Hi my fellows! My problem is that I want to represent a FormTreeControl's data in an SSRS report. I generate the tree's lines with special table characters like this: ─┬11110100 ├─┬ 11110100 │ └─┬ 11110100 │ └─ 11110100 ├─┬ 11110100 │ └─ 11110100 I store the lines in a regular table line by line. In the report the line by line display is not solvable for me, because there is a little gap in the top of the cells, and it foul up the continous appearance of the tree. So I imagined that I aggregate the lines into a single global variable, and display it in a textbox. I created a Row Group to a Tablix, and used the RunningValue method to reach the single lines one by one in the table. I wrote 2 data methods for concatenation and display: public partial class InventTrackingReport_INS { public static string Lines = ""; [DataMethod(), PermissionSet(SecurityAction.Assert, Name = "FullTrust")] public static int ConcatenateLines(string line, int LineNum) { if (Lines.Length > 0) Lines += "\n"; Lines += line; return LineNum; } [DataMethod(), PermissionSet(SecurityAction.Assert, Name = "FullTrust")] public static string GetLines() { return Lines; } } I call the first in tablix aggrgation like this: =RunningValue(ConcatenateLines(Fields!Line.Value, Fields!LineNum.Value), Sum, "InventTrackingDetails") And I call the second one in the textbox, in which I want to display the result. The solution is works fine at the first time, but after second run, the report shows all previous results, that it creates in previous runs. I see all previously generated trees before the new tree in the report, despite the table stores the correct data. I tried everything... query, DP class, Tmp table, regular table, but the result is the same. I think that is a weird cache problem or something like this.
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