Hi Team,
         We are using the windows application (vb.net). In our project, we need to hide one of the header text columns (Price) in the RadGridView dynamically. We are setting the condition to hide and show the HeaderText. If the value is "0" the Headertext (Price) should be hidden. If the value is 1 it should be visible. Can you please help with it. Screenshot mentioned below for your reference.

Screen Shot link

I have a RadGridView with several columns: 1st is a checkbox, 2,3,4 contain some strings.

If I want to select a checkbox and I click on the first column, the CellClick event is fired but there's something I don't understand.

When the first CellClick event is fired, the Checkbox does not get activated. When I click again on the checkbox, only then it is activated but for some reason it goes out of sync with my code. When the UI shows it is activated, the code says that nothing is selected and viceversa.

How should I properly do a selection of multiple checkboxes which trigger from the first click?

While I have been a heavy user of the Asp.net/Ajax suite of Telerik controls, I have never actually deployed any winforms based apps before.  I took an existing legacy production application, stripped it of Crystal Reports, added a RadGridView control along with a couple of RadButtons.  Everything works marvelously in a development mode. When it comes time to publish the application it appears to be impossible to publish it and install the resulting installation.

I have used all the suggestions I have found, such as resetting the "Application Files" on the publish page.  Everything seems to be properly configured yet the application remains un-installable once published.  I get "the manifest may not be valid or the file could not be opened errors".  The "invalid child element 'SignedInfo' is found.  I have dug into the installation folder and see the relevant files are in place.

Now I hesitate to point fingers to Telerik however the second I rollback to my pre-Telerik state I can publish the same app, using the identical settings, and properly install the application.  This suggests, to me, that I am somehow failing to include something.  Can anyone please assist or point me to help?

Am I missing some magic?

The error log generated is along the following:

PLATFORM VERSION INFO
Windows : 10.0.19041.0 (Win32NT)
Common Language Runtime : 4.0.30319.42000
System.Deployment.dll : 4.8.4200.0 built by: NET48REL1LAST_C
clr.dll : 4.8.4200.0 built by: NET48REL1LAST_C
dfdll.dll : 4.8.4200.0 built by: NET48REL1LAST_C
dfshim.dll : 10.0.19041.1 (WinBuild.160101.0800)

SOURCES
Deployment url : file://ipc-8930d/InstallSite/Internment/Interment.application
Deployment Provider url : file://ipc-8930d/InstallSite/Internment/Interment.application

IDENTITIES
Deployment Identity : Interment.application, Version=2.0.0.0, Culture=en-US, PublicKeyToken=e691ae88eb0bb1c9, processorArchitecture=x86

APPLICATION SUMMARY
* Installable application.

ERROR SUMMARY
Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of \\ipc-8930d\InstallSite\Internment\Interment.application resulted in exception. Following failure messages were detected:
+ Exception reading manifest from file://ipc-8930d/InstallSite/Internment/Application%20Files/Interment_2_0_0_0/Interment.exe.manifest: the manifest may not be valid or the file could not be opened.
+ The element 'assembly' in namespace 'urn:schemas-microsoft-com:asm.v1' has invalid child element 'SignedInfo' in namespace 'http://www.w3.org/2000/09/xmldsig#'. List of possible elements expected: 'dependency' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'dependency' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'file' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'file, configuration, deployment, entryPoint, trustInfo, licensing, migration' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'clrClass' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'clrClass' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'clrSurrogate' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'clrSurrogate' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'comInterfaceExternalProxyStub' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'comInterfaceExternalProxyStub, KeyInfo' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'Signature' in namespace 'http://www.w3.org/2000/09/xmldsig#' as well as any element in namespace 'urn:schemas-microsoft-com:asm.v3' as well as 'publisherIdentity' in namespace 'urn:schemas-micr....

COMPONENT STORE TRANSACTION FAILURE SUMMARY
No transaction error was detected.

WARNINGS
There were no warnings during this operation.

OPERATION PROGRESS STATUS
* [8/22/2020 7:47:24 PM] : Activation of \\ipc-8930d\InstallSite\Internment\Interment.application has started.
* [8/22/2020 7:47:24 PM] : Processing of deployment manifest has successfully completed.
* [8/22/2020 7:47:24 PM] : Installation of the application has started.

ERROR DETAILS
Following errors were detected during this operation.
* [8/22/2020 7:47:24 PM] System.Deployment.Application.InvalidDeploymentException (ManifestParse)
- Exception reading manifest from file://ipc-8930d/InstallSite/Internment/Application%20Files/Interment_2_0_0_0/Interment.exe.manifest: the manifest may not be valid or the file could not be opened.
- Source: System.Deployment
- Stack trace:
at System.Deployment.Application.ManifestReader.FromDocument(String localPath, ManifestType manifestType, Uri sourceUri)
at System.Deployment.Application.DownloadManager.DownloadApplicationManifest(AssemblyManifest deploymentManifest, String targetDir, Uri deploymentUri, IDownloadNotification notification, DownloadOptions options, Uri& appSourceUri, String& appManifestPath)
at System.Deployment.Application.ApplicationActivator.DownloadApplication(SubscriptionState subState, ActivationDescription actDesc, Int64 transactionId, TempDirectory& downloadTemp)
at System.Deployment.Application.ApplicationActivator.InstallApplication(SubscriptionState& subState, ActivationDescription actDesc)
at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl, Uri& deploymentUri)
at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivationWithRetry(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivationWithRetry(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl)
at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state)
--- Inner Exception ---
System.Xml.Schema.XmlSchemaValidationException
- The element 'assembly' in namespace 'urn:schemas-microsoft-com:asm.v1' has invalid child element 'SignedInfo' in namespace 'http://www.w3.org/2000/09/xmldsig#'. List of possible elements expected: 'dependency' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'dependency' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'file' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'file, configuration, deployment, entryPoint, trustInfo, licensing, migration' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'clrClass' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'clrClass' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'clrSurrogate' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'clrSurrogate' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'comInterfaceExternalProxyStub' in namespace 'urn:schemas-microsoft-com:asm.v1' as well as 'comInterfaceExternalProxyStub, KeyInfo' in namespace 'urn:schemas-microsoft-com:asm.v2' as well as 'Signature' in namespace 'http://www.w3.org/2000/09/xmldsig#' as well as any element in namespace 'urn:schemas-microsoft-com:asm.v3' as well as 'publisherIdentity' in namespace 'urn:schemas-micr....
- Source: System.Xml
- Stack trace:
at System.Xml.Schema.XmlSchemaValidator.SendValidationEvent(ValidationEventHandler eventHandler, Object sender, XmlSchemaValidationException e, XmlSeverityType severity)
at System.Xml.Schema.XmlSchemaValidator.ValidateElementContext(XmlQualifiedName elementName, Boolean& invalidElementInContext)
at System.Xml.Schema.XmlSchemaValidator.ValidateElement(String localName, String namespaceUri, XmlSchemaInfo schemaInfo, String xsiType, String xsiNil, String xsiSchemaLocation, String xsiNoNamespaceSchemaLocation)
at System.Xml.XsdValidatingReader.ProcessElementEvent()
at System.Xml.XsdValidatingReader.Read()
at System.Deployment.Application.ManifestReader.FromDocument(String localPath, ManifestType manifestType, Uri sourceUri)

COMPONENT STORE TRANSACTION DETAILS
No transaction information is available.

Hello,

I tried to remove the text indent of RadLabel but i couldn't.

Should I make the RadLabel's text have no any indents?

As in the attachment, I already set the margin and padding to 0

Please help me

Thanks,

Dear all 

I have a question 

how do all this syntax in GVMCCB ? 

    Private Sub CMMBCustomer_CustomFiltering(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewCustomFilteringEventArgs)

        Dim element As RadMultiColumnComboBoxElement = MCCBCustomer.MultiColumnComboBoxElement

        Dim textToSearch As String = MCCBCustomer.Text
        If AutoCompleteMode.Append = (element.AutoCompleteMode And AutoCompleteMode.Append) Then
            If element.SelectionLength > 0 AndAlso element.SelectionStart > 0 Then
                textToSearch = MCCBCustomer.Text.Substring(0, element.SelectionStart)
            End If
        End If

        If String.IsNullOrEmpty(textToSearch) Then
            e.Visible = True

            For i As Integer = 0 To element.EditorControl.ColumnCount - 1
                e.Row.Cells(i).Style.Reset()

            Next

            e.Row.InvalidateRow()
            Return
        End If

        e.Visible = False
        For i As Integer = 0 To element.EditorControl.ColumnCount - 1
            Dim text As String = e.Row.Cells(i).Value.ToString()
            If text.IndexOf(textToSearch, 0, StringComparison.InvariantCultureIgnoreCase) >= 0 Then
                e.Visible = True
                e.Row.Cells(i).Style.CustomizeFill = True
                e.Row.Cells(i).Style.DrawFill = True
                e.Row.Cells(i).Style.BackColor = Color.FromArgb(201, 252, 254)
            Else
                e.Row.Cells(i).Style.Reset()

            End If
        Next
        e.Row.InvalidateRow()
    End Sub
    Private Sub CMMBCustomer_KeyDown(ByVal sender As Object, ByVal e As KeyEventArgs)
        With MCCBCustomer
            If e.KeyCode = System.Windows.Forms.Keys.Enter Then
                If .ValueMember <> "" Then
                    .SelectedValue = .EditorControl.CurrentRow.Cells(.ValueMember).Value
                Else
                    .SelectedValue = .EditorControl.CurrentRow.Cells(.DisplayMember).Value
                End If

                .Text = .EditorControl.CurrentRow.Cells(.DisplayMember).Value.ToString()
                .MultiColumnComboBoxElement.ClosePopup()
                .MultiColumnComboBoxElement.TextBoxElement.TextBoxItem.SelectAll()
            End If
        End With
    End Sub

    Private Sub CMMBCustomer_DropDownClosed(ByVal sender As Object, ByVal args As Telerik.WinControls.UI.RadPopupClosedEventArgs) Handles MCCBCustomer.DropDownClosed
        If MCCBCustomer.SelectedIndex <> -1 Then
            LblNamaCustomer.Text = MCCBCustomer.EditorControl.Rows(MCCBCustomer.SelectedIndex).Cells(1).Value.ToString
        Else
            LblNamaCustomer.Text = ""
        End If
    End Sub

    Private Sub CMMBCustomer_Validated(ByVal sender As Object, ByVal e As System.EventArgs) Handles MCCBCustomer.Validated
        If MCCBCustomer.Text = "" Then
            LblNamaCustomer.Text = ""
        End If
    End Sub

Thanks before... 

I'd like to add and show an Bitmap from Resources to Grid Column. But it doesn't work.

Is there any very simple example?

Gridview.Rows[count - 1].Cells[header].Value = new Bitmap(Resources.test);

Hi,

We need to generate a form when you hover over certain tabs on our PageView, as it needs to be interactive, I'm using a ShapedForm to appear on mouse hover over each tab.If there's a better way to do this, let me know.  

The issue is the position it appears in, I can get it to appear where my cursor is easy enough, but I would like it to appear directly next to the tab, the tabs are horizontal on the left hand side, so would like it to appear to the right of the tabs with the top of the tab matching the top of my generated form. 

I'm iterating through each RadPageViewStripElement and subscribing to the mouse hover event, so in my event I have RadPageViewStripItem, but I am not sure how I get the exact position of that tab using that object, as the locations are always relative to the control it is in. 

Any help would be appreciated.

Thanks,

Dan

Can the validation provider do multiple levels of validation. Example it would be a warning if a number was greater than 2.5 and a hard stop error over 5?

Thanks,

Tim

Hello ... 

How to get current index from gridview when it's a new row

i have tried this method ... 

        Dim baris As Integer = GridDetail.CurrentRow.Index
        MsgBox(baris.ToString)

the results is always -1 when i click command cell at new row 

Thanks