Datagrid set value as Date

[gbfai87]

Hi,
Is there any way to set the value of an item in DGV in a Date only?.

I was trying to send each cell value in my DGV.
but when I change the value to ".tostring" it transfer the date also with time.
but when I change the value to format date. it doesnt accept to transfer if cell value is Null.

here is my code.

Dim i As Integer
i = DGVEmployee.CurrentRow.Index
LblID.Text = DGV.Item(0, i).Value.ToString
TBEmpID.Text = DGV.Item(1, i).Value.ToString
TBSponsor.Text = DGV.Item(2, i).Value.ToString
TBDesignation.Text = DGV.Item(3, i).Value.ToString
TBJoinDate.Text = Format(DGV.Item(4, i).Value, "dd-MMM-yyyy")

[ChrisE]

Hi,

try this, you have to pass the Column Name to Format the Date

Public Class Form6

    Dim tb As DataTable = New DataTable


    Private Sub Form6_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        tb.Columns.Add("ID")
        tb.Columns.Add("Date Returned")
        'some Data
        tb.Rows.Add("1", "01.01.2018 12:00:33")
        tb.Rows.Add("2", "01.05.2018 14:00:33")
        tb.Rows.Add("3", "08.10.2018 12:00:33")
        tb.Rows.Add("4", "01.01.2012")
        DataGridView1.DataSource = tb
    End Sub

    Private Shared Sub ShortFormDateFormat(ByVal formatting As DataGridViewCellFormattingEventArgs)
        If formatting.Value IsNot Nothing Then
            Try
                Dim theDate As Date = DateTime.Parse(formatting.Value.ToString())
                Dim dateString As String = Format(theDate, "dd-MMM-yyyy ")
                formatting.Value = dateString.ToString()
                formatting.FormattingApplied = True
            Catch notInDateFormat As FormatException
                formatting.FormattingApplied = False
            End Try
        End If
    End Sub

    Private Sub DataGridView1_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles DataGridView1.CellFormatting
        If Me.DataGridView1.Columns(e.ColumnIndex).Name = "Date Returned" Then
            ShortFormDateFormat(e)
        End If
    End Sub
End Class

[techgnome]

Hi,
Is there any way to set the value of an item in DGV in a Date only?.

I was trying to send each cell value in my DGV.
but when I change the value to ".tostring" it transfer the date also with time.
but when I change the value to format date. it doesnt accept to transfer if cell value is Null.

here is my code.

Dim i As Integer
i = DGVEmployee.CurrentRow.Index
LblID.Text = DGV.Item(0, i).Value.ToString
TBEmpID.Text = DGV.Item(1, i).Value.ToString
TBSponsor.Text = DGV.Item(2, i).Value.ToString
TBDesignation.Text = DGV.Item(3, i).Value.ToString
TBJoinDate.Text = Format(DGV.Item(4, i).Value, "dd-MMM-yyyy")

Are you trying to set the formatting on the grid, or on the date coming from the grid to the text boxes? beause your code there isn't setting it ont he grid, which you shouldn't have issues with. I've never had issues with setting the format on a grid with respect to dates and null values. It should handle that just fine. So it sounds like the issue is with that last line where you're reading the value from the grid and transfering it to a text box and it's erroring out because it's null and you're explicitly trying to apply a format... which yeah, it's going to fail... soooooo.... wouldn't the obvious solution then be to check for the null value first, and if it's null, don't copy the value, and if it isn't null, do copy it and format it?


-tg

[jmcilhinney]

You are doing this in completely the wrong way. If you have bound your data to your grid then you can bind it to the other controls as well and let the binding handle the formatting, e.g.

DGVEmployee.DataSource = myDataTable
 
TBJoinDate.DataBindings.Add("Text", myDataTable, "JoinDate").FormatString = "dd-MMM-yyyy"

[jmcilhinney]

Of course, if you wanted to stick with your current method and you're having issues when the data is NULL, the obvious solution is to check whether the data is NULL before using it.

TBJoinDate.Text = If(DGV.Item(4, i).Value Is DBNull.Value, String.Empty, CDate(DGV.Item(4, i).Value).ToString("dd-MMM-yyyy"))