是否可以在下拉菜单中提高文本框的验证器已更改

发布于 2024-10-23 14:51:35 字数 652 浏览 1 评论 0原文

大家好，通常我们可以在单击按钮或控件留空时处理验证器。我的要求如下

我有一个文本框和一个下拉列表，其中下拉列表与数据库值绑定如下

  mlocal_strStoredProcName = USADAO.StoredProcNames.PayFrequency_uspPayFrequencySelect;
  oEmployee.Select(out mlocal_ds, mlocal_strStoredProcName);
  ddlPaymentType.DataSource = mlocal_ds;
  ddlPaymentType.DataTextField = TablesAndColumns.tblPayFrequency_PayFrequencyDesc;
  ddlPaymentType.DataValueField = TablesAndColumns.tblPayFrequency_PayFrequencyTypeID;
  ddlPaymentType.DataBind();
  ddlPaymentType.Items.Insert(0, "Select");
  mlocal_ds.Clear();

我需要的是，如果文本框在 ddlPaymentType_SelectedIndexChanged 上留空，我想触发验证器是如果可以的话可以做吗任何人都可以给我一个想法

原文

Hi all generally we can handle validators on Button click or when the control is left empty. I am having my requirement as follows

I am having a text box and a drop down where the drop down list is binded with database values as follows

  mlocal_strStoredProcName = USADAO.StoredProcNames.PayFrequency_uspPayFrequencySelect;
  oEmployee.Select(out mlocal_ds, mlocal_strStoredProcName);
  ddlPaymentType.DataSource = mlocal_ds;
  ddlPaymentType.DataTextField = TablesAndColumns.tblPayFrequency_PayFrequencyDesc;
  ddlPaymentType.DataValueField = TablesAndColumns.tblPayFrequency_PayFrequencyTypeID;
  ddlPaymentType.DataBind();
  ddlPaymentType.Items.Insert(0, "Select");
  mlocal_ds.Clear();

What i need is if the text box is left empty on ddlPaymentType_SelectedIndexChanged i would like to fire the validator is it possible to do if so can any one give me an idea

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