我将其绑定在我的代码中:
<asp:DropDownList id="ddlPopulation" runat="server" DataTextField="population" DataValueField="pid" AppendDataBoundItems="True">
<asp:ListItem>Default</asp:ListItem>
如何更改后面代码中的列表项?我想对它们进行Html_Decode和Trim,然后再呈现给用户?
DataBind代码为:
StringBuilder sql = new StringBuilder();
// Define sql
sql.Append("SELECT DISTINCT datasource ");
sql.Append("FROM meta ");
sql.Append("WHERE datasource != '' ");
sql.Append("ORDER BY datasource ASC ");
IDataReader reader = SqlHelper.GetDataReader(sql.ToString());
ddlDatasources.DataSource = reader;
ddlDatasources.DataBind();
最佳答案
您可以订阅DropDownList的DataBound事件,并执行以下操作:
<asp:DropDownList id="ddlPopulation" runat="server" DataTextField="population" DataValueField="pid" AppendDataBoundItems="True" OnDataBound="ddlPopulation_DataBound">
</asp:DropDownList>
和
protected void ddlPopulation_DataBound(object sender, EventArgs e) {
foreach(ListItem Item in ddlPopulation.Items){
Item.Text = Server.HtmlDecode(Item.Text.Trim());
}
}
关于c# - 如何在ASP.NET中更改我的DropDownList中的项目,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/7071689/