WPF-如何将组合框选择的值添加到数据库

Question

tblProd p = new tblProd();
p.categoryname=cb_category.SelectedValue.ToString();

I get the string as " Demo.tbl_category " I get the name of the table as string instead of a category name. I have two properties in my category model category name and description. I have bound the combobox source to observablecollection of category and I have categoryname as the displaymemberpath in combobox .

plz help me.thanks in advance.

I m using linq .

Answer 1

You are getting an instance of the object and its ToString .

SelectedValue contains an instance of the object tbl_category

Try changing to.

p.categoryname=((tbl_category)cb_category.SelectedValue).categoryname;

or

p.categoryname=cb_category.SelectedValue.categoryname;