C# - ItextSharp: Table Disappears When Added To Paragraph With KeepTogether=true
Jan 28, 2011
I am exporting some data to a PDF and I have been using iTextSharp with a lot of success, but I just hit a wall.
I have a group of information I need to keep on a single page. This information includes a handful of other Paragraph objects and tables. I can add 3 Paragraphs to another parent Paragraph and set that parent's KeepTogether property to true and everything works great.
When I add a PdfPTable to the Paragraph with KeepTogether set to true, the table disappears. No Exceptions or error messages, the table just disappears.
Any clue as to what is happening? Is there a work around? Should I be coding differently, like is there a better parent control than Paragraph to keep text and tables together on one page?
I have a dropdown on page, a place holder and a save button on my form.Now, I am creating a textbox on selectedIndexChanged event of dropdown list and adding it to placeholder. And on button click I want to access the control, but on click event, I find the textbox as null. Here is my code
Dim objDatabase As New database objDatabase.OpenSQLConnection() Dim objAdapter As SqlDataAdapter Dim objDataset As New DataSet Dim objAdapter1 As SqlDataAdapter Dim objDataset1 As New DataSet Dim objAdapter2 As SqlDataAdapter Dim objDataset2 As New DataSet
i am using above code to generate dynamicaly textbox into grid view. I have 3 fix coloumns from database which i fetch at start of code.
Then i assigned it to datatable. in datatable according to Listbox item count i added more coloumn as per listbox items count.
then that datatable i i gave as datasourse to gridview. Now i inserted dynamicaly textbox to gridview in respective coloumn.
But after refreshing page all textboxes disappears....
Im creating a table dynamically in my codebehind to display some statistics. The table is in a usercontrol. When the page first loads, its created and displayed correctly. If I do something that generates a postback, the table subsequently disappears, this is because its created inside a !IsPostback. How can i ensure that the table, once its been generated, stays visble on the page ? I dont want to generate it each time the page loads as it involves a lot of calculations on the database which will slow the pageload down.
What I am doing is to generate a pdf booklet from database. I need go generate a content table with page numbers. E.g there are two chapters with page number like:
The text "Chapter 1 ----- " is normal paragraph. But the page number "3" has to be produced using PdfTemplate because it can only be known later. But the pdfTemplate is absolutely positioned. How can I know where to position the PdfTemplate? Am I right on this ? How could I figure this out or should I use other methods?
I am getting a NullReferenceException when the following code is executed. I have also noticed that the nested table appeared on a new page when I added in the code that wrote cells to the main table. It doesn't occur if I take out the two loops that write cells to the main table.
<%@ Page Title="" Language="C#" MasterPageFile="~/Main.master" %> <%@ Import Namespace="iTextSharp.text" %> <%@ Import Namespace="iTextSharp.text.pdf" %> <%@ Import Namespace="System.IO" %> <script runat="server"> protected void Page_Load(object sender, EventArgs e) { Document doc = new Document(PageSize.LETTER); // Here is some stuff needed to put the pdf into the users response stream
And if so is there an example in vb .net? I want to add a linq result to the cache and then allow a mvc post to search the cache for better performance...every way I implement it I receive an object not referenced error...
I'm confused, maybe I shouldn't be doing it this way but the mvc post will be checking up to 2000 records and it would seem best not to have it querying the database everytime.
How to return count of true/ false in a column of a table. I have a table in sql containing 5 columns with bollean type. Now I have to return the number of trues and falses in each column and display on my frontend.
my table has already 5 rows...after pressing addow, rows are added dynamically to another table... i need to save the data of all the rows(5+newly added) in the database...
I would like to be able to send an email notification if a website user inserts a new record in a table. This will be a relatively rare occurrence so it would be very useful to have the notification as opposed to having my users check my summary page that lists all the IDs that have a record in this table. I googled but I must not be hitting on the right keywords or phrase to find the answer to this question. 1) letting me know if this is possible (I'm version ASP.NET 2.0 and using VB with a SQL Server database) and/or 2) pointing me in the right direction to find out how to do it if it is possible.
I have a table in which I have the box amount.How would the table have been added to the + sign.- 10.00 OK, it works.+10.00 - The signs "+" indicatesShows only 10.00 - I do not want to.I would like to table the recorded information +10.00
i need to create 2 temporary tables.The records inserted into the 2nd table is the same as that from table1.
Now, i am inserting some other records into table 2.what i need is, to retrieve the count of the recently added records into table2.How to achieve this?
Actually the controls are in a user control on an aspx page that also uses a master page (if that matters)
I defined a table in the skin file with TableHeaderRow, HeaderTableCell. I added some formatting to these entries. The table defined in the control is not being skinned by this definition. If I add a "CssClass" on the TableHeaderCell in the control, the formatting works fine. If I add the CssClass to the skin it doesn't work.
I creating 3 tier arch wpp in VS 2010. I added the BusinessAccessLayer refernce in Presentation Layer. and I created DataAccessLayer[DAL] and ORM [DBModel.DBML]. when i try to create the instance for the Table in presenation layer[default.aspx], The Table name is not shown.After adding the DataAccessLayer refernce in the presentation layer, the table name[MM_User] instance are shown.Is it the right method [Adding the DAL refernce in Presenation Layer]? If not, whats the solution for for accessing the instance of the tables[MM_User].Is it related to the Creating the DataContextWrapper class in DAL?
I have a dropdown list inside gridview which has a object data source and I am adding the list items as true, false which stores in the database table as a bit value. Even if i am addin the values 1 and 0 to the drop down list, its throwing the below error'grdDebug' has a SelectedValue which is invalid because it does not exist in the list of items.Parameter name: value My code to add the dropdownlist with list items are as below
It took me a little while to figure this out, but the AllowPaging="true" on the FormView seems to be the culprit. I don't have much experience paging from a FormView, but for this requirement the customers wants this kind of UI.I have a FormView with DefaultMode="Edit", which is bound to an EntityDataSource. One of the entity's properties, "ExternalID", determines whether some of the other properties in the entity are read-only. For example, if IsExternal==null, the FirstName, LastName, and Email fields should be rendered as TextBoxes. If IsExternal!=null, the 3 properties should be rendered in Label controls.
