
Q. Does this approach makes the whole system to be slower? If I have a set of datasets as a separate project, it would be beneficial, since It will be easier to make a change (I only need to make modification in one place)
Any Way To Add DataTable To DataSet?
Jul 29, 2010I have build a datatable in vb
dim Booking_table as datatable
Is it possible to add this datatable to a dataset or do I have to build in acces2007 and import in VB.
DataSet / DataTable - How To Do Add Row
Nov 4, 2010I have a strongly typed dataset and datatable and I am trying to do an add row.
Dim newDT As New hdar.AccessRequestsDataTable
Dim newRow As hdar.AccessRequestsRow = newDT.NewAccessRequestsRow
newRow.Number = nextNumber
newRow.RequestedByID = Me.cboUser.SelectedValue
newRow.RequestedOn = Date.Now.ToShortDateString
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Get ID From DataTable With Dataset?
Apr 27, 2012i am using Microsoft.Office.Interop.Excel to read the data from excel,
--Students_Table--
id_S | Name | Sex
12 john M
[code]....
-----the table where uploaded excel file saved--
id_u | id-S | Scor |
1 12 30
i want to get the Id_S from "John"(excel file), i tried using the dataset with query
select Id_P from Students_Table where (Name =: Name)
and then check fillBy & GetBy my vb code :
Dim ta As New Students_TableAdapters.StudentsTableAdapter
Dim DataID as Integer
if ta.fillBy(ExlRead.Value) <> 0 then
[code]....
i use breakpoint to check those and i found an error message
"ORA-01722: invalid number"
(i'm using oracle database)if i pointed my cursor to the ta.fillBy it shows Public Overridalle Overload Function FillBy(Name as string) as decimal?
Filtering Dataset - Dataset (WW1Dataset) With One Data Table(WW1) (database Used In An Access Database)
Feb 1, 2010I have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
View 1 RepliesDataset And Inside Of It Theres Two(2) Datatable?
Jul 27, 2010I have a dataset and inside of it theres two(2) datatable. Is it possible to do this kind of query.
"SELECT DATATABLE1.NAME FROM DATATABLE1 INNER JOIN DATATABLE2 ON DATATABLE1.ID = DATATABLE2.ID"
.net - DataTable Already Belongs To Another DataSet
Jan 12, 2012This error is occuring while adding one datatable from a dataset to another ."DataTable already belongs to another DataSet."
dsformulaValues.Tables.Add(m_DataAccess.GetFormulaValues(dv.ToTable.DefaultView.ToTable(False, strSelectedCols)).Tables(0))
Putting A Datatable Into A Dataset?
Jun 16, 2010I am trying to put a datatable into a dateset, which I then export to a CSV file. I am getting this error
DataTable already belongs to another DataSet. on the following line dsExport.Tables.Add(dtExport)
VB
Using dtExport As DataTable = DirectCast(dgvSafetyGlasses.DataSource, DataTable)
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Xmldocument To Datatable Or Dataset?
Mar 16, 2009I am ably to load a XML file (via a filepath) to a datatable. See code below.However, I'd like to be able to load a in-memory XML document to a datatable.
Code: Public Function XmlToDataTable(ByRef filePath As String) As DataTable
Dim ds As New DataSet Dim dt As New DataTable ds.ReadXml(filePath) dt = ds.Tables(0).Copy()
Return dt
End Function
.net - Automated DataSet/DataTable Instead Of SQLCommands?
Dec 26, 2011I used to do all the database logic with SqlCommand and the Methodes ExecuteReader and ExecuteNonReader and never used something like DataSet or Datatable.
Dim dbcon As Data.Common.DbConnection
Dim cmdselect = dbcon.CreateCommand()
cmdselect.CommandText = "SELECT * FROM users WHERE id = 1"[code]...
This is sometimes hard to administrate. So I would like to use a more efficent way. May thought was to Query a DataTable, make changes to it and then call .AcceptChanges and all changes where wrote back to the Database. But this seems not to be the way it works?The method .Update requires that i bring with my own update command, if i have to do that myself, why using the datatable, dataset... anyway?How do you write your DB Backend?
With SQLCommands arrays and variables?
With DataSet, DataTable?
With a VisualStudio genereated template?
With Linq?
C# - How To Get Distinct Values From DataTable In DataSet
Dec 23, 2011I am using strongly typed dataset and have many tables in that. The problem is now I want to filter data from
GetData()
function which has a query like
select * from table_name
How can I filter a particular table and distinct values from it. Also if I try to filter it return all column but rest have null values except the one I asked, so I cannot assign it as a datasource to a datagrid or combobox. How can I do this..
Convert A List To Dataset Or Datatable?
Jun 5, 2011I need to convert bindiangsource.datasource (which is a list) to dataset or datatable.
View 1 RepliesCreate A DataView From The Dataset / Datatable?
Jan 2, 2010How to create a dataview from a datatable?
What is the basic use of the created dataview?
Dataset - Print Out Rows From A Datatable In .net?
Dec 31, 2011I am new to vb.net and I am trying to query a database and print out the records in the row to the console window. I got it to work, but I have a feeling that there is a more concise way to do this. One thing that I am sure is wrong is that I had to convert the dataset to a datatable to be able to retrieve the values. Is that correct? Could you take a look at the code below (especially the for loop) and let me know what I can improve upon?
[Code]...
Get The Instance Of One Datatable In DataSet By Tablename?
Aug 2, 2009this code:
If Not DataSet1.Tables.Contains("Table0") Then
DataSet1.Tables.Add(New DataTable("Table0"))
End If
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Load Xml String Into Dataset/datatable?
Mar 27, 2009I have returned xml data in a variable and need to loop through the returned xml and pull certain data from select nodes.
I was thinking the best way would be to load into a dataset (or datatable) and loop through that.
I also have the xmlschema. What's the best way to code this?
I thought I could do something like so but it gives me the following error: DataTable 'newdt' does not match to any DataTable in source.
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