I try to disable a tabpages in .net but it doesn't work properly , if try to do this Me.TabControl1.TabPages(1).Enabled = False it let me enter to de tabpages .
Bhagabat Dayal Dash Software Developer Qlogix Solutions(India)
I am trying to display an usercontrol(has several panels one on top of the other panel) on tabpage. I am using below code to achieve this.
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If I am developing a windows forms application in Visual Studio 2008, does the end user that installs the application need dotnet 2.0, 3.0, 3.5? Only winforms, no web (except it calls web services).
View 4 RepliesI want to allow the user to enable or disable a textbox by clicking either a button (enable) or the reverse. (disable) if the user clicks the enable button the textbox should receive the focus.
View 4 RepliesI want to display a message box to inform a user of a requirement. In this case, the requirement is to insert a USB flash drive. This is easy enough:
MessageBox.Show(blah, blah, blah)
This message box will only have an OK button. What I need to happen is this:The OK button should not be available (enabled) until after the flash drive has had a chance to initialize. We will say this takes 2-4 seconds. So how to I keep the OK button disabled during this time and then enable after the time has passed?
I have a GUI that allows a user to add tabpages to a tab control. Everytime the user adds a tab, a user control is placed on the new tab. The user control has a background worker on it, as well as several other controls. My question is this: Can I access the backgroundworker specific to a tabpage? In other words, can I tell the program to use the backgroundworker found on tab index 0 to run a process, and then tell the backgroundworker on tab index 1 to run a different process?
View 1 RepliesI have a application with a tabcontrol. I dynamically open new tabs on which there is a custom control which is made of a graph and a datagridview with data. I fill this from a csv file. when I open few tabs like this my application memory goes over 120 MB. When I remove the tab I call the dispose on the custom control and a dispose for the tab. But the memory stays where it was (120+MB). It goes down only if I minimize the program. And when I show it again its around 10MB.
View 3 RepliesHow can I edit the time on my form. I have a one tabpage Schedule on which I want to set time according to user's choice. (I know how to display current time). If current time is 5.50.55 PM then user can set anything for eg. 6.45.12 AM according to he want to schedule.
View 2 RepliesI am using System.Windows.Forms.TabPage to store an entire TabPage for later use in My.Settings. Here is a brief description of the application.
I have a TabControl that has 3 tabs. One for user input, another tab for equipment settings, and then a final tab for Oven settings. On the user input tab, if the user de-selects the checkbox for Oven, the oven tab is saved to My.Settings and hidden.
I can then run the application without oven control. After running, lets say the user would like to re-run, this time with the oven. They go back to the input tab and re-select the Oven checkbox. However, the Oven tab doesn't re-appear. When stepping through the code, the is nothing stored in My.Settings for the oven tab page. Why not?
Also, I can open the application, and check, then uncheck the oven checkbox and the tab is hidden, then returns. I can do this all day. However, after running the tab will not return.
How to enable a Active Directory User Account By using vb.net CodeSHYAM
View 7 RepliesMy freeware program launches 50 freeware programs and provides a guide for PC maintenance and health. As mentioned in another post, my program was reviewed on Sofpedia. One thing the Reviewer criticized was the fact that my program requires the user to install these 50 programs in the default locations (usually C:Program Filesx). The reviewer thinks it would be best if the user can install to any location he/she desires and my program be able to point to the proper location when launching the application.
View 10 RepliesI want to have a dialog box like SaveFileDialog that will enable the user to choose a folder name and the save it. How I can achieve this?
View 5 RepliesI have a usercontrol that contains a datagridview and a toolstrip. When creating a windows form that contains 2 of the mentioned usercontrol i gate for example c1 and c2 where both contains for sure the datagridview and the toolstrip hving the same control name for example G and t. in my case i want to apply the security on each form, i do this by reading the access of each control inside the windows form and if the control on the form was a user control then i dont consider it as one entity instead but as a grid alone and a toolstrip alone in order to be able to apply its security accordingly. but in ma case, if i want to disable the first grid and enable the 2nd i wont be able to do so since both grids have the same name. is there any solution for the above.
View 2 RepliesI am wondering if there is any code guide to teach me how to enable the user to draw as many buttons as possible on the windows form and be able to move and resize the buttons on the GUI and also tie the buttons to the timer to toggle the button colour when ever a condition is true
View 5 RepliesI wanted to know how to enable the user to copy and paste the text in a message box, how can I do this?
View 8 RepliesI 'd like to enable the user to apply a custom filter to a System.Data.DataTable.At the moment I have a very simple function like this:
Dim result = dataTable.Select(txtUserInput.Text)
With the filtered results I'd like to do further operations(e.g. Database Update/Delete).Is an sql injection protection needed or is the "Select" function secure?
//Edit:Can the "select" function be abused to manipulate any data in the datatable, execute code, ...? If the only danger is that this function can return to much/to less data there is no problem. But if the data in the dataset gets corrupted it's a real problem.
I have a database (acces) with 3 tables Table one has Id nr 1000 table 2 1000000 table 3 Id nr 1000000000 First table makes Id nr from 1001 to 1999. On Id nr 1001 i have multiple ID nr on the seccond table 10010000 to 10019999 and on the second table ID nr 10010001 i have multiple ID nr on the third table. This will last a while but the tables will fill up. Now i work with the Max value to find the highest ID number and add one to it.
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I am trying to enable the user the ability to select a folder and the folders music files populate a list box. I want two list boxes on the page, one with all the contents of the folder and then the other one for files selected from the first box. I have no clue on how to do this at all.
View 4 Repliesi want to create a dropdown list which depend on each other. as example. the 1st dropdown list will let the user to select the type between sector or subsector.
select type: 1) sector
2) subsector
if the user choose sector, the sector value will be appear in the dropdownlist
select sector: 1)technology
2) trading
3) industrial
but if the user choose subsector, the subsector value will be appear in the dropdownlist
select subsector: 1) computer
2) utilities
3) consumer
i try to use the hide code but it turns out to be error. i think because of the data overloading.
I Try so many times to change TabPage Size and Form Size when I shif from One TabPAge to another, This because every TabPAge consist of defrent volume of control which need to enlarge and reduce the size. But I couldn't make it.
View 2 RepliesI want to create multiple dataset depend on situation. dataset number may vary each time.how can we create multiple dataset
View 4 RepliesAt runtime, I have a collection of rows (Row class). Each of them consist of column values, represented by instances of a ColumnValue class. The name of the columns are determined at runtime, and are in a separate columns descriptor collection (Column class).I want to create a DataGridView that displays all Row instances. Of course, the DataGridView's columns shall be exactly those specified by the Column instances in the containing collection.But since DataGridView's columns can fetch their values from a list item's public properties only, and I cannot easily define such a property at runtime, I cannot use DataGridView to display the tabular data.
' Classes for table structure representation
Public Class TColumn ' describes my columns
Public Name As String
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how to make my progress bar work depend on the program processes. if my the process take a long time to end, the progress bar will work the same else if the process work for a short time, it work the same also.i've made this code so far
'for the timer tick sub
ProgressBar2.Value = ProgressBar2.Value + 1
If ProgressBar2.Value = ProgressBar2.Maximum Then
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I have Logon and Detail forms. In Detail form combobox populated by Employee table. I would like, when user logon and open Detail form the combobox will automatically display name of employee who logon.
View 8 RepliesFor using you will need this two dll, I'm sure everybody knows that, but its probably the best.
[URLs] (this example use itextsharp-4.1.6 )
My Question
THe following Code will make a Graph, create a Bitmap, and start Adobe-Reade to present the Graph inside. The whole code works fine. I only have trouble, when I use this line:
Dim Doc As New iTextSharp.text.Document (iTextSharp.text.PageSize.A4.Rotate())
Instead of this line:
Dim Doc As New iTextSharp.text.Document(iTextSharp.text.PageSize.A4, 10, 10, 10, 10)
The quality of of the whole Picture is not good then. Eventhough when I change width and hight for the Rectangle. Then I tried to change the Bitmap width and hight, but in that case nothing happends? Any way, to handle the quality for using why nothing happens, when I change height or width in this line:
Dim Doc As New iTextSharp.text.Document(iTextSharp.text.PageSize.A4, 10, 10, 10, 10)
Imports ZedGraph
Imports iTextSharp
Imports iTextSharp.text.pdf
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winforms .net 3.5 Ultrawingrid 9.2 In my subclass of Ultrawingrid.Ultragrid :
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This works fine. But when the grid is dropped on a TabControl tabpage, the ctrl-tab looks very different to the sub above. e.keycode is seen as controlkey {17} I realize that by default cntrl-Tab moves between tabpages. I need to override this behavior. My thought is I probably need a subclass of the tabControl which will pass the keycombo through just as the form does but I confess to being clueless as to how to accomplish that. I tried to override the onkeydown of a tabcontrol subclass and just issuing a return and not and base call to onkeydown if the ctrl-tab combo was pressed but it seemed to see the e.keycode as controlkey as well.
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I have a requirement to run the following commands on the command prompt using VB.Net
CODE:
How to code on this...
I am writing a C# Windows application program and I'm using an add-on for creating chart in it,but when I run this program on another windows which has .net framework but not that package it does not work and give me exception.I want to know how can I correct this problem even with setup file?and if the answer is setup file then how should I do that?
View 1 RepliesBasically I am trying to enable the user the ability to select a folder and the folders music files populate a list box. I want two list boxes on the page, one with all the contents of the folder and then the other one for files selected from the first box. I have no clue on how to do this at all...
View 4 Repliesdocuments that are required for a project. Such as:e.g: What sort of document I have create at the requirement analysis phase...etc I need to know all the documents that are required from start to end of the software project.
What's the part that MSF (Microsoft Solutions framework) plays?If we need to use MSF, what sort of documents that are required from it?