分割逗号分隔的字符串得到“”

Question

I have a comma separated string array like

,/pictures/222.jpg,/pictures/inbannerbg2.jpg

While I split the array I am getting a " " value first.and it insert in to the table as null value. How can we remove this.

here is my code

build to comma sepparated array

Session["image"] = Session["image"] + ",/pictures/" + filename;
        img = Session["image"].ToString();

Split Array

img = Convert.ToString(Session["image"]);
        string[] img_split = img.Split(',');

Thanks in advance for help

Answer 1

Use the method overload that allows you to specify a StringSplitOptions :

string[] img_split = img.Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries);

You can read about it in the docs on MSDN.

Since your string has a comma at the beginning of it, the first element of the array returned by Split() will be an empty string. Here we tell it to drop the empty string.