putting images in a dataset. I'm developing a windows application that accesses an sql server database in another server, an sql server 2000 database. A table, tblProducts, contains a field called ProdImage with type VarChar. ProdImage contains the path of the image which is stored in the server's file system.
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I'm using itextsharp with a aspmvc project to create PDF versions of some of my pages. I have a very basic parser which takes simple html (plus some style info supplied seperately) and creates a pdf. When my parser encounts a table it loops over rows then cells, creating a PdfPCell for each cell. It then loops over child elements of the cell adding them to the PdfPCell. It's pretty basic but it's worked for me so far.
The problem is that I now have a table one column of which contains a number of icons, indicating different status for the row. When these images get added then end up one above the other in the pdf, instead of next to each other.
I create the image with
Dim I As iTextSharp.text.Image = Image.GetInstance(HttpContext.Current.Server.MapPath(El.Attributes("src").InnerText))
I have tried
I.Alignment = Image.TEXTWRAP Or Image.ALIGN_LEFT Or Image.ALIGN_MIDDLE
and adding a text chunk afterwards containing a space but it doesn't help. The only suggestion I have seen is to use I.SetAbsolutePosition(). I'd rather avoid absolute position but am prepared to try it - except I can't work out how to find the current X position to use?
i want to put my images saved as byte from the database to crystal reports.
View 3 RepliesI 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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i m trying to get a row count from a dataset and puttin them into buttons
below is my code.
ddt.Fill(dtd, "0")
Dim i As Short
Dim cnt = (dtd.Tables(0).Rows.Count - 1)
ReDim btn(cnt)
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I have a form with a Listview. I have not manually added columns through the gui so I need to do this too.I have a stored procedure which returns two sets of data. One is titled url and the other occurrences in he procedure.I have bound the results to a dataset. I am having problems taking that dataset and putting the results in the listview. Here is the code I have:
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It is not creating the column headers. It is not putting both results in the view. It is only putting the first column "url" It is not putting the next row on the next line, but placing it in the next column where the occurrences should be going. It is also not resizing the columns to match the data , but keeping at the size assigned (I assume) in the columns.add section.
I have an online database, and I have a program to insert information into database and to login using the information in the database, now I am wondering how to take something from a database and display it in a label, lets say if I log in with my username and password I want it to display my e-mail address from the database in a label, this is the code that I have for the register:
Imports MySql.Data.MySqlClient
Imports System.Data.SqlClient
Public Class Form2
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I want to do something like this:
Code:
'create a dataset and a table
Dim ds As New DataSet
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I've placed this on a VB2008 project but it's telling me adNumeric,adVarChar & adBoolean are not declared, I'm assuming I need to "DIM" them, but what as? plus I need each field to accept NULL values, how do I do this? Also I'd like to add a field for accepting images.
Code:
Dim cat As New Catalog()
Dim col1 As New ADOX.Column
Dim col2 As New ADOX.Column
Dim col3 As New ADOX.Column
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I am trying to develop a report that displays the result of a query that returns two tables. The first table is always a single row of values, the second should be a grid. I can get a report to display either independently, however it will not allow me put them both on the same report.
View 1 RepliesI have a dataset that I'm trying to loop through to be able to save any changes made to that dataset and update my database doing so. Is that possible? I've seen that it's possible to do it with datatables but not datasets. If so, can someone offer a starting point for me to learn with?
View 1 RepliesWhat is the best place (event/procedure) to use the newest record when navigating from record to record on a form.
For example, I want to do a calculation on 2 text boxes that are bound to a dataset. This calculation will be done each time a new record is navigated to.
Today i have been checking out the concept of datasets and i like the way they work except for a minor issue i have with it.The following code should get a databasetable and put it in a dataset and return that set to the user.[code]I submit the table name and it will select it, read it and fill the dataset with it, then return it. And it does exactly that once.If i try to re-read the same datatable it just returns the exact same dataset as the first time yet i am 100000% sure that i changed it .
View 1 Repliesi'm using vb 2008 express editor, and 3.5 compact sql, through my program, i make changes, like altering rows, deleting or adding new rows, to a dataset. i want, that when button 1 is pressed, all changes made to that dataset, are updated to my database. what is the line of code that does this? [Code]
View 1 RepliesI am using VS 2008, VB.NET and Windows XP r3.I am trying to use LINQ to DataSet in my app. In my test app, I can get it to work find. My test form has an OleDbDataAdapter, an OleDbConnection and a DataSet. It also has a DataGridView bound to the one table in the DataSet, a BindingSource and a Button.[code]
View 7 RepliesI'm having a problem with a database. I"m using these two functions to add and remove folders to the database:
Code:
Private Sub AddToFoldersTable(ByVal AddFolder As String)
If FoldersBindingSource.Find("Folderpath", AddFolder) = -1 Then
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Here is my code that parses an XML string to a datagridview:
Dim DS As New DataSet
DS.ReadXml(New StringReader(StringHTML))
DataGridView.DataSource = DS
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Child list for field Produits cannot be created.I'm sure it's something so simple you guys are chuckling...Can't wait to see what's the problem
What I mean is that when I make queries on a Parent Form. Child forms can also retrieves the datatable /datarows from its parent form.
View 3 RepliesWe are updating our SQL SERVER 2005 database to reflect the name of our new corporate masters and we need to change the values of the fields.
Once we do so, we will hit those fields with update queries, but right now, my group just needs a listing of the affected tables There are over 250 tables to search, is there a way to iterate through the tables?
I imagine I could search the datatables once I get them, so that part isn't a problem. I just need to know how to set up some code to peek in, record what needs to be changed, close it and move on to the next table.
I've done as much for a single table, but never a load like this.
I have an untyped DataSet: "ResultsData",which contains several tables: eg "EntryList_table".The Parent Form reads lines from a text file, parses the line, and distributes the necessary data to the corresponding data table.I then have several child forms which contain DataGridViews, each displaying the data in a unique format. All of these tables are Read only, and the DataGrid views only need to display the data attached. However, when I open the child forms, the data does not seem to update with each line read from the text file? As they are bound to the DataTables in 'ResultsData', the column headings appear correct, but will not populate the new data.I would like to have a 'Shared' DataSet that can be accessed by each child form (when activated), and will allow continuous modifications as the input lines are read.
View 6 RepliesI have a program that I designed that scans my music folder, gets the id3 information, and then in turn inserts the results into a dataset
Here is what I have:
MusicLibrary.sdf with a table called MusicLib
MusicLibraryDataSet
MusicLibBindingSource
MusicLibTableAdapter
DataGridView
So far here is where I am, if I open the database through the visual studio ide, I manually put in a few songs just for testing purposes. When I run the program the DataGridView displays the data I entered. However I can't seem to figure out how to actually programatically add songs to the database. This is what i did so far:
I execute this command for each song scanned:MusicLibraryDataSet.MusicLib.AddMusicLibRow("FileName", "Artist", "Album", "Title", "Track") Then when done execute this command:MusicLibraryDataSet.MusicLib.AcceptChanges()
After I do that how do I then insert these items into the sql database itself so that the next time I load up my program the info is there. I have plenty of sql experience, but am used to doing all this in asp.net, i've never quite gotten all the table adapters and stuff.
I'm writing an application to mimic a cash machine, I have a Form1 on which the user enters their PIN and chooses their card no. from a drop down box.The accountID is passed to Form2 and I know this is successfully seen by displaying it in a simple message box.A data adapter and dataset are used for this to the cards table.However, what I then require is within Form2 to retrieve the balance from that accountID in table Accounts, another data adapter and dataset have been created for this under Form2.I'm trying to get the balance into another variable, and I have written this as follows: [code]I would expect the result of this to be e.g. 100.00 but instead I am getting a response of "There is no row at position 0".
View 1 RepliesFirstly here's the code and i will explain my problem underneath. [code...]
Now as you can see I have a variable that holds a value member of the combo box Products which is the productID of the current product selected. Then it searchers through the products datatable and once its found the correct product or not it stores the answer in slectedproductrow. next I test to see if selected product row has found the product if it has i then see if the product has already been added to the order by seraching the the customer current order datatable if it hasn't it adds the current information to the order by using selected product row.
Now the problem i get is when i add the same product it still adds the information again as currentorderrow comes back as nothing everytime even if the product has been added before but if it was in the table which it should be it should skip that bit and just go to add the current qtys toghther.Also if i go to add a diffrent product it overwrites the the other one. So i can't store the customer order. Its like i can't store more than one row. By the way I have a datagrid and can see the product get over wrriten.
We have a VB.NET (aspx) website with a login first page. Once the user has logged in and is authenticated they are taken to a single page with a Menu Bar at the top and a report viewer control underneath. When the user has logged in the report viewer is initially populated by a dynamic menu (a menu of links to other reports depending on each user's permission).
Now, on some reports that the user access from the main menu, they like to export the data. The nicely formatted reports export nicely to PDF but these same reports look awful when you export to excel. Further more what is required from the excel version is no formatting and also to include extra columns of data that are available form the dataset but not from the rendered report (for use with importing these expoerts into other systems).
Is it possible to extract the data that is generated from the dataset that renders the report?What I would like to do is obtain this data and create my own excel export option (of which I will put into the page Menu bar at the top of the screen). It is important to just grab the data that is generated because different data is available depending on the parameters the user has chosen.
I have the following code:
public sub PrettyRows()
dim ds as dataset = report.dataset1
dim GroupName as string = ""
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The Protected Overrides Sub OnInit() is comparable to the load event in VB.NET.
I am utilizing this event to call my custom sub PrettyRows. This sub will iterate the rows in my dataset and change the first column in each row so that an entry only appears once, This is being utilized to identify what group the row belongs to. The rows are sorted by group and I only wish to display the group name once and I am removing all other references to the group name.
i have a situation where I need to search a table for a specific record that matches an ID number the user will specify. I know 2 methods to accomplish this. The first would involve writing some VB.net code that would call a TSQL statement and return the value through the return parameter. The second method would involve creating a dataset and populating it with a select statement.
View 2 RepliesK, I'm not sure which forum this question goes in, so I am putting it here.Here's my problem.I have a customer file [CSV] I am importing to SQL. I am using JET to read it into a dataset. I am using a schema.ini file to define columns, because I have one column with up to 1000 characters in it... so I have to define it as a Memo field so it won't truncate at 255 characters.
View 7 RepliesI am trying to read an entire database in to a dataset. I have this so far..
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I am writing a school project in VB2005 and am trying to hook up a second combo box that gets its information of what to display from the first combo box. My application is where a student takes a "test" but they can choose what instructor they want in the first combo box. From there, they choose from a test of what each instructor offers in the second combo box. As of right now, my first combo box works great and my second combo box has nothing in it. Just a note, when I debug, it shows my iUserID value as 0.
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I have a datagrid that I use to display data from a SQL 2000 table. I am trying to write back any changes the user makes to the datagrid data back to the original table but don't know the proper method to do this.
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