方法不适用于combox事件选择的索引更改 [英] method not working on combox event selected index change

问题描述

表格中两个组合框绑定的两种方法

two method for two combobox binding on a form

private void cbBookBinding()
{
bHadithBook.DataSource = objSearch.SelectHadithBookName();
            cbHadithBook.DisplayMember = "Book_English_Name";
            cbHadithBook.ValueMember= "Book_Id";
           

            objSearch.HadithBookNo = Convert.ToInt32(cbHadithBook.SelectedValue);
}
 private void cbHadtihBaabBinding()
{

            cbBaab.DataSource = objSearch.SelectHadithBaabEnglish();
            cbBaab.DisplayMember = "[Baab_English_Name]";
            cbBaab.ValueMember = "[Baab_Id]";
           
            objSearch.HadithBookId = Convert.ToInt32(cbBaab.SelectedValue);



            dgvHadith.DataSource = objSearch.SelectHadithText();
}

i将两种方法都放在事件上

1：组合框选择的索引更改

和

2：对于加载

这两种方法在Form Load事件后面找工作

但是在组合框上选择了索引更改这个不管用。即使我尝试从combbox中选择另一个选项，但首先选择的选项仍然在combobx中选中。 combox和gridview没有任何变化。

i placed both method on event
1: combobox selected index change
and
2: For Load
this two method working find behind Form Load event
but on combobox selected index change this is not working. even i try to select another option from combbox but the one selected first remain selected in combobx. nothing change in combox and on gridview.

推荐答案

检查控件的asp页面属性，对于dropdownlist put AutoPostback =True

check for asp page property for control, for dropdownlist put AutoPostback="True"

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