Asp.net - Create A GridView From A Class?
Feb 28, 2012
I have recently been working with creating a GridView from codebehind to make it more flexible so that I can eventually have it created based on user specifications.Now I'm exploring classes, and I thought it would be cool to create a GridView class so that whenever I need to make a GridView I can just pass the class my specifications instead of having the same code re-written on each page's codebehind.Here's how I'm currently making my GridView with codebehind. Any idea how I can change this to create the GridView with a class?
.aspx page:
<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False"
EmptyDataText="There are no data records to display." AllowPaging="True"
CssClass="GridViewStyle" GridLines="None" Width="100%">
[code]...
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Nov 27, 2010
Okay, in the past I've been able to do a Qsl Select statement and bind the data to a grid, do what I what in the DataBound and make everything look pretty but I'm trying something a little different. I've been all over the web searching for help and I've really found nothing which makes me wonder if the way I'm doing it is the wrong way since it appears no one else is doing it this way. Here's basically what I have. I have a structure called Player that looks like this:
[Code]...
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Apr 24, 2011
Suppose a click event is fired and a particular gridview datasource is set in the code behind page by retrieving a data table from a business logic class.
So programmatically speaking, what is the main difference between the two set of code listed below.
CODE:
I guess my main question is, what is the purpose of creating a new instance of an object in the above scenario?
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Oct 1, 2008
I've been creating short test apps repeatedly to try to understand some of the concepts in VB.NET.For the most part it has been illuminating.I read Bucky's .NET knowlegebase tutorial on passing objects as parameters to newly created forms. He shows how to create a new class that inherits from the base form class and define a New() method with parameters Extending the concept I thought about doing the same thing with a form that was created at design-time (In this case Form2).
[Code]...
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Apr 27, 2011
I want to read a number of items from a file and then associate each of those items with a new button at run-time, so that when the user clicks one of the buttons I can display some information about that item.Can I use a LIST to manage these buttons and items? Can I create a new class and have each list item of that class, such as 'btnID', 'btnText', etc... ?
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Mar 17, 2010
[code]Index was out of range. Must be non-negative and less than the size of the collection.Parameter name: index
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Feb 10, 2012
I would like to add a property to the BoundField control that will change rendering as show below.
<td>My Bound Text></td>
Should become
<td><span>My Bound Text</span></td>
This is all I have so far...
Public Class BoundField
Inherits System.Web.UI.WebControls.BoundField
Dim _ellipse As Boolean[code]....
I have the same problem as this poster, however I am using a .net gridview and would like render my html to use the fix offered here.Using CSS to create table cells of a specific width with no word wrapping. EDIT I think I may be going about this all wrong, maybe you don't change the rendering by extending the BoundField, but rather add the properties to the boundfield then change the way the gridview renders its fields based on the properties of those fields.Which also leads me down the path of control adapters,
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Feb 23, 2011
Can we create objects of a C# class from a VB.NET class and vice versa?
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Jun 11, 2012
I want to create a class that will "search" for something. Basically I load up the "search item" when the class is created and inside the class is logic to do the "search". The result of this logic will be more "searches" that I want to start. How can I have the logic in the class create another instance of the class itself?
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Nov 28, 2010
I want to create a class is it where I can do...
[code]...
How do I do this? Do i create a class and create a instance of CarData? but how do I add Color and Year etc to it?
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Feb 27, 2009
I use an sql server in which i have a table called crm_users. What I want to do is to create a textbox where i would type a name or some letters and when I press "enter" a pop up list will apear with the possible users found in the sql table and then select the one that I am looking for. What I dont know how to do is, how to transfer the value from the texbox , into the popup page, and then how to create a gridview with the results...
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Sep 17, 2009
Here is what I am doing. I create two buttons in a header row of a gridview that i created. The buttons are +page and -page. When -page is hit I remove the paging and all the data goes down the page and -page disappears and +page is there.
Here comes my issue When I hit +page I must be double postbacking because one row of my data disappears. I will provide the code below. What can i do to fix this??
[Code]...
So as you can see, when one or the other is hit I set a textbox to some value then i do a partial postback to my Gridview which is in that Updatepanel.
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Sep 10, 2008
I'm in the process of trying to create a class that will allow me to create windows shortcut; Im using the following PDF file that gives me the shortcut file structure.
Ive been able to successfully load a shortcut file and parse its Lnk File Structure but now Im on the Shell Item ID List structure but I cannot find the Structure of the ITEMIDLIST anywhere
Furthermore I know I could use the Windows script object, but this is a dependency Im trying to avoid if I can, hence writing my own Shortcut class.
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Feb 27, 2011
I'm try to create a class has been create by main class only by protect sub New but how do I create it ?
Public MustInherit Class Rune
Protected MustOverride Function Create() As Rune
Public Shared Function Factory(Of T As Rune)() As T
'I can't use "T As {Rune, New}" because Sub New isn't Public
'Return (New T).Create
End Function
End Class
[Code]...
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May 11, 2011
Create A Loop To Retrieve A Column Of Data From Gridview
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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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May 16, 2012
I have the following function that returns only the 1st row of data and puts it in a nice table. My knowledge in this area is limited in that I don't know how to create the table to return multiple rows. Can you show me how to change this to return all rows, no matter how many there are? my sql select statement may return 0 rows or many rows.
<System.Web.Services.WebMethodAttribute(), System.Web.Script.Services.ScriptMethodAttribute()> _
Public Shared Function GetDynamicContent(contextKey As String) As String
[Code]....
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Nov 22, 2011
I need to create a page that will display gridview based on user wants (programmatic ally).Basically I have a list of columns then the user will choose for the list. I need also to have sorting function
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Jan 31, 2011
I want to create a custom class that has inside an array of another custom class (see my code below) but when the programm runs is crashes. Why? What is the right expression???? Plz help I'm a newbie in VB.net.....
Public Class ctrarray
Public nameclass As String
Public ctrlindex(glvar_spaces) As ctrlindexclass
End Class
[code]....
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Jan 13, 2012
I want to create a helper class(.dll) but I 'm not sure how to create and when to create, what's its use and so on.
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Sep 15, 2011
I want to share this tutorial for others so that we also an idea what they are suggest. This simple line of codes and Screenshot determines the invalid type required in textbox. I created my own class to control the invalid typing of data required in textbox. Example, the textbox required only a data that accepts all string input and if the user's prompt to input the numeric value, invalid message display that the field required only text input. Here is the site, just click
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Sep 24, 2009
I used to do my coding without classes until the last few months and my best friends was my functions now when i started working with the .NET language I can understand how important it is to use classes, I can appreciate its values and and its many pluses.BUT I'm still not sure when it's time to create class for a certain task or start creating bunch of functions to handle my target.
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Mar 19, 2012
I want to create a class in vb.net that make the connection to database.Also I need the way to use this class inside forms. I need a code example of both the class and the form call
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Feb 18, 2012
I have this code which i got from another forum.[code]...
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Feb 24, 2010
I am working on an ASP.Net 3.5 solution that I did not originally build. I added a class file named Incident.vb to the App_Code folder like I always do.But in my code behind of a web page, I usually create an instance of a class like:
Dim oIncident as New Incident
But after I type "New", normally I would see my class file he intellisense but I do not. So it does not seem to be able to find Incident.vb. I have not seen this behavior before. Trust me, my class is correct. I have created many class files like this.[code]...
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Jul 23, 2010
I'm going to show you an example of what i mean[code]...
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May 10, 2009
Is it possible to create a class programmatically?
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Sep 12, 2009
I am trying to create a Class that is COM accessible.The problem I am having is that I cannot have any arguments in the class constructor Sub New.If I do than I get the error:"MSB3214 does not contain any types that can be registered for COM Interop"I can however afterwards use regasm ComDotNet.dll /tlb to create the tlb file.
However when I try to use the class in VB (after adding the reference) withDim test As ComDotNet.HelloDotNetSet test = New ComDotNet.HelloDotNet("Hello")I get an error.
If I remove the argument from Sub New() everything works fine.
Here is the code:
Code:Imports SystemImports System.Runtime.InteropServices
Public Interface IHelloDotNet Function GetAge() As Integer Sub SayHello()End Interface
[Code].......
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Jul 28, 2011
For extra credit I need to create a project for my class. I am here asking what is some of your ideas on a project I already did a calculator and I don't know what else to do one one
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Jun 21, 2010
Create a project that contains a Pet class. Each object will contain pet name, animal type, breed and color. The form should contain text boxes to enter the information for the pets. A button or menu item should display the pet information on a separate form. Hint: Use a ReadOnly property on the input form to pass the object to the second form.
What I have done so far is create a new class with the name Pet and have instantiated each object with readonly property. I have also created another form where the information entered by the user will be displayed. Guess I kinda need to know what would be the next step? And I want to ensure what I have done so far is correct.
[Code]...
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