I'm appending string variable text, after appending a line throws System.OutOfMemoryException? Can any one explain why it is throwing error.
str+="something Text"
str+="something Text"
and lastly I assign it to a lable text
When I assign the value of str it throws exception.....
I think you have two problems:
<asp:Label> for the thing you're doing. Try <asp:Literal> instead or provide us with more information on exactly why you're using a label and what it is you want to accomplish (visually, or in HTML terms).System.Text.StringBuilder and not concatenate it with +=. This will improve performance and reduce memory usage, but since your exception seems to be occurring on label.Text = str;, just replacing the concatenation with StringBuilder won't solve the problem.Say you have this ASP.NET markup:
<asp:Label id="MyLabel" runat="server" />
and this C# codebehind:
string str = String.Empty;
str += "Some text "
str += "some more text";
MyLabel.Text = str;
Try to replace both of these with:
<asp:Literal id="MyLiteral" runat="server" />
and
StringBuilder sb = new StringBuilder();
sb.Append("Some text ");
sb.Append("some more text");
MyLiteral.Text = sb.ToString();
Another option is to write directly to the output stream with Response.Write(). Without knowing exactly what it is you're trying to accomplish and why you have such a large string that you end up with an OutOfMemoryException, it's hard to help you any further than this, I'm afraid.
Probably you're trying to concatenate a lot of strings. Each time you change/concat strings a new string will be produced, because string is an immutable type.
Try using StringBuider to get your big-big string :)
var builder = new StringBuilder();
builder.Append("something Text");
builder.Append("something else");
builder.Append("etc.");
builder.ToString();
stringbuilderfor appending text....