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I still got problem. When I use cboProductTypeID.SelectedValue and cick "add" button, it will add to DB. But it display "Object reference not set to an instance of an object". Can you help me? :(

Hi I want to use combo box from material type. When I want to add it to inventory table. It error because this item not corresponding item. It seems to be miss "Material" field but I check it correctly. Ex. rs.field("MaterialID").value = GetMaterialID(cboMaterialID.text) function...

I fix it by using form.showDialog() for VB.net.

I'm sorry. Field is Yes/No and use format True/False

I want to lock the position of my program. This makes user cannot move that windows to anywhere else. Does it has any command like vbmodal (vb 6) in vb.net?

I use Access for DB and field use true/false. Thanks... Totti

I get problem that I want to display one field in datagrid. It is boolean field. When I run code, it display true and false on that column. But I want to chage word "True" to be "Show" and "False" to be hide. Do you have any idea for solve it? Thanks...