Asp.net - Does Having A Theme For A GridView Prevent Changes To A Row's Backcolor Property On RowDataBound
Dec 15, 2009
I'm trying to change the backcolor of a .Net GridView when a certain condition is met. This should be fairly straightforward, but the color change isn't happening. Checking the rendered HTML shows absolutely nothing different in the affected rows even though the text change on the link is happening as expected.There is a default theme set for all gridviews and I haven't worked with that in the past. Is that preventing me from dynamically changing the color of a row or am I missing something else? I'm using .Net 3.5 and have the following in my code behind:
Protected Sub gvPrevious_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs) Handles gvPrevious.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
If currentCorrespondence.IsRetired Then //custom object, returning as expected
Dim link As LinkButton = DirectCast(e.Row.Controls(4).Controls(2), LinkButton)
[code]....
From the above code, when I go into the browser and view source, I would expect to see <tr style="background-color: #CD5C5C;"> for the affected rows. Instead, I see <tr> and <tr class="AlternateRowStyle"> (where appropriate). I see absolutely no effect from the BackColor property change. I have also attempted to use e.Row.CssClass with the same result.
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Mar 14, 2009
I have a DataTable that contains 3 fields: ACount, BCount and DCount. If ACount < 0 then I need to display 'S' in one of the columns of the GridView. If ACount > 0 then I have to display 'D' in that column(in label).Same thing with BCount and DCount. How can I do this conditional check in the RowDataBound function?
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Oct 14, 2011
I have asked a question similar to this in the past. I was able to resolve it by removing gvRowDataBound completely from the code. This is similar code except I can't remove gvRowDataBound sub.
The issue is that when you click the Edit button of the first row, it allows you to successfully update that row.After the first row, if you click on thr edit button of any other row, enter the value to update, it doesn't update that row.
Instead, the cursor moves down to the next row. I didn't design this and having difficulty figuring out what needs to change.
[Code]...
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Mar 18, 2009
Following is code for buttonclick in gridview.
Protected Sub lnkChangeStatus_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim gvr As GridViewRow = TryCast(DirectCast(sender, LinkButton).Parent.Parent, GridViewRow)
Dim lngProfileId As Long = Convert.ToInt64(gvwBusinessProfiles.DataKeys(gvr.RowIndex).Value)
End Sub
I want to get commandargument of lnkChangeStatus in its click.
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Mar 8, 2011
I am trying to an ImageUrl to an image in a Template Field in GridView but keep getting the error:
Object reference not set to an instance of an object. on this line:
Dim imagePath As String = rowView("image_path")
I've never done this before on a GridView but had it working on a ListView.
Heres my code:
.APSX
<asp:GridView ID="gvImages" DataKeyNames="id" runat="server" AutoGenerateColumns="False" BorderWidth="0px" GridLines="None">
<Columns>
<asp:TemplateField>
<ItemTemplate>
[Code] .....
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Jun 28, 2011
I have a GridView control which I am dynamically binding to a DataTable which is populated by a query built based on a set of selected options.What I am trying to do is simply handle the RowDataBound event in order to format specific rows based on the value of a database field. The code in this event handler works fine. My problem is, calling this event causes the GridView to only display the first record in the DataTable, almost as if the Gridview stops after binding to the DataTable after the first row is bound. I have attempted adding the handler dynamically, but I get the same results.I know for a fact that there is sufficient data being returned (the DataTable fills with all of the records, and the GridView shows all the records fine when not touching the RowDataBound event).
I'm adding the handler immediately after generating the query, filling the DataTable, and binding the GridView: [code]I have also determined that, when handling RowDataBound, the GridView's DATABOUND event never gets fired; it seems to stop binding right after binding the first row.
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Dec 12, 2009
I have a theme called 'Zune' on my computer, and like the way it looks.Is there a way too, make the program use the 'Zune' theme..even if the computer itself is using the default xxxx theme?I can simulate it by doing the graphics, but to make the program border less, then to do the move code when they click on the image box...etc... makes it for tedious work.
If I could somehow make the program use the theme..
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Nov 29, 2010
I'm working on an ASP.Net page containing a GridView, which is populated with customer orders returned by a stored procedure. What I'd like to do is dynamically change the backcolor of the GridView rows to indicate priority.
The stored procedure returns an integer indicating the records priority, I think I just need to translate the integer to a color, then make the GridView row display it.
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Oct 7, 2009
I want to change the value & its backcolor of cell. On Button1_Click,I m adding records to the Gridview. On Button3_Click,I want to chnage the value of cell & its backcolor. Suppose two Rows & two columns are there in Grdiview
[Code]...
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Apr 18, 2011
The BackColor of the forms in Visual Studio are a light grey, called Control in the Properties panel. How would I set the BackColor property of a Label to this default color?
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Nov 9, 2011
I'm reading in a configuration file which is simply a txt file that configures my Com port and sets some directories. It's basically for the end user to set the interface. I want to give the user the ability to change backcolor properties on my NumbericUpDown property. So when I read in the Config.txt file the end user can change coloring on the General Form. In this case the NumbericUpDown. How to assign a variable for color from my string (from my txt file) that I read in.
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May 30, 2010
I have this code and it is not working correctly. Note: The code must check the if the data is valid every time the user enters a new datai have 2 columns in my table
Code:
Private Sub Table_CellValidated(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellValidatedEventArgs) Handles Table.CellValidated
[code]....
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Dec 8, 2004
How can i change the backcolor property of an object to an rgb value?
i do as it says in the help:
Code:
dim ink as long
ink = rgb(233,126,190)
lblInkPot.BackColor = ink
but i get the error "Value of type "Long" cannot be converted to "system.drawing.color"", but it specifically tells you in help to use "long"...
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Jul 26, 2011
In the game, I'm using labels and the backcolor property to change their living status. I have an array of the labels. However, when changing their life status using a for loop, i've come across a problem where previous elements in the array effect the next ones before the end of the generation. I found somewhere that recommende I use a different array, However, im not too sure how.
For x = 0 To 400
Boxes(x).Neighbours = GetNeighbours(x)
If Boxes(x).Neighbours = 0 Or Boxes(x).Neighbours = 1 Then
Boxes(x).Alive = False
[CODE]....
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Jun 21, 2011
We have an ItemCommand that makes a DataGridItem invisible. This is breaking the alternating color scheme that we have applied. Is there a way to re-apply the style without rebinding or manually setting each DataGridItem's BackColor property?
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Mar 18, 2009
i hav to knew how to use rowDataBound objective - gotta generate an email for the user who has created ticket on a problem wid all the details.i'm able to retrieve all the records of the tickets bt i want to display only the specific record of the user.
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Mar 10, 2012
I need to modify a button so that I can add a flash property which will flash the backcolor red.Along the lines of RedLightButton.Flash = true.I have the following
Public Class RedLightButton
Inherits Button
Private WithEvents FlashTimer As New Timer
Private isFlashing As Boolean = False
Public Sub New(ByVal ButtonText As String)
[Code]...
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Jan 6, 2011
how to retrieve the selected row cell value if it is visible property is false in gridview ?
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Dec 10, 2010
how to achieveGv.RowDataBound += new GridViewRowEventHandler(Gv_RowDataBound); in vb?
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Jun 1, 2009
I am creating a dropdown list in code for a gridview. I want to create an addhandler so I can have access to the selectedvalue. However, here (Rowdatabound) the add handler does not get fired off. How should I go about this?
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
''//------------does not fire off add handler-----
[code].....
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Apr 26, 2009
I am creating a dropdown list in code for a gridview. I want to create an addhandler so I can have access to the selectedvalue. However, here (Rowdatabound) the add handler does not get fired off. How should I go about this?
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
''//------------does not fire off add handler-----
[code]....
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Dec 20, 2011
I'm following this exampleto build an editable GridView control.I have this code in my GridView:
<asp:TemplateField HeaderText="Negócio">
<ItemTemplate>
<asp:Label ID="lblNegocio" runat="server" Text='<%# Eval("Negocio") %>'></asp:Label>
[code].....
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Nov 8, 2011
I am using a template field in a GridView. The template field is a dropdown list that is generated dynamically in the RowDataBound event.
How can I add a Javascript validation to each of those dropdown lists when they're created?
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Jan 30, 2009
How to use theme in vbwhat's codeOr what's step to use themeI don't know anything about itonly 3 days i have to send my program
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Apr 1, 2010
VB GridView control will not allow code in the vb code file to access a data column that has its visible property set to false. When it is set to true, the data column can be accessed with no problem. Any suggestions as to how to correct this? I have looked through the documentation, text books, and I have not found anything that gave me any clue as to what the problem could be. I thought that the property was just applied to the column, not that it would remove the column from being accessible.
[Code]...
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Feb 18, 2010
I saw other program can use theme in their program , they don't care theme of windows.Can i add theme to my program?but care theme of OS
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Jun 4, 2011
Is there a way to see if the user is using Windows 7.If yes, can we change their theme when the Form loads, and change it back when it closes?
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Apr 10, 2010
I have tried the following code but has no effect:
Imports system.Runtime.InteropServices
<DllImport("UxTheme.DLL", BestFitMapping:=False, CallingConvention:=CallingConvention.Winapi, CharSet:=CharSet.Unicode, EntryPoint:="#65")> _
[Code]....
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Mar 9, 2009
I'm trying to make my app look ok on different computers with Windows XP. Therefor I want to check for the systems "theme" (you know the "olive green" or "standard blue" settings) so that I can load different buttons and backimages etc.
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Oct 9, 2009
i am not able to figure out any code on how to do this. I am trying to make it so when the person chooses a color in the ColorDialog, the all my buttons forecolors go to that, then the dialog will show to pick a back color.
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