i want to learn how to use combo Box step by step. Start from begining .anyone can direct me or give me good website on this topic?
Hi Experts.
How do I get the selected value out of a combo box and into a variable? I puzzled, because I don't know what the index is.
var := ComboBox1.???;
Thanks much.
how to change or upload new icon to the diagram below
Delphi 7 running in WindowsXP
I have been reading about USB communication and it is fairly complex. I would like to know if there is a component that I can add to Delphi to resolves the comp...
I want to be able to get and set the selected row in a TDBGrid. I have dgMultiSelect set to False. I thought about using SelecteRows, but the help files say that SelectedRows is only meaningfu...
We're using Delphi 2007 TWebBrowser Component and finding that it is very difficult to clear the cache once it is loaded. Even by changing the target file name it still reloads the original fi...
Hi Experts,
I have derived an new component from TCustomCombobox and has overriden the Create method.
Something I believe is wrong with the way I override this method because when placing ...
I am trying the Delphi 2007 Richedit demo to see how the tRichEdit component works. When I start to enter text, then hit bold to start bolding from that point on, the entire text converts to b...
I'm working with a project in CodeGear Delphi 2009. My goal is to get access to a TWAIN unit by using Gustavo Daud's DelphiTwain component (http://delphitwain.sourceforge.net). The problem is,...
I am trying to write a delphi dll and a delphi client that will load the dll and have the dll call a method in the client. so far i have my client and dll are able to share data via a memory m...
Hi.
I am using a set of libraries like this:
ThirdPartyPackages.dpk
MyVCLs.dpk -> using ThirdPartyPackages
MyDnaPkg.dpk -> using ThirdPartyPackages
All packages contains visual compon...
Hi,
I use sql 2008 and delphi6. I retrieve data using ADOdataset and then display in DBGRID.
Problem is that data is in format yyyy-mm-dd and I want opposite dd-mm-yyyy.
I know you can ...
I am using a cxGrid, with the default configuration with cxGridViewerDBTableView1. I need to find the number of records being displayed, and send it in code to a label. The number of records h...
Hi All,
I would like to create a new TTimer component but overwrite the OnTimer() event.
The overwritten event should return some parameters.
Can someone please help me with this?
Thanks!
Hi
I'm trying to create GUI controls like buttons, comboboxes, radiobuttons in a pre-existing Excel file using the delphi classes TExcelApplication , TExcelWorkbook and TExcelWorksheet.
...
Dear Experts,
I have installed Delphi 7 Enterprise on MS Vista.
So far all is ok but when trying to install my JEDI components I received a message which states:
"Delph/BCB version not in...
Hello,
hope to get here a help into a delphi problem I have on Vista. I use ini files in my app to store the data. This was no problem until Vista and UAC. Now this data is stored in a virtua...
Hi,
Trying to write a verysimple component. I want to have a panel within a panel.
So my derived T..Panel creates a "sub panel" when it is created and sets its parent to be the original p...
I'm using a TTreeView to show a list of unexpected files remianing after an uninstall process. I've defined a TImageList containing a small folder icon (ImageIndex 1) and a small file icon (Im...
Hi, I am making an Image viewer component in Delphi 7 that displays only bmp's. I have placed all of my sub components in a TPanel, including
an Image Box
a Load File Button
An exit (cl...
I'm trying to add an object of class TCategoryPanel to a CategoryPanelGroup at runtime. I'd like to copy an existing CategoryPanel, which already belongs to the group (and was created statical...
Hello experts.
I have a TStringGrid, and I want it to select the whole row when a cell is clicked. How would I do this?
Running Delphi 7 with Zeos and Potgresql, occurs "Range check error" on Zeos, on zdbcCache.pas, on line
FBuffer.Columns[FColumnOffsets[ColumnIndex - 1]] := 0;
It's weird, cause...
Hi, I'm a Delphi developer and I can't find the right component for this problem. I've searched thru the net - there are thousands of filelist descendants that display files from a SPECIFIC fo...
Hi
I am struggling with a very silly error
I using a adodataset with with a dbgrid , for a very simple mysql table
I have a very simple commandtext which is
'select * from customer_table...
