View images + Text in ComboBox

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View images + Text in ComboBox

Author	Message
Mimouni Mohamed	Mimouni Mohamed posted 11 Years Ago Topic Details Share Topic
Group: StrataFrame Users Posts: 0, Visits: 50	Hello, I try to put images + text in a ComboBox. I tried with a ComboBox DrawItem but it does not work so I searched the internet and I found this code: Private Sub Ville_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load Me.LIB_PAYS.DrawMode = DrawMode.OwnerDrawVariable Me.LIB_PAYS.DropDownStyle = ComboBoxStyle.DropDownList End Sub Private Sub LIB_PAYS_DrawItem(sender As Object, e As System.Windows.Forms.DrawItemEventArgs) Handles LIB_PAYS.DrawItem If e.Index <> -1 Then e.Graphics.DrawImage(Me.ImageList1.Images(e.Index), e.Bounds.Left, e.Bounds.Top) e.Graphics.DrawString(Me.LIB_PAYS.Items(e.Index).ToString, _ Me.LIB_PAYS.Font, _ System.Drawing.Brushes.Black, _ New RectangleF(e.Bounds.X + 15, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height)) e.DrawFocusRectangle() End If End Sub I know that my ComboBox populated with BO but it still not working so I turn to you to find out how? is what my code or code that I found wrong? Here is the result that shows me: cordially Mimouni
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StrataFrame Team	S StrataFrame Team posted 11 Years Ago Post Details Share Post
S Group: StrataFrame Developers Posts: 3K, Visits: 2.5K	Doing owner draw overrides all of the formatting logic for the combo box. When you use the SF list population, we set the DataSource as a DataTable and set the DisplayMember and ValueMember. The DisplayMember is basically ignored when you turn on owner draw, so you have to do it all manually. You're really close, but you're problem is here: e.Graphics.DrawString(Me.LIB_PAYS.Items(e.Index).ToString, _ Me.LIB_PAYS.Font, _ System.Drawing.Brushes.Black, _ New RectangleF(e.Bounds.X + 15, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height)) The items collection is just returning a System.Data.DataRow, and it's ToString() method just returns "System.Data.DataRow". You need to cast it as a data row, pull your field, then to string the field value: e.Graphics.DrawString(CType(Me.LIB_PAYS.Items(e.Index), DataRow)("FieldName").ToString, _ Me.LIB_PAYS.Font, _ System.Drawing.Brushes.Black, _ New RectangleF(e.Bounds.X + 15, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height)) Replace "FieldName" with what you need and you should be good to go.
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Mimouni Mohamed	Mimouni Mohamed posted 11 Years Ago Post Details Share Post
Group: StrataFrame Users Posts: 0, Visits: 50	Ben, thank you for the reply. I applied your solution, I get an error : Unable to cast object of type 'System.Data.DataRowView' to type 'System.Data.DataRow'. I changed DataRow and DataRowView by in this case he displays another message : LIB_PAYS is not a DataColumn DataRelation or for the table.
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StrataFrame Team	S StrataFrame Team posted 11 Years Ago Post Details Share Post
S Group: StrataFrame Developers Posts: 3K, Visits: 2.5K	You're right, the IListSource.GetList() of the DataTable returns the DataView. And if you're building the combo box off of the SF list population, we create the table with 2 or 3 values (depending upon whether you have a columns in your drop down): display \| dropdown \| value So, try this: e.Graphics.DrawString(CType(Me.LIB_PAYS.Items(e.Index), DataRowView)("display").ToString, _ Me.LIB_PAYS.Font, _ System.Drawing.Brushes.Black, _ New RectangleF(e.Bounds.X + 15, e.Bounds.Y, e.Bounds.Width, e.Bounds.Height))
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Mimouni Mohamed	Mimouni Mohamed posted 11 Years Ago Post Details Share Post
Group: StrataFrame Users Posts: 0, Visits: 50	Think you very match ben
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