本文介绍了文本框的文本验证的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
大家好!
在这里,我仅对字母和数字进行重排文本框
hi to all!
here i make to restrivt textbox for only alphabets and numbers
Regex regex = new Regex("^[a-zA-Z0-9]*$");
但我想在它们之间添加单个空格以及该怎么做
这样我就可以写这样的字符串
but i want to add single space between them as well how to do
so that i can write string like this
asd sdf
ah klh ksd ldf lk
lk djfg jbp
但不是这样的lkdjfg djgldfjg
我的意思是说他们之间只有一个空格
but not like this lkdjfg djgldfjg
i mean to say only single space between them
推荐答案
但我想在它们之间添加单个空格以及该怎么做
这样我就可以写这样的字符串
but i want to add single space between them as well how to do
so that i can write string like this
asd sdf
ah klh ksd ldf lk
lk djfg jbp
但不是这样的lkdjfg djgldfjg
我的意思是说它们之间只有一个空格
but not like this lkdjfg djgldfjg
i mean to say only single space between them
protected void btn_Click(object sender, EventArgs e)
{
string t = txt.Text.Trim();
bool test = true;
for (int i = 0; i < t.Length; i++)
{
if (t[i].ToString().Equals(" ") && t[i - 1].ToString() == " ")
{
test = false;
break;
}
}
if (test)
Response.Write("Valid");
else
Response.Write("INValid");
}
Regex regex = new Regex("^[a-zA-Z0-9 ]*
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