Question

如何在Repeater控件中，执行textbox的ontextchanged事件？

页面中，textbox的代码：
<asp:TextBox ID="P_Quantity" runat="server" CssClass="quantity_txt" Text='<%# Eval("Quantity") %>' ontextchanged="P_Q_TextChanged" ToolTip='<%# Eval("SCId") %>' AutoPostBack="true" ></asp:TextBox>

后台，ontextchanged事件代码:
protected void P_Q_TextChanged(object sender, EventArgs e)
{
TextBox textBox = (TextBox)sender;
RepeaterItem repeaterItem = (RepeaterItem)textBox.Parent;
TextBox txtId = (TextBox)repeaterItem.FindControl("P_Quantity");

string str = "Data Source=.;Initial Catalog=EB_SHOP_DB;User ID=sa;Password=123456;";
SqlConnection conn = new SqlConnection(str);
try
{
conn.Open();
str = "update ShoppingCart set Quantity='" + txtId.Text + "',TotalPrice=" + txtId.Text + "*Price where SCId='" + txtId.ToolTip + "'";
SqlCommand cmd = new SqlCommand(str, conn);
cmd.ExecuteNonQuery();
cmd.Dispose();
ShowProductList();
}
catch
{
this.ClientScript.RegisterStartupScript(GetType(), "", "<script>alert('修改购买数量失败')</script>");
}
finally
{
conn.Close();
conn.Dispose();
}
}

现在的问题是，我在textbox内输入数据后，ontextchanged事件里的代码并不执行。而且，页面中，textbox的值又会变成我输入之前的数据。请问高手怎么解决。

Answer 1

</form></body></html>程序如上，中textbox服务器控件不能响应回车,单击,改变,.事件(服务器事件) 要想v

Answer 2

PageLoad事件里加上if(!IsPostBack)
将ontextchanged事件里代码放到Repeater1_ItemCommand试试