Question: how to get the selected value of dropdown in c# asp.net?
Answer: //Reference the DropDownList.
DropDownList dropDownList = sender as DropDownList;
//Get the ID of the DropDownList.
string id = dropDownList.ID;
//Display the Selected Text of DropDownList.
ClientScript.RegisterClientScriptBlock(this.GetType(), "alert", "alert('" + dropDownList.SelectedItem.Text + "');", true);
}