I'm trying to create a Grid in MVC3 with razor and VB.NET. The normal Grid works fine, sorts and paginates fine, but when trying to make the Ajax binding, I get an error 500 - internal server error when I try to go to the next page.
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I have a Telerik RadGrid that has three bound columns and one button column. I would like to let the user edit the values in only one of the bound columns. The user can add a new record so i can't set the two bound column to read only. Is there anyway i can do this in the ASPX or do i have to do it in the code behind? I have some code that is working but it is not the best.Here's my code:
Case "Edit"
Dim aoeAnswerCode As GridBoundColumn = CType(e.Item.OwnerTableView.GetColumn("aoeAnswerCode"), GridBoundColumn)
aoeAnswerCode.ReadOnly = True
Case "Update", "PerformInsert"[code].....
Is there a way to change the caption on a gridButton on a Telerik RADGrid (on a ASP.NET web page) , depending on another of the bound fields (in this case active) e.g if active = true text = "Disable", if active = false then text "Enable"
I have resolved the issue by iterating through the e.items on the databound event, but wonder if there a 'cleaner' method for doing this
I've got a normal Telerik hierarchical grid with a child detail table. However when the items get bound in the master table there is an extra row between each item. It has a cell with the class "rgExpandCol". I suppose this has to do with the expand icon? I have run out of ideas...
Has anyone out there experienced this before?
I have a problem with the Telerik grid that I can't seem to find quite the exact problem anywhere. I'm following the demo from their site for Client Side Edit Templates. When going into edit mode it immediately dies saying select method is undefined from this js statement:
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I'm trying to page and sort my DataGrid which is inside a ModalPopupExtender but I can't page it in any way, already tried with <Triggers>, put the UpdatePanel inside, outside, in the middle, and it does NOT work. Modal popup does not get closed but the grid just disappears. Code:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
BindData()
End If
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i'm just sending a normal POST request using Ajax.BeginForm... i output the form elements using the TextBoxFor and .HiddenFor etc... all as i should... and when it's posted via ajax to my action method, the object in the action method (named "Comment") is not populated with the values!
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I am trying to pass a different template to a Telerik Grid, depending on if the add button or the edit button is pressed (on creation: a few field to fill. on existing: add button : some extra fields to fill, edit button : most field are read-only, new field to fill).
Dim myGrid = Html.Telerik().Grid(Of SomeModel) _
.Name("myGrid")
If Model.Action = AddNewData Then
myGrid.Editable(Sub(editing) _
[code]....
I have no idea on how to do the if "gridBoutonPushed = Add" then part.
I have a data grid view populated by a query, how would I go about getting the mode from a column of values in the data grid view (from the queried data)
View 7 RepliesI use the data binding mode to fill data into a list box, that is just fill all of the data in the table. if I want to group one of the table column and only display it in the listbox, how can I get this done? I know how to add a getData query to my table adapter, but how can I bind that new datatable to the list box at runtime?? cuz I need to put the data binding mode information in before I run the application and in the binding mode is no way to choose that getData query.
View 4 RepliesIs it possible to connect ado.net to an xml file and then make the xml file a data source on my project where I can bind controls to it in designer mode?
View 2 RepliesWhat is the real mode , protected mode , supervisor mode and the hypervisor mode ?
View 1 RepliesHow can I increase the size of the edit mode text box in Grid View.I am using VB .net
View 8 RepliesI've a WPF application with a main grid with 4 rows. I wont to bind the property MaxHeight of the row(0) by XAML or code behind to the Height value of the control inside. The control inside row(0) is a ScrollView and runtime I adding controls inside the SV. I've tried with the XAML code:
<Grid Name="MainGrid">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" MinHeight="64" MaxHeight="{Binding Path=ActualHeight, ElementName=HeaderScrollViewer}"/>
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I'me getting real dumb with this one....I have this class:
Public Class whatever
Public id as string
Public name as string
public date as string
end class
Wich I use with this code:
dim personlist as new arraylist
dim person as new whatever
person.id="1"[code].....
and then i repeat so that i can fill my arraylist with all the information that I want to show in my gridview.The problem is this:
gridview1.datasource = personlist
gridview1.databind()
When executing, I get an error saying :
The data source for GridView with id 'gdpersonlist' did not have any properties or attributes from which to generate columns. Ensure that your data source has content.
url... with refernce to the above url code i am binding my datgridview , but nothing is getting displayed i the grid how do i bind the grid with dataadapter or datareader
View 4 RepliesIs is possible to bind two BindingList<> object to the DataGridView? Both the bindinglist objects are of the same type. I tried binding an array of BindingLit<> object to the grid, but this fails.
View 3 Repliesanybody recommend a 3rd party DataGrid control similar to the MS DataGridView.I would like something that can handle null vales without throwing Object reference errors. Decent hosted controls support (for things like Type-In Combo Boxes, date time picker) Similar Data Binding options as the MS Grid and something that will look like a normal grid and mix well with the standard MS Controls.
View 2 RepliesYou have a pseudo-table class and a pseudo-row class. The row is somewhat generic and has no strongly-typed fields. It follows the typical dictionary interface
Dim age As Object = person("Age") 'accessed via default property Item
vs
Dim age As Integer = person.Age 'an actual property typed as an Integer
What's the pattern to use so that we can bind our pseudo table and its rows to a grid or combo box?
Dim rs As New clsResultSet(tblPeople)
Dim id As Object = rs(0)("Id") '913
Dim name As Object = rs(0)("Name") 'Ted[code].....
I have created a user control. The user control has a button and a propertyGrid. I wrote a function to bind data to propertyGrid. When I click the button I called the function and datasource binded to propertyyGrid, its working fine. The same way am binding the grid from another class.vb, the datasource binding not throwing any exception. But the data not showing in the grid. Should I need to change any modifier.
View 1 RepliesI'm looking to see if anyone has a sample app or has a link to such an app that uses data binding with a grid control and textboxes and is able to insert, change and delete from a datatable which gets updated to a sql server database.I have done an app that has the grid control and the textboxes already and is able to change and delete from the datatable and that action is reflected in the grid control because it has the datatable as the binding source.
The problem I'm having is when the user tries to insert into the datatable I get a concurrency violation error when using the .Update statement to save the changes to the database. This is happening because I don't know exactly how to get those inserts synchronised correcly.I'm sure I'm also doing the processing wrong but here is what I'm doing.When the user clicks an insert button I insert a new row into the datatable. The user now has the ability to enter text into the textboxes. When the user is finished doing that the user can click the save button which issues a .Update statement. That's where the error is displayed
My problem is similar to the one described in this article, but I'm trying to use a different grid (DevExpress.xtraGrid) and therefore the answer (if it even works) does not apply for me: [URL]
Briefly, I'm binding the grid to the collection of custom objects - cMessage - to grid's datasource, but I don't want all the propertieties of the cMessage to be shown in the grid. Is there any way to hide some properties from the binding, while leaving them acessible from outside (ie.leave them as public or friend)?
How can I do this, this what I got so far.
Dim ClassID As Integer = 1
Dim da As New SqlDataAdapter
Dim con As New SqlConnection("Data Source=.SQLEXPRESS;AttachDbFilename=D:Database
[code].....
Option Strict disallows Late Binding for behind form code dynamic building grid columns VS2008 VB.NET ASP.NET 3.5 bf.DataField = strDataField(ForCount)
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Data binding should be an extremely simple thing to manage but I can't find a SIMPLE solution to the following problem.
I have two forms
Form1 contains a 4x4 MSFlexGrid (unfortunately an unmanaged COM object but I can merge cells, which I can't do with a managed Datagrid)
Form2 contains other controls which change the data in the Flexgrid.
I connect the two with a Public 4x4 array. Form2 changes the data in this array. I can update the grid data by reading the array. But how do I bind the Grid to the array so that it auto-updates - which is the whole point of binding isn't it?
I'm wondering if there is any code that I could use in VB.net so it can determine the computer's startup mode (such as safe mode or safe mode with networking).
View 1 Repliesi am using visual studio 2005 on win 7 with office 2007. i have developed win application. i am using microsoft activex spreadsheet component in my program. so it automatically creates reference to AxInterop.OWC11.dll When i run program in debug mode (open program and click RUN in toolbar it works) but if i run directly .exe (go to bin elease doubleclick .exe) it give error at loading point of that component. It says "Attempted to read or write protected memory. This is often an indication that other memory has been corrupted." An unhandled exception occurrs.
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I work for a shop that maintains a fairly new app. The app still has its fair share of bugs, with numerous tickets coming in daily. The error information we're given with those tickets is not as useful as it might be because the application was compiled in Release mode, which I read is smaller and faster (makes sense).
Are there any ramifications to deploying a .NET application to production that was compiled in Debug mode? I would expect it would be a bit slower, but I've read the difference is nominal. This would assure us that when we get errors on tickets we have line number associated with those errors and this, of course, makes debugging much easier. major red flags that would prevent you from doing this? I'm tasked with researching the possibility.
This is applicable to C# and VB.Net. I am writing a console application, but one aspect of it I want to make representable in a GUI (that being downloads running, with progress bars). is it possible to write a console mode application that can also have a form in it that can be called from code inside the console component?
View 3 Replieswan to ask about anyone know the code about how to clear all the data inside the data grid view without clear the binding source...
View 1 Replies