如何增加textboxvalue [英] how to increment textboxvalue

问题描述

嗨我想要修改texbox值

喜欢

hi i want incement texbox value
like

gpno=txtbox.text+1;

有可能请帮助我

it is possible pls help me

推荐答案

将文本转换为数值，然后再添加一个

http://msdn.microsoft.com/en-us/library/f02979c7.aspx [ ^ ]



看起来像：

Convert the text to a numerical value, and than add one
http://msdn.microsoft.com/en-us/library/f02979c7.aspx[^]

Would look something like:

Int32 number = new Int32();
if Int32.TryParse(txtbox.text,number) then
{
//it is a number
gpon = number + 1;
}
else
{
//The value is not a number
}

你应该先尝试转换 TextBox.Text 属性从其自己的字符串输入到 int 类型：

You should first try to convert the TextBox.Text property from its own string type to int type:

int gpno;
if (int32.TryParse(txtbox.Text, out gpno) == false)
{
  // handle error: Text content does NOT represent a valid int
}
else
{ // succesful parse, here you may increment the value.
  gpno++;
}

是的你可以

yes you can

gpno = Convert.Toint32(txtbox1.text)+1;

这篇关于如何增加textboxvalue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！