Use Custom Control In A Datagridview?
Aug 5, 2009
I've been working with this for a while now and have finally come to you for help. I have a custom control that inherits from a label and I'm trying to use it in a datagridview. I have followed this example and have tried to adapt it to my needs.
The custom control in this case is a label with a boolean type property named Value. When value is true, the label.text = "ON" and the color is red. When value is false, the label.text = "off" and the color is transparent. This is the effect I need to show in the dgv.
I have attached my developing project and would like you to take a look if you can. The project has a single form with the dgv, the custom control and a button on it. When the button is clicked the value of the custom control toggles. The control on the form changes color and text as it should, but the cell in the dvg simple changes text from FALSE to TRUE.
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Jul 8, 2009
is it possible to add a custom control to a datagridview column?
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Nov 25, 2010
i'm attempting to develop a calendar using datagridview where column headers are dates and row headers are list of employees.
i would like to add a button/custom control on the datagridview to represent a task over time where I can move or resize at runtime.
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Nov 30, 2011
I am trying to display a custom control in a datagridview cell so that I can show nicely formatted information.
I am quite comfortable with the use of datagridview control accepting a list of objects as its datasource. I am also comfortable with populating the cell contents in the cellformatting event.
So I am planning to, instead of using a normal textbox control, button control and linkedtext control in datagridview cell, display my own custom control which is good one for displaying some custom data like, name, address, telephone, photo and others. It would be a nice improvement in my application.
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Jun 5, 2009
I have added a custom Control to my project, but every time I edit it and rebuild the form that I use the custom control in adds the project name in front of the control and won't compile. i.e. Project name = MyProject, Custom Control name = MyControl. When I rebuild the project after editing my control I get an error, MyProject.MyControl doesn't exist. If I remove the MyProject from the line it compiles and runs fine until next time I edit the custom control.
I can't figure out what I would be doing wrong to cause this, or why it is putting the project name in front of the control, but then not accepting it. I am also struggling figuring out how to change the back color on an individual cell in an Datagridview Combo Box. The style.backcolor property of the cell doesn't seem to do anything.
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Jul 30, 2010
1. I have a DataGridView box, that is connected to a MySQL database via the 'Data Source'. I am trying to do the datagridview1.rows.add("info here"), however i receive an error i cannot do this programmatically. I DO know the code to post to MySQL via the "insert into" la la la.However, I was curious if I can do this via the datagridview a bit..easier/simpler, such as a "datagridview1.rows.add(stuff)" sorta thing.
2. I am attempting to make a custom control, and as with ANY control, they have their.. settings. Example, a textbox, or label, has so you can set the Text. and color, etc.Others, have it (such as datagridview) have the little icon on the control itself, where you click it, and it opens a small window with settings.
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Jun 25, 2009
I came across this great article on creating a custom datagridview column which creates a graph-like effect in the cells of a custom datagridview column:[URL]..Does anyone know how you would edit this to format the number in the cell as a percentage? And does anyone know how you would set this up to take 0 values which do not create any graph effects at all.I have been trying to do this but keep getting errors.
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Dec 29, 2011
how to specify a custom icon for display in the toolbox window when you create your own custom control? Something other than the dreaded "gearbox" icon.
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Jul 11, 2011
I have an ASPX Custom Control which is supposed to load it's properties into an internal collection (defined with PersistenceMode.InnerProperty). Here's the ASPX
<cc:CustomControl runat="server">
<Queries>
<cc:QueryTypeOne ... />
[code]...
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Jan 11, 2010
I am using custom textboxes and I need to be able to set the Text on txb1 based on the Text of txb2. I have simplied my code to the following:
Public Class customtextbox
Inherits TextBox
Public Event ControlReset()
[Code]....
So, when txb1 looses focus, if its Text is "fried", then it sets off txb2's ProcessAlert function. I had tried to change the value of txb2 Text in ProcessAlert function, but didnt work, so I tried to get it to raise an event instead, which then tries to set the Text property. However I still cant set txb2's Text property. The Text property seems to be set for the duration of the "life" of the Event handler. When I step through the forms controls within the Event handler, the changed Text value is there, but not outside of the Event handler.
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Jul 29, 2009
I've created my own ascx control with button inside it. Now I'm using this control inside other control. (In my case it is a webpart). What I would like to do is program button.click logic from my custom control inside webpart
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Jul 17, 2011
Can a custom control NEW Sub be the only one that executes when Inheriting from an existing control please?I am Inheriting from TabControl and I do not want the base New Sub called, is this possible?In other words, I do not want TabPage1 and TabPage2 to be added.A Form has an Activated Sub which runs once a Form is activated.It is a pity that Microsoft have not got such a method in the baseControl Class otherwise I could have used it within a custom TabControl.
Public Class Form1
Private Sub Form1_Activated(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Activated
End Sub
[code]....
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Apr 29, 2010
We have a ASP.NET web application written in VB.NET where we build content programmatically during the Init event.We make extensive use of user controls, building them on the fly, and I now want to start including SilverLight content.Is there an easy way of embedding a SilverLight application in a control, and then instantiating the whole thing in code, in the same way as you'd programmatically add ordinary ASP.NET controls to a page?The SilverLight component itself works fine when added to a page using the <object> tag but I really want to be able to reuse it elsewhere in code.Since I'm expecting use of SilverLight to increase in our application, and the asp:Silverlight control seems now to be deprecated, I'm looking for an alternative way of wrapping the content.
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Nov 25, 2009
What I've done is create a User Control Library (Project) and I've added a single User Control to that project. The control contains a single FlowLayoutPanel, and I created a Property on the control itself to pass the FlowDirection from the Control to its FlowLayoutPanel child.
Build, reference, component appears in the Toolbox and everything works fine, but the property on the control does not appear in the Properties window when I go to edit it at design time.
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Jan 9, 2012
I want to understand N-tier architecture like when to use and so on.Also I would like to know about user control and custom control.
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Aug 17, 2011
I simply want to add my custom TextBox to DataGridView.
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Nov 23, 2010
I'm trying to create a custom DataGridViewColumn and DataGridViewCell, and have found this article to be a great resource. I'm done creating the DataGridViewColumn class and the DataGridViewCell class, however, when I try to edit the type of the column, my new custom classes don't show up as one of the options. My DataGridViewScheduleColumn inherits DataGridViewColumn, so I'm not too sure what I'm doing wrong. Is there anything else I need to do to expose these classes to the IDE?[code]...
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Nov 11, 2011
How could I have a datagridview on a form that could be tailored by the user having the options of lower/greater than, equals to/not equals to etc on each column?
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Jun 5, 2011
I have a DataGridView that is being populated via SQL with one table and is being filtered by Stock Code. I need to sort the view of one Stock Code by Nutrient names, but the sequence number is in anther SQL table. it would be easy if i could put the sequence in one table but that's not possible
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May 31, 2009
I'd like to add some custom properties to the columns of my DataGridView control. I'm not sure how to do it.I tried this once before but never got it finished. Basically, I'm making a teacher gradebook. Fore each column, I need to add properties called Assignment,DateAssigned, DateDue, PerfectScore, AssignmentType, etc.
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Feb 5, 2009
I have a DGV with several columns in it displaying some data. I want to be able to have certain rows in the DGV act as category headers to provide separation of the data. The category header should be a row that has one column that extends the full width of the DGV. How can I create this mix of single & multicolumn rows within the same DGV?
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Sep 2, 2011
I am trying to make a listview custom control based on the standard listview control that will allow me to drag a column header outside the standard listview control and drop it on a panel. I plan to use the drop event to determine which column I should group by view on.
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Jul 4, 2010
[URL]I tried dragging it but it didn't work. I'm not used to the IDE. Also, how would I make that control at runtime and place it on the form I understand you would do
PHP Code:
Dim myAccount as new TAccount
But how do I display it on the form?
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Apr 2, 2010
I want to create a custom control in a dll file.
I can make this without a dll file, also inside a normal project, making a class for it and inheriting the desired base control class, compiling the project and the toolbox has the custom control.
But now I want to make it in a separate file, in a dll file. I use vb express 2008.
I start a new class library project, add the reference System.Windows.Forms to the project and add this code (this is only an example):
Inherits System.Windows.Forms.Button
Private Sub New()
Me.Backcolor=Color.Red
End Sub
I compile the project and get the dll file. Then I add this file to the toolbox, but I get the error message: "this control has no components."
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May 3, 2010
I'm trying to play with this: [URL]..I have no clue how to use it though.What i THOUGHT i had to do was open the project and "build" it to produce a .dll or something which i would then add as a reference in my new project. I'm unable to open the solution so i could not test this theory.
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Dec 4, 2009
I have a few classes, one is a form, the other is the source of the datagridview. I want to be able to sort the columns of the datagridview by clicking on the header. Here are the classes that I am dealing with:
Imports DiscoveryByte.AddTools.Misc_Tools
Public Class ViewDiscoveryFlashCards
Private DBBindingSource As New BindingSource
[code].....
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Feb 16, 2010
I have a DataGridView where I would like drawing custom glyph (let's suppose a triangle) on the column header when the user click on it.
I have the property EnableHeadersVisualStyles set to False.
how to reach the desired result? Do I need to inherit from DataGridView, or DataGridViewColumn?
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Nov 23, 2010
I have created a custom control to handle the editing of certain cells within my datagrid, I basically have a - and + button with a value inbetween ie. - 1.25 +
as I click on the + or - the value goes up or down, now the values come from an array and are paired, so if I adjust the value of row 1 I want the value of row 2 to reflect the opposite pair from the array.
this I have working well, the problem come when I click off the editing control on row 1 and into the cell on row 2, a new editing control fires but shows the value from row 1.[code]...
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Apr 7, 2012
My issue is that if I use a blank dgv that populated the third cell of a row when the first (or second) is entered, the cursor drops down when enter is pressed. I tried to use CellLeave, assuming that this problem was a result of the cell not being changed. It doesn't work at all in CellLeave.
Is there a way for me to mannually move to the first cell of the next row when x =1?
Private Sub dgvAlocexp_CellEndEdit(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvAlocExp.CellEndEdit
Dim y As Integer = dgvAlocExp.CurrentCellAddress.Y
[Code].....
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Sep 9, 2010
My requirement is as follows, I am calling a procedure and I'm populating a DataTable. Assume that the procedure is returning emp_id, emp_name, designation and status. When I use DataGridView1.DataSource = <Name of the DataTable>, I get all the columns populated into the DataGridView. How can I display only selected columns in the DataGridView. For e.g, I want to show only emp_id and emp_name.Similarly, as to how I can increase the width of the columns of the DataGridView by writing code.
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