亚洲日韩人妻第一页,亚洲另类自拍丝袜第1页,亚洲日韩中文字幕无码一区

自己寫的一個c#winform打印類

using System;
2

using System.Collections.Generic;
3

using System.Text;
4

using System.Windows.Forms;
5

using System.Drawing.Printing;
6

using System.Drawing;
7

namespace Etaocn.Util
9

{
10

/// <summary>
11

/// 創建人賀挺
12

/// </summary>
13

public class Printer
14

{
15

private DataGridView dataview;
16

private PrintDocument printDoc;
17

//打印有效區域的寬度
18

int width;
19

int height;
20

int columns;
21

double Rate;
22

bool hasMorePage = false;
23

int currRow = 0;
24

int rowHeight = 20;
25

//打印頁數
26

int PageNumber;
27

//當前打印頁的行數
28

int pageSize = 20;
29

//當前打印的頁碼
30

int PageIndex;
31

private int PageWidth; //打印紙的寬度
33

private int PageHeight; //打印紙的高度
34

private int LeftMargin; //有效打印區距離打印紙的左邊大小
35

private int TopMargin;//有效打印區距離打印紙的上面大小
36

private int RightMargin;//有效打印區距離打印紙的右邊大小
37

private int BottomMargin;//有效打印區距離打印紙的下邊大小
38

int rows;
40

/// <summary>
42

/// 構造函數
43

/// </summary>
44

/// <param name="dataview">要打印的DateGridView</param>
45

/// <param name="printDoc">PrintDocument用于獲取打印機的設置</param>
46

public Printer(DataGridView dataview, PrintDocument printDoc)
47

{
48

this.dataview = dataview;
49

this.printDoc = printDoc;
50

PageIndex = 0;
51

//獲取打印數據的具體行數
52

this.rows = dataview.RowCount;
53

this.columns = dataview.ColumnCount;
55

//判斷打印設置是否是橫向打印
56

if (!printDoc.DefaultPageSettings.Landscape)
57

{
58

PageWidth = printDoc.DefaultPageSettings.PaperSize.Width;
60

PageHeight = printDoc.DefaultPageSettings.PaperSize.Height;
61

}
63

else
64

{
65

PageHeight = printDoc.DefaultPageSettings.PaperSize.Width;
67

PageWidth = printDoc.DefaultPageSettings.PaperSize.Height;
68

}
70

LeftMargin = printDoc.DefaultPageSettings.Margins.Left;
71

TopMargin = printDoc.DefaultPageSettings.Margins.Top;
72

RightMargin = printDoc.DefaultPageSettings.Margins.Right;
73

BottomMargin = printDoc.DefaultPageSettings.Margins.Bottom;
74

height = PageHeight - TopMargin - BottomMargin - 2;
77

width = PageWidth - LeftMargin - RightMargin - 2;
78

double tempheight = height;
80

double temprowHeight = rowHeight;
81

while (true)
82

{
83

string temp = Convert.ToString(tempheight / Math.Round(temprowHeight, 3));
84

int i = temp.IndexOf('.');
85

double tt = 100;
86

if (i != -1)
87

{
88

tt = Math.Round(Convert.ToDouble(temp.Substring(temp.IndexOf('.'))), 3);
89

}
90

if (tt <= 0.01)
91

{
92

rowHeight = Convert.ToInt32(temprowHeight);
93

break;
94

}
95

else
96

{
97

temprowHeight = temprowHeight + 0.01;
98

}
100

}
101

pageSize = height / rowHeight;
102

if ((rows + 1) <= pageSize)
103

{
104

pageSize = rows + 1;
105

PageNumber = 1;
106

}
107

else
108

{
109

PageNumber = rows / (pageSize - 1);
110

if (rows % (pageSize - 1) != 0)
111

{
112

PageNumber = PageNumber + 1;
113

}
114

115

}
116

117

118

119

}
120

121

122

123

/// <summary>
124

/// 初始化打印
125

/// </summary>
126

private void InitPrint()
127

{
128

PageIndex = PageIndex + 1;
129

if (PageIndex == PageNumber)
130

{
131

hasMorePage = false;
132

if (PageIndex != 1)
133

{
134

pageSize = rows % (pageSize - 1) + 1;
135

}
136

}
137

else
138

{
139

hasMorePage = true;
140

}
141

142

143

144

}
145

//打印頭
146

private void DrawHeader(Graphics g)
147

{
148

149

Font font = new Font("宋體", 12, FontStyle.Bold);
150

int temptop = (rowHeight / 2) + TopMargin + 1;
151

int templeft = LeftMargin + 1;
152

153

for (int i = 0; i < this.columns; i++)
154

{
155

string headString = this.dataview.Columns[i].HeaderText;
156

float fontHeight = g.MeasureString(headString, font).Height;
157

float fontwidth = g.MeasureString(headString, font).Width;
158

float temp = temptop - (fontHeight) / 3;
159

g.DrawString(headString, font, Brushes.Black, new PointF(templeft, temp));
160

templeft = templeft + (int)(this.dataview.Columns[i].Width / Rate) + 1;
161

}
162

163

}
164

//畫表格
165

private void DrawTable(Graphics g)
166

{
167

168

Rectangle border = new Rectangle(LeftMargin, TopMargin, width, (pageSize) * rowHeight);
169

g.DrawRectangle(new Pen(Brushes.Black, 2), border);
170

for (int i = 1; i < pageSize; i++)
171

{
172

if (i != 1)
173

{
174

g.DrawLine(new Pen(Brushes.Black, 1), new Point(LeftMargin + 1, (rowHeight * i) + TopMargin + 1), new Point(width + LeftMargin, (rowHeight * i) + TopMargin + 1));
175

}
176

else
177

{
178

g.DrawLine(new Pen(Brushes.Black, 2), new Point(LeftMargin + 1, (rowHeight * i) + TopMargin + 1), new Point(width + LeftMargin, (rowHeight * i) + TopMargin + 1));
179

}
180

}
181

182

//計算出列的總寬度和打印紙比率
183

Rate = Convert.ToDouble(GetDateViewWidth()) / Convert.ToDouble(width);
184

int tempLeft = LeftMargin + 1;
185

int endY = (pageSize) * rowHeight + TopMargin;
186

for (int i = 1; i < columns; i++)
187

{
188

tempLeft = tempLeft + 1 + (int)(this.dataview.Columns[i - 1].Width / Rate);
189

g.DrawLine(new Pen(Brushes.Black, 1), new Point(tempLeft, TopMargin), new Point(tempLeft, endY));
190

}
191

192

}
193

/// <summary>
194

/// 獲取打印的列的總寬度
195

/// </summary>
196

/// <returns></returns>
197

private int GetDateViewWidth()
198

{
199

int total = 0;
200

for (int i = 0; i < this.columns; i++)
201

{
202

total = total + this.dataview.Columns[i].Width;
203

}
204

return total;
205

}
206

207

//打印行數據
208

private void DrawRows(Graphics g)
209

{
210

211

Font font = new Font("宋體", 12, FontStyle.Regular);
212

int temptop = (rowHeight / 2) + TopMargin + 1 + rowHeight;
213

214

215

for (int i = currRow; i < pageSize + currRow - 1; i++)
216

{
217

int templeft = LeftMargin + 1;
218

for (int j = 0; j < columns; j++)
219

{
220

string headString = this.dataview.Rows[i].Cells[j].Value.ToString();
221

float fontHeight = g.MeasureString(headString, font).Height;
222

float fontwidth = g.MeasureString(headString, font).Width;
223

float temp = temptop - (fontHeight) / 3;
224

while (true)
225

{
226

if (fontwidth <= (int)(this.dataview.Columns[j].Width / Rate))
227

{
228

break;
229

}
230

else
231

{
232

headString = headString.Substring(0, headString.Length - 1);
233

fontwidth = g.MeasureString(headString, font).Width;
234

}
235

}
236

g.DrawString(headString, font, Brushes.Black, new PointF(templeft, temp));
237

238

templeft = templeft + (int)(this.dataview.Columns[j].Width / Rate) + 1;
239

}
240

241

temptop = temptop + rowHeight;
242

243

244

}
245

currRow = pageSize + currRow - 1;
246

247

}
248

249

/// <summary>
250

/// 在PrintDocument中的PrintPage方法中調用
251

/// </summary>
252

/// <param name="g">傳入PrintPage中PrintPageEventArgs中的Graphics</param>
253

/// <returns>是否還有打印頁有返回true，無則返回false</returns>
254

public bool Print(Graphics g)
255

{
256

InitPrint();
257

DrawTable(g);
258

DrawHeader(g);
259

DrawRows(g);
260

261

//打印頁碼
262

string pagestr = PageIndex + " / " + PageNumber;
263

Font font = new Font("宋體", 12, FontStyle.Regular);
264

g.DrawString(pagestr, font, Brushes.Black, new PointF((PageWidth / 2) - g.MeasureString(pagestr, font).Width, PageHeight - (BottomMargin / 2) - g.MeasureString(pagestr, font).Height));
265

//打印查詢的功能項名稱
266

string temp = dataview.Tag.ToString() + " " + DateTime.Now.ToString("yyyy-MM-dd HH:mm");
267

g.DrawString(temp, font, Brushes.Black, new PointF(PageWidth - 5 - g.MeasureString(temp, font).Width, PageHeight - 5 - g.MeasureString(temp, font).Height));
268

return hasMorePage;
269

}
270

271

272

273

274

275

276

}
277

}
278

posted on 2009-09-19 09:46 賀挺閱讀(8502) 評論(8) 編輯收藏所屬分類: c#范例

調用你的方法但是到這一行就顯示了“未將對象引用到實例化的錯誤” 。
string temp = dataview.Tag.ToString() + " " + DateTime.Now.ToString("yyyy-MM-dd HH:mm");
267 g.DrawString(temp, font, Brushes.Black, new PointF(PageWidth - 5 - g.MeasureString(temp, font).Width, PageHeight - 5 - g.MeasureString(temp, font).Height));“

dataview.Tag為null 回復更多評論

新用戶注冊刷新評論列表


只有注冊用戶登錄后才能發表評論。




網站導航: 博客園 IT新聞 Chat2DB C++博客博問管理
相關文章: AxWindowsMediaPlayer的詳細用法 C# 與 C++ 數據類型比較及結構體轉換自己寫的一個c#winform打印類 c# winform 打印類

heting

常用鏈接

留言簿(3)

隨筆分類

隨筆檔案

文章檔案

搜索

最新評論

閱讀排行榜

評論排行榜

評論