Hi friends,
Using VB.Net 2005, I have a datagrid to enter purchased items with quantity and purchase price, and calculates the total cost for each row (item). It looks something like this:
RecordID-------ItemID-------Qty------UnitPrice-----------ItemTotal
1 ------------- 1000 ------- 2 --------- 10 ----------------- (20)
2 ------------- 1004 ------- 5 --------- 30 ----------------- (150)
================ etc ====================
The value in ItemTotal column is computed according to data entered in both Qty and Price (immediate computing) but I don't find a property of the column to set this formula.
I tried to use the data grid "Cell Value Changed" event in a way like this:
Dim CurRow As Int16
Dim CurQty As Int16
Dim CurPrice As Single
CurRow = Me.DataGridView.CurrentRow.Index
CurQty = IIf(IsDBNull(Me.DataGridView.Item("Qty", CurRow).Value), 0, Me.DataGridView.Item("Qty", CurRow).Value)
CurPrice = IIf(IsDBNull(Me.DataGridView.Item("UnitPrice", CurRow).Value), 0, Me.DataGridView.Item("UnitPrice", CurRow).Value)
Me.DataGridView.Item("ItemTotal", CurRow).Value = CurQty * CurPrice
First, is this the best way to do what I want?
Second, Using this code, all the steps are going correct, except the last line (in red), which gives an internal error. Each time it executes this line, it resets all variables and calls the procedure again and again infinitely.
Any idea please?