i have a pb creating a customized datagridtextbox

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i have a pb creating a customized datagridtextbox

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rtutus
Aged Yak Warrior

522 Posts

Posted - 2006-05-18 : 22:07:19

I have 8 bound columns that display without anyproblem. I m creating my 9th mapped to OptParam and from a customized DataGridTextBoxColumn like this:

Dim DataGridTextBoxColumn9 As New MyDataGridTextBoxColumn

DataGridTextBoxColumn9 = New MyDataGridTextBoxColumn

DataGridTextBoxColumn9.MappingName = "OptParam"

DataGridTextBoxColumn9.HeaderText = "OptParam"

DataGridTableStyle1.GridColumnStyles.Add(DataGridTextBoxColumn9)My MyDataGridTextBoxColumn class is like this: I only change Paint Sub, the others Subs and events, I don't change them :

Public Class MyDataGridTextBoxColumn

Inherits DataGridTextBoxColumn

Protected Overloads Overrides Sub Paint(ByVal g As System.Drawing.Graphics, ByVal bounds As System.Drawing.Rectangle, ByVal source As System.Windows.Forms.CurrencyManager, ByVal rowNum As Integer, ByVal alignToRight As Boolean)

Dim parent As DataGrid = Me.DataGridTableStyle.DataGrid

Dim s As String = parent(rowNum, 0).ToString() + ((parent(rowNum, 1).ToString()) + " ").Substring(0, 2)

Dim font As Font = New Font("Arial", 8.25F)

g.DrawString(s, font, New SolidBrush(Color.Black), bounds.X, bounds.Y)

font.Dispose()

End Sub

End Class
Then I create my dataset from a table, then I add an extra column called : OptParam like this:

Mydataset.Tables("Options").Columns.Add("OptParam")

The problem: My datagrid fills all the 8 columns that are bound to my table, but leaves the new added OptParam empty with Nulls although I try to put strings in it as shown above in the PAINT method.

Also, When I try to debug, I see that the execution doesn t execute the Paint method. Weird.

Can Anybody help with this?

I apreciate.

JBelthoff
Posting Yak Master

173 Posts

Posted - 2006-05-23 : 07:49:20

From your code I don't see where you are calling the paint sub procedure. If you don't call it i will not run...

JBelthoff
Dodge, Duck, Dip, Dive & Dodge
If a man can dodge a wrench, he can dodge a ball!

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