Talking about ASP. NET report Control

The project has graphical requirements for the report, and began looking for third-party chart controls on the Web. Due to the time constraints, large to determine a few candidates: one, office with the OWC control; second, ComponentOne; third, Web Chart. This article explains the ASP. NET report control.

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OWC seems to be the majority of users, but saw a netizen in the post complained about OWC in the use of the need for a license, so it will be excluded, I do not want boss in the report when the pop-up "no License Certificate" window.

Then found the componentone of the Web chart made of various, very good results. I was fascinated, the decision is it, so nonstop under the latest version of more than 100 m installation files, and spent a morning to find a registration code can be used, and then find a tutorial, ok ready, hing hurriedly began to write code. Demand is not complex, draw a number of lines on a page, according to past experience, this large-scale business sharing software on the official site to see two example at most one hour absolutely can handle. But the results made me very annoyed, the official example simple it does not provide, what Ajax, a lot of code to achieve the auxiliary effect, you want to find the core of the three or four lines to kill also can not find, as if afraid you suddenly put its example see understand. Always hated this kind of software. Then uninstall, delete ... After all, a day has passed.

Fortunately, I found the Web Chart later. The code is super concise, the effect is also good, write some simple ASP. NET report control examples for your reference:

Asp. NET report control one, line chart

2. Reference namespaces
4. Using WebChart;
8. Defines an array of colors to fill with different colors for different records when looping
10. Private string[] MyColor = new string[]
12. {
14. "Tomato",//tomatoes
16. "Black",
18. "Gold",
20. "Blue",
22. "Green",
24. "Orange",
26. "Pink",//Pink
28. "Violet",//Violet
30. "Orchid",//Light Purple
32. "Lime",//Bright green
34. "Tan",//Tan
36. "Red",
38. "Navy"//Orange
40. };
44. A static example of the simplest polyline that draws a two-point line. The actual project is then recycled.
46. private void DoIt ()
48. {
50. Create a Polyline Object
52. Linechart mychart = new Linechart ();
54. Fill a polyline with color
56. MyChart.Line.Color = Color.fromname (mycolor[0]);
58. MyChart.Fill.Color = Color.fromname (mycolor[0]);
60. Mychart.linemarker = new Diamondlinemarker (8, Color.fromname (Mycolor[0]), Color.fromname (mycolor[0]));
62. Legend Description
64. mychart.legend = "Polyline One";
66. Add the first point, the parameter is the name on the x-coordinate, and the parameter is the value on the y-coordinate.
68. MYCHART.DATA.ADD (New Chartpoint ("One", float. Parse ("100"));
70. Add a second point
72. MYCHART.DATA.ADD (New Chartpoint ("Two", float. Parse ("200"));
74. Chart is the control ID
76. THIS.CHART.CHARTS.ADD (MyChart);
78. This.chart.RedrawChart ();
80. }

Asp. NET report control two, bar chart

2. Color array
4. Private string[] MyColor = new string[]
6. {
8. "Fuchsia",
10. "Black",
12. "Gold",
14. "Blue",
16. "Hotpink",
18. "Orange",
20. "Peru",
22. "DodgerBlue",
24. "Lime",
26. "Tan",
28. "Red",
30. "Greenyellow",
32. "Darkgreen",
34. "Dimgray",
36. "Orchid"
38. };
42. Call this method to generate a bar chart
44. private void Bindchart ()
46. {
48. Get a DataTable, specific function slightly ...
50. DataTable dt = this.getdt ();
52. if (dt! = NULL)
54. {
56. if (dt. Rows.Count > 0)
58. {
60. Traverse a DataTable to generate a bar for each record
62. for (int i = 0; I < dt. Rows.Count; i++)
64. {
66. Creating objects
68. Columnchart mychart = new Columnchart ();
70. Set column width
72. MyChart.  Maxcolumnwidth = 48;
74. Color
76. MyChart.  Fill.color = Color.fromname (This.mycolor[i]);
78. Show the number on the pillar
80. MyChart.  Datalabels.visible = true;
82. Number of fonts
84. MyChart.  Datalabels.font = New Font ("Verdana", 14);
86. Add to
88. MyChart. Data.add (New Chartpoint ("", float. Parse (dt. rows[i]["Num"]. ToString ()));
90. Note
92. MyChart. Legend = dt. rows[i]["Name"].  ToString ();
94. THIS.CHART.CHARTS.ADD (MyChart);
96. }
98. Auxiliary settings
100. Background color
102. Chart.  Background.color = Color.FromArgb (165, 0, 16);
104. Chart.  Yaxisfont.forecolor = Color.FromArgb (165, 0, 16);
106. Chart.  Xaxisfont.forecolor = Color.FromArgb (165, 0, 16);
108. Internal lines
110. Chart.  Border.color = Color.FromArgb (200, 200, 200);
112. Border Style
114. Chart.  BorderStyle = BorderStyle.None;
116. Y Maximum Value
118. Double max = Double. Parse (Dt.compute ("MAX (num)", "").  ToString ());
120. Increment value
122. int Intv = 2;
126. Cases with a quantity less than 16
128. if (max < + )
130. {
132. max = 16;
134. }
136. Cases greater than 16
138. Else
140. {
142. intintv = Int. Parse (Math.ceiling (MAX/8).  ToString ());
144. Max + = Intv;
146. }
150. Set the y-axis end value
152. Chart. ycustomend = Int. Parse (max.  ToString ());
154. Y increment value
156. Chart.  Yvaluesinterval = Intv;
160. Generated
162. This.chart.RedrawChart ();
164. }
166. }
168. }

Web chart for free ASP. NET report control, need friends to go to the official address download: http://www.carlosag.net/Tools/WebChart/Default.aspx, there are many effects and code examples.

(go) About ASP. NET report Control