Add multiple rows based on field validation

2 posts, 0 answers
  1. Vijay
    Vijay avatar
    7 posts
    Member since:
    May 2013

    Posted 26 Jan 2014 Link to this post


    I want to add (create and add to my datasource) multiple rows to my grid based on validating a field in the 'add new row' row.
    At present, when I do this (as described below) it leaves me with the row being added. I would like to cancel the added row. In doing this I have been wondering if I am going about it all incorrectly, however:

    I am unsure if I should perform some other function that captures the Add New Row functionality, if I should be doing what I'm doing (validating on CellValidating and adding the new rows) or using CellEndEdit or some other function to perform the load and cancelling the original edit.

    In the grid (ProductCode, Operation, Quantity, Hours, and some resultant fields), I am trying to allow the user to enter in a specific sub-product code - to enter in one line, or to enter in a parent product code which will pre-populate a bunch of rows (for all the children meeting the criteria).

    It currently is working as I want, barring the cancelEdit usage after adding in bulk. I'm not sure how to accomplish this (or do it better). Any advice would be really appreciated!

    Here is basically what I currently have:
    Private Sub rgvProducts_CellValidating(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellValidatingEventArgs) Handles rgvProducts.CellValidating
            Dim col As GridViewDataColumn = e.Column
            Dim validateMessage As String = ""
            lblMsg.Text = ""
            If quitValidating Then
            End If
            If e.Row IsNot Nothing Then
                'if new row and field entered is "ProductCode"
                If e.Row.GetType Is GetType(GridViewNewRowInfo) AndAlso col.FieldName = "ProductCode" Then
                    If String.IsNullOrWhiteSpace(e.Value) Then
                        'show validation message: cannot be blank
                    End If
                    Dim coreProducts As DataTable
                    Dim lp As LabourProduct
                    Dim resultsMessage As String = ""
                    'Check if ProductCode value is valid against CoreProduct mapping
                    If ApplicationFunctions.fieldValidate("CoreProductCode", e.Value) Then
                        coreProducts = Labour.retrieveCoreProductRows("", e.Value, cl.Operation) 'retrieve set of CoreProduct rows filtered by Operation
                        If coreProducts.Rows.Count = 0 Then
                            'show validation message: No CoreProduct items found
                        ElseIf coreProducts.Rows.Count = 1 Then 'if single row returned, allow editing in-line
                            rgvProducts.CurrentRow.Cells("ProductCode").Value = coreProducts.Rows(0)("CoreProductCode")
                            rgvProducts.CurrentRow.Cells("Operation").Value = coreProducts.Rows(0)("Operation")
                            rgvProducts.CurrentRow.Cells("ActualQuantity").Value = coreProducts.Rows(0)("StandardQuantity")
                            rgvProducts.CurrentRow.Cells("StandardQuantity").Value = coreProducts.Rows(0)("StandardQuantity")
                            rgvProducts.CurrentRow.Cells("StandardHours").Value = coreProducts.Rows(0)("StandardHours")
                            rgvProducts.CurrentRow.Cells("EarnedHours").Value = coreProducts.Rows(0)("StandardHours")
                            rgvProducts.CurrentRow.Cells("Description").Value = coreProducts.Rows(0)("ProductDescription")
                            resultsMessage = ProcessCoreProductDataTable(coreProducts) 'This adds multiple rows to grid and saves the objects
                            If Not resultsMessage = "Success" Then
                                'show validation message: Error saving
                            Else 'Here trying to rebind the data source and cancel the edit
                                ApplicationFunctions.showMsg(lblMsg, resultsMessage, ApplicationFunctions.AlertModes.Positive)
                                rgvProducts.DataSource = ""
                                rgvProducts.DataSource = cl.LabourProductList
                            End If
                        End If
                    Else 'if not matched against the CoreProduct, then trying to match against Product parent
                        coreProducts = Labour.retrieveCoreProductRows(e.Value, "", cl.Operation)
                        If coreProducts.Rows.Count > 0 Then 'if rows returned then add them
                            resultsMessage = ProcessCoreProductDataTable(coreProducts)
                            If Not resultsMessage = "Success" Then
                                ApplicationFunctions.showMsg(lblMsg, resultsMessage, ApplicationFunctions.AlertModes.Negative)
                                e.Row.ErrorText = resultsMessage
                                e.Cancel = True
                                ApplicationFunctions.showMsg(lblMsg, resultsMessage, ApplicationFunctions.AlertModes.Positive)
                                rgvProducts.DataSource = ""
                                rgvProducts.DataSource = cl.LabourProductList
                            End If
                        'else show validation message: product code entered invalid
                        End If
                    End If
                ElseIf (e.Row.GetType Is GetType(GridViewDataRowInfo) Or e.Row.GetType Is GetType(GridViewNewRowInfo)) And Not col Is Nothing Then 'only inline editing for any already entered rows
                    validateMessage = validate(col.FieldName, e.Value)
                    If validateMessage <> String.Empty Then ApplicationFunctions.showMsg(lblMsg, validateMessage, ApplicationFunctions.AlertModes.Negative)
                End If
            End If
        End Sub
        'add items in bulk and save
        Private Function ProcessCoreProductDataTable(ByRef coreProducts As DataTable) As String
            Dim saveMessage As String = ""
            Dim lp As LabourProduct
            For Each cp As DataRow In coreProducts.Rows
                lp = New LabourProduct()
                lp.LabourID = cl.LabourID
                lp.ProductCode = cp("CoreProductCode")
                lp.CoreBoxNumber = lp.ProductCode.Substring(lp.ProductCode.LastIndexOf("_C"))
                lp.Operation = cp("Operation")
                lp.ActualQuantity = cp("StandardQuantity")
                lp.StandardQuantity = cp("StandardQuantity")
                lp.StandardHours = cp("StandardHours")
                lp.EarnedHours = cp("StandardHours")
                lp.Description = cp("ProductDescription")
                If Not Then
                    Return saveMessage
                End If
            Return saveMessage
        End Function

  2. George
    George avatar
    500 posts

    Posted 29 Jan 2014 Link to this post

    Hi Vijay,

    Thank you for contacting us.

    If you want to stop the user from adding new rows from the NewRow of RadGridView then you can use the UserAddingRow event, which can be canceled. Then you can add your own rows.

    Let me know if you need further assistance.

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