[英]how to get value of a selected Item in drop down list?
我需要從asp.net的下拉列表中的選定項目中選擇值。 在此代碼中:
protected void EducationFeildsList_SelectedIndexChanged(object sender, EventArgs e)
{
int index = Convert.ToInt32(EducationFeildsList.SelectedIndex);
Label1.Text = index.ToString(CultureInfo.InvariantCulture);
}
但是似乎無法讀取該值,因此label1.text未被更改。 在這種情況下,如何獲取所選項目的正確值?
protected void EducationFeildsList_SelectedIndexChanged(object sender, EventArgs e)
{
If (!IsPostback)
{
Label1.Text = Dropdownlist1.Selectedvalue;
}
}
將DDL的AutoPosback屬性設置為TRUE
使用解析
protected void EducationFeildsList_SelectedIndexChanged(object sender, EventArgs e)
{
int index = int.Parse(EducationFeildsList.SelectedIndex);
Label1.Text = index.ToString(CultureInfo.InvariantCulture);
}
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