用斜线'/'拆分字符串 [英] Split string by slash '/'

问题描述

protected void OnRowDataBound123(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        TableCell statusCell1 = e.Row.Cells[1];
        if (statusCell1.Text != "-")
        {
            string[] a = statusCell1.Text.Split('/');
            if (a[0] != a[1])
            {
                statusCell1.ForeColor = System.Drawing.Color.Red;
            }
        }
    }
}

我正在使用此功能gridview onrowdatabound，如果/之前和之后的数据不匹配则为红色文本。

我的样本数据：

5/6

11 / 11

-

1/3





但不断收到错误：

i'm using this function in gridview onrowdatabound ,if data before and after / is not match then red color text.
my sample data :
5/6
11/11
-
1/3


but keep getting error :

System.IndexOutOfRangeException: Index was outside the bounds of the array.

我有什么试过：

What I have tried:

protected void OnRowDataBound123(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        TableCell statusCell1 = e.Row.Cells[1];
        if (statusCell1.Text != "-")
        {
            string[] a = statusCell1.Text.Split('/');
            if (a[0] != a[1])
            {
                statusCell1.ForeColor = System.Drawing.Color.Red;
            }
        }
    }
}

推荐答案

您好，

只需检查if语句中返回的数组的长度。

Hello ,
Just check the length of the array returned in your if statement .

 string[] a = statusCell1.Text.Split('/');
if(a.Length > 1)
{
//do other stuff
}

异常到来作为返回大小小于你正在访问的索引的数组。

这里你正在访问数组元素1然后数组中必须至少有2个元素，因为数组索引从0开始。

谢谢

the exception comes as returning array of size less than the index you are accessing with.
Here you are accessing the array element 1 then there must be atleast 2 elements in the array as array index starts with 0 .
Thanks

这可能是因为你有一个或多个条目不是所需的格式。

只需添加支票为了你继续比较。

类似于 -

That could be because you have one or more entries which is not in the desired format.
Just add a check for you go ahead to compare.
Something like-

if(a.Length>1)
{
   if (a[0] != a[1])
   {
      statusCell1.ForeColor = System.Drawing.Color.Red;
   }
}

您还可以在调试时监视值，看看值是多少你得到了。



希望，它有帮助：）

You could also put a watch on the values while debugging to see what are the values you are getting.

Hope, it helps :)

这篇关于用斜线'/'拆分字符串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！