Asp.net - Creating A Custom Gridview?
Apr 10, 2012
I would like to create an order form for my ASP.net page (I included an example image below). However I don't know how to approach this. I'm assuming the best method would be a gridview but it would involve two levels of grouping. Other requirements would be be to accept a quantity and then calculate the total price. Can anyone point me to some good books or websites that explain creating custom grid views like this (or maybe a better method than using gridview, I'm open to whatever). I consider myself to be an intermediate programmer in asp.net.
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Apr 1, 2011
If I have the following ASP.NET code (it's not complete - obviously there's a lot missing, but none of it matters):
<asp:GridView>
<Columns>
<asp:TemplateField>
<ItemTemplate>
[code]....
How can I bind the GridView so that one row is equivalent to one item in my MyListOfObjects list, and so that the data will populate and persist across page loads or postbacks? I've never done custom databinding like this before, so a full explanation would be very helpful. All the tutorials I've come across so far only talk about using GridViews directly with Database query results, and that's not what I need.
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Oct 12, 2009
I am using VB.net for coding.
I am having GridView Control in my application.[code]...
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Apr 16, 2011
I have a table (applicants) and using a GridView various individuals will be making changes to the values in this GridView. I've created another table (history) which I would like to use to log these changes. Right now I have this to capture the changes:
[Code]...
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Mar 17, 2012
I am a bit lost in concept how to implement what i want to do. I have a gridview, a checkboxlist. I bind the gridview on the page_load. Everytime user choose a checkboxlist, the gridview rebind as well. I have something like this now. This is not the actual code. Thanks so much.
[Code]....
So what do i put here in order to allow paging ? basically, I have 2 datatables in the above example. In the actual code, I have about 5 datatables with 4 checkboxlists. I can't use Datasource control. I need to do it in codebehind as all code already exists.
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Jun 23, 2009
I create a GridView. It has default three columsn. cant find the way to delete a colmn, i want only 1 column in it.how to do this from design view?
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Nov 21, 2011
I need to create a gridview which fills its column with data from an excel sheet and for each column in the gridview, the header should contain a drop down list with listitems like telephone, name, price which the user will select and set as the header for the particular column. I imported data into gridview but I am not able to create a drop down list in the gridview. If I try to create a dropdownlist in the designer page, it is just creating the dropdownlist in the gridview header but not populating the data. So How can I create a dropdownlist in the header of the gridview while populating its column data from excel sheet.
The code I used to populate data into gridview is
Dim con As String = ""
Select Case Extension
Case ".xls"
'Excel 97-03
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Feb 10, 2012
I have a DevExpress GridView whose cells are painted with a random color based on some condition. Now each color has a meaning and I want to show it as a legend. Number of colors used for each condition may vary.How can I do this. I'm using DevExpress 2009 Vol2, and .Net framework - 2.0 and WinForms?
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Apr 12, 2012
I have a grid view that is shown on the click of a button and takes the input of a text box. This works great, however i would like this gridview to be editable.The code for my button is
GridView2.Visible = True
lblEnterName.Text = ""
If txtLoanName.Text = "" Then
[code]....
I know the datasource needs update,delete queries etc, but not sure how to add these as the datasource is created when the button is pressed.
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Sep 30, 2010
Whenever a row is selected in my GridView, I want to take the ID field of my gridview's dataset and form a unique URL with it (use a ?id=1234 parameter). In the Page_Load event I have the following code:
TextBox1.Text = Request.Url.AbsoluteUri.ToString & "?id=" & _
GridView1.SelectedIndex.ToString & Environment.NewLine
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Apr 3, 2012
i need to create a pop up window whn the user clicks the button link of the gridview
the gridview is a project details table and the button field should giv the abstract of each project.
on clicking the abstract of a particular project,that abstract should be displayed as a pop up.
is it possible to do it thru de popup control exteder of the ajax contrl toolkit?
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Dec 15, 2009
Is this possible? I am trying to create my own "X" and "minimize" buttons on my form -- the only way that I can currently think to do it is by making my form have no border, and creating a 'fake' menu bar using labels and buttons for minimizing and maximizing. The goal here is to be able to have custom icons for maximize, close, etc that may not match the Windows default scheme.
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Apr 15, 2010
want to create a custom control of the button such as the button will be a bit enlarged and with a different colour.A custom control is a class that either inherits the Control class directly or some other control.So Iadded class named class1.vb and added this line:Inherits System.Windows.Forms.Button
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Nov 16, 2010
Iam developing a OS using wince Kernel.It supports .net framework 2.0.
so i succesfully extracted the kernel and i booted my mips processor,Now i can see a black screen running wince kernel.
Now i want to create a form that should look like a desktop in vb.net and should have desktop Properties.cool huh?
what are the properties of the desktop.
Property-1
The Deskstop should be attached at last.
For Example:when a application is opened it should have the capability to open the application on the top of the Desktop.
and it should be locked on the background.
Property-2
If i close a application in my kernel the application is closed but the image stays still because there is no desktop background to repaint itself.so i want to create a form with the two properties above Mentioned.
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May 17, 2011
I'm having a bit of trouble with my project here... and Google isn't helping very much. To put it briefly, I'm currently making a sticky note program (one fairly similar to Sticky Notes, for those of you familiar with Windows Vista or 7). It's relatively simple, as the "note" itself is basically a glorified Rich Text Box.
My problem is this: I obviously want to allow some for some customization with the font, however I don't want to use a standard full-on Dialog Box. So I designed a small form with 2 Combo Boxes--one for font and the other for size--and 2 buttons, "OK" and "Cancel". What I'm attempting to do is program this form (named dlgFont) to more or less be recognized as a Font Dialog Box. I've got some of it figured out I think, but I can't seem to put the pieces together in a way that actually works.In the code for my main form, I have this within the Class... stuff:
Friend WithEvents dlgFont As System.Windows.Forms.FontDialog
As for the Command Button that pulls up the dialog box itself, well, it's actually a Context Menu Strip Item... I'm not really sure what to put. So far I've only tried this:
dlgFont.ShowDialog
And for the Apply event, I've got the generic stuff:
Private Sub dlgFont_Apply(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dlgFont.Apply
If dlgFont.ShowDialog = Windows.Forms.DialogResult.OK Then
Me.Font = dlgFont.Font
End If
End Sub
That's all I have for the main form. This is what dlgFont looks like: 'A limited-ability font dialog box.
Imports System.Windows.Forms
Friend Class dlgFont
[code]....
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Feb 5, 2011
i want to make a custom file type like "abc.xyz" which should have all the attribs of a directory like
moving other files and folders to it, open, close, delete, create new, etc... in vb.net or c#.net
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Sep 28, 2009
I am working on a project that has some events already created and working. One of these events is called SelectedIndexChanged Event. I am using it for one of my Subs in my frmNewInspection Class, and I am trying to use it for a second Sub and it says that "Event SelectedIndexChanged Cannot Be Found".
The event is created here in a class called LabelComoBox
Private Sub tctlInspection_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles tctlInspection.SelectedIndexChanged
'MsgBox("Index: " & tctlInspection.SelectedIndex.ToString)
[Code] .....
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Jul 20, 2009
I want to create a folder " c:imagebox " when the user runs my setup. I tried this in " Add special folder --> Custom folder " then a folder appears i renamed it to ImageBox and in default location i typed " C: " and set its property to always create but when i tested the setup on xp an vista i did not created any folder.
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Jan 1, 2011
Here are essential excerpts for the code creating the class and the page using it:
Imports System.Collections.ObjectModel
Public Class Test (Of T as xyz)
Inherits Collection (Of T)
[code].....
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Jan 11, 2010
I am wondering if I can extend a component (e.g a button ) in vb the same way I can in java which enables you to modify the component for your specific requirement or create a new one from scratch.
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Dec 2, 2009
I am new to VB 2008 having spent most of my time in 2003. What is the recommendation for the best place to get a primer on creating custom controls in VB.NET. I prefer to use VB directly and not the WPF.
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Aug 6, 2010
I have a form that is populated with specific data for each user. The user chooses this data themselves.I plan on saving this data in the application settings or via xml serialization.What I want to do, is allow users to generate a unique code for that data so that they can supply this code to others and all they will have to do is copy and paste it into their client and that data will populate for them.I could just allow users to trade XML files, but I want it to be easier than that.The form is basically setup this way;
Picture - Data 1, Data 2, Data 3, Data 4
Picture - Data 1, Data 2, Data 3, Data 4
The pictures correlate to pictures that are numbered anywhere from 0-600. The data can be any integer value from 0 - 200.
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Dec 16, 2009
I'm running several different automated processes and when I get done with them, I show the results in a form with various controls.
In this form, I use Panels, Labels, TextBoxes, and TreeViews, and ListViews to display a wealth of information.
When the automation part is done, I want to be able to log this info and save that log file on the User's PC.
I thought it would be best to make a custom file extension and then hash it with MD5.
I'm pretty sure I can get all of that done. The problem is that I'm not sure how I would load that info back into the application.
Since the log files will appear on a seperate form, I can't just load the data back into the original controls.
Would it be best to create a blank template of controls and then load the data into those controls? Or is there a way to save content "as is", controls and all?
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Aug 23, 2010
I got this whole thing pretty well down (it's actually quite easy), but I've seen custom controls created where you can click that little arrow on the top-right corner and add things or change things about it.
How exactly is this done? I'd Google it (which is why you don't see me post here too often) but I really don't know how to describe it.
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Feb 28, 2012
I am creating a gridview and need to gather the data from various functions that return a type of IEnumerable. I've created gridviews using a dataset as a datasource, but how does one use multiple data sources(of IEnumerable) to populate one gridview? Like how do you combine all that into one dataset?
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Jun 9, 2010
Here at my company we have an Access application that allows users to create documents based on invoices that are in Great Plains, an accounting program. Documents such as invoices, packing lists, export documentation, etc., etc.This application is very old and very hard to maintain so we're doing a rewrite and I've chosen this project to be my first Visual Basic .NET project.Basically what the application is going to do is allow users to do the following:
Pull up invoice information and then add some secondary information such as comments and the like Choose which documents they want to print out Open the documents and then allow the user to edit the documents That last part is the tricky part. The users right now create these documents out of Access and print to a PDF and then edit the PDF with comments that can be specific to the document and customer. If they didn't have to do that, then I could just used canned reports or something.
What I am thinking of doing is creating Word templates with text boxes and inside those text boxes adding addressable bookmarks. When the user goes to print the documents, open Word, populate the bookmarks from the database (SQL Server) and then that will let them draw text boxes and fill them with whatever they want before they print the documents and then they can save them.
Here's the code I worked out to do this (of course the final result will be much more complex):
Public Const wdPageBreak = 7
Dim oWord As Word.Application
Dim oDoc As Word.Document
[code]....
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May 13, 2011
How would I create my custom Role class based on that autogenerated class? I have read a few articles on the net but I am still lost. Can someone please show me how to do this, and what I must import(using visual basic). I want to add some validation to the string property where Role1 cannot be more than 50 characters.
Autogenerated class
[Code]...
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Mar 24, 2012
I am trying to create error messages to display on a form. I added a label that is made visible if there is error.Currently if the database name is wrong the error message displays, however if I alter the connection string; example: If I misspell Server, the error label does not display and my application crashes when I try to click a control.How do I detect and display the error label, when there is no connection or a part of the string is misspelled or missing? Is this even possible? [code]
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Mar 4, 2011
Is there a way in Visual Basic 2008/Framework 2.0 to create and save a 8bits bitmap(Format8bppIndexed) to a .GIF file using custom colors(about 30) instead of the standard web colors?
If not, is there a way to convert a 24bits or 32bits bitmap to a 8bits bitmap using custom colors?
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Jan 30, 2010
as in VB2008 the documentation suggest creating a module or class, then selecting 'Export Template' on the File menu. Regrettably my file menu does not show the item 'Export Template' in my installation of Visual Studio 2010 Beta 2.
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