后台判断格式是否想要的类型可使用 try{} catch{}捕获错误,

最新推荐文章于 2022-09-12 01:46:50 发布

原创最新推荐文章于 2022-09-12 01:46:50 发布 · 9.7k 阅读

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#textbox #string #date #float #list #button

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本文介绍了一个ASP.NET中GridView控件RowUpdating事件处理的示例代码，演示了如何从GridView获取用户编辑的数据，并进行数据验证及更新操作。

    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {

   shipped_list rowupdat = new shipped_list();
   string Ror_id = ((Label)this.GridView1.Rows[e.RowIndex].FindControl("ID_R")).Text.ToString();//
   string Price = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Price")).Text.ToString();//
   string Invoice_no = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Invoice_no")).Text.ToString();//

string Invoice_date = ((TextBox)GridView1.Rows[e.RowIndex].FindControl("Invoice_date")).Text.ToString();

string TKUQ_PO = ((TextBox)this.GridView1.Rows[e.RowIndex].FindControl("TKUQ_PO")).Text.ToString();//

   string PayDate = ((TextBox)this.GridView1.Rows[e.RowIndex].FindControl("PayDate")).Text.ToString();//
   Hidden_num.Value = Price.ToString().Trim();
    //ScriptManager.RegisterStartupScript(this, typeof(string), "js", "type_button2()", true);
    if (Price == "")
        { Price = "0"; }
        string type_1 = "RowUpdat";

        float Price_s = 0;
        try
        {
            Price_s = float.Parse(Price);

            if (rowupdat.RowUpdat_se(Invoice_date, Price_s, Invoice_no, TKUQ_PO, PayDate, Ror_id, type_1, type_1))
            {
                ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "alert", " <script>window.alert('更新成功!'); </script>", false);
            }
            else
            {
                ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "alert", " <script>window.alert('更新失败!'); </script>", false);
            }

        }
        catch
        {
            ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "alert", " <script>window.alert('更新失败!单价格式错误!'); </script>", false); ;
        }

        float Price_s = 0;
        try
        {
            Price_s = float.Parse(Price);        }
        catch
        {
            ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "alert", " <script>window.alert('更新失败!单价为数字类型错误!'); </script>", false); ;
        }