如何在文本框中接受浮点值? [英] how to accept a float value in textbox?

问题描述

如何在文本框中接受浮点值?

这意味着仅接受数字值和''.''值

在桌面应用程序中

解决方案

尝试此 [ ^ ].

使用比较验证器

< asp:textbox id = "  runat = "  xmlns:asp = " #unknown" </  asp:textbox  > 
< asp:comparevalidator id = "  runat =  "  controltovalidate = "  运算符 = "  type = "  errormessage = " 值必须为浮点数" xmlns:asp =  #未知" /> 

在该文本框的前面放置一个正则表达式，并控制该文本框的位置.
goto属性并执行此操作....
验证表达式:^([0-9].[0-9])*

how to accept a float value in textbox?

that means accept only numeric values and ''.'' value

in desktop application

解决方案

Try this[^].

Use Compare validator

<asp:textbox id="textbox11" runat="server" xmlns:asp="#unknown"></asp:textbox>
<asp:comparevalidator id="intValidator" runat="server" controltovalidate="textbox1" operator="DataTypeCheck" type="float" errormessage="Value must be float" xmlns:asp="#unknown" />

put one regular expression in front of that textbox and control that text box which ever it is.
goto properties and do this....
validate expression: ^([0-9].[0-9])*

这篇关于如何在文本框中接受浮点值?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！