Question

我有三个文本框txtOpeningAdv，TxtAdvanceDeducted，TxtClosingAdvance的网格视图.....使用TxtAdvanceDeducted上的KeyUp函数我计算TxtClosingAdvance。 ..我的页面在TxtClosingAdvance文本框中显示值...但是当我使用c#访问它时，它会给我错误Input String was not in a correct format ...

当我通过萤火虫检查时，

<input type="text" class="text_box_height_14_width_50" id="ctl00_ContentPlaceHolder1_gridEmployee_ctl02_txtOpeningAdv" readonly="readonly" value="500.00" name="ctl00$ContentPlaceHolder1$gridEmployee$ctl02$txtOpeningAdv">

<input type="text" onkeyup="totalAmount(event,this);" autocomplete="off" class="text_box_height_14_width_50" id="ctl00_ContentPlaceHolder1_gridEmployee_ctl02_TxtAdvanceDeducted" name="ctl00$ContentPlaceHolder1$gridEmployee$ctl02$TxtAdvanceDeducted">

<input type="text" class="text_box_height_14_width_50" id="ctl00_ContentPlaceHolder1_gridEmployee_ctl02_TxtClosingAdvance" readonly="readonly" name="ctl00$ContentPlaceHolder1$gridEmployee$ctl02$TxtClosingAdvance">

这是我的gridview， alt text http://img90.imageshack.us/img90/7237/gridemp.jpg

我的c＃代码，

foreach (GridViewRow row in gridEmployee.Rows) 
        {
            if (row.RowType == DataControlRowType.DataRow)
            {
                DataRow dr = dt.NewRow();
                dr["EmpId"] = Convert.ToInt64(((HiddenField)row.Cells[0].FindControl("HiddenId")).Value);
                dr["FromDate"] = Convert.ToDateTime(GetMonthNumberFromAbbreviation(fromdate[1].ToString()) + '/' + fromdate[0].ToString() + '/' + fromdate[2].ToString());
                dr["ToDate"] = Convert.ToDateTime(GetMonthNumberFromAbbreviation(todate[1].ToString()) + '/' + todate[0].ToString() + '/' + todate[2].ToString());
                dr["DaysPresent"] = Convert.ToDecimal(((TextBox)row.Cells[3].FindControl("TxtDaysPresent")).Text);//(row.Cells[4].Text);
                dr["OpeningAdvance"] = Convert.ToDouble(((TextBox)row.Cells[4].FindControl("txtOpeningAdv")).Text);
                dr["AdvanceDeducted"] = Convert.ToDouble(((TextBox)row.Cells[5].FindControl("TxtAdvanceDeducted")).Text);
                dr["RemainingAdvance"] = Convert.ToDouble(((TextBox)row.Cells[6].FindControl("TxtClosingAdvance")).Text);
                dr["SalaryGiven"] = Convert.ToDouble(((TextBox)row.Cells[7].FindControl("TxtSalary")).Text);
                dr["CreatedDate"] = System.DateTime.Now;
                dt.Rows.Add(dr);
            }
        }

错误在行， dr["RemainingAdvance"] = Convert.ToDouble(((TextBox)row.Cells[6].FindControl("TxtClosingAdvance")).Text);

Input string was not in a correct format

但是我的gridview有TxtClosingAdvance="400.00" ...它是一个只读文本框，其值将放在TxtAdvanceDeducted onkeyup event javascript ...

Answer 1

作为猜测，您的字符串值为空或包含不需要的符号，如果它包含400.00而不是因为在服务器的区域设置中引起错误，请尝试检查((TextBox)row.Cells[6].FindControl("TxtClosingAdvance")).Text的值“。”不是小数符号。如果它为空，则表示ASP.NET无法识别您的JavaScript更改。出于安全原因，ASP.NET会在响应时从VIEWSTATE恢复不可编辑的控件值，尝试通过设置EnableViewState = false来禁用该控件的VIEWSTATE。

修改

顺便提一下，有一个ReadOnly TextBox问题已经讨论过here

希望这有帮助

无法使用c＃访问使用javascript设置的文本框值

1 个答案: