能夠分頁顯示的Label控制項

2021-06-01 09:13:56 字數 4372 閱讀 4343

話說分頁這玩意在開發中可是相當的常見。網上到處都是分頁的資料。可是在winform中要做到分頁顯示文字內容就沒有那麼容易。而且不能使用一些可以分頁的控制項,比較dategridview等。只好在已有的**基礎上開發了乙個具備分頁功能,並且可以改變行間距的label。

**寫的比較長,可以拷貝下來直接使用,體驗下。

using system;

using system.componentmodel;

using system.collections.generic;

using system.diagnostics;

using system.text;

using system.drawing;

using system.text.regularexpressions;

public partial class labelex : system.windows.forms.label

set}

[descriptionattribute("label在容器下端顯示不了時附加高度")]

public int attachheight

set}

[descriptionattribute("label所在的容器的高度")]

public int containerheight  

set}

[descriptionattribute("獲取或設定行距")]

public int linedistance

set}

[descriptionattribute("頁碼,在翻頁模式下有用")]

public int pageno

set}

}public labelex()

: base()

void labelex_fontchanged(object sender, eventargs e)

void labelex_sizechanged(object sender, eventargs e)

public labelex(icontainer container)

[descriptionattribute("頁面高度,在翻頁模式下有用")]

public int pageheight

set}

[descriptionattribute("呈現模式")]

public dispmode displaymode

set

}[descriptionattribute("獲取文字高度")]

public int fheight

}[descriptionattribute("獲取行高")]

public int lineheight

}public int sectionheight

}[descriptionattribute("設定或獲取段落間距")]

public int secdistance

set

}public new int height

set}

public override string text

setelse}}

public bool isend

}protected void changed(font ft, int iwidth, string value)

nrline = value.split(new string[1] , stringsplitoptions.removeemptyentries);

section = nrline.length;

nrlinepos = new string[section];

sizef sf1, sf2;

string temps, tempt;

string drawstring;

int tempos, ipos;

for (int i = 0; i < section; i++)

drawstring = nrline[i];

nrlinepos[i] = "";

while (drawstring.length > searchpos)

}if (!isfind)

}ipos += drawstring.length;

nrlinepos[i] += "," + ipos.tostring();

iheight++;

//templine = (int)(sf1.width - 1) / this.width + 1;                        

//iheight += templine;}}

if (dm == dispmode.none)

if (this.containerheight == 0)

else

string strlinepos = nrlinepos[i].trimstart(',');

ilinenum = strlinepos.split(',').length;

for (int j = 0; j < ilinenum; j++)

//if (this.top < 0)

//int reltop = itop % containerheight;

int tempheight = 0;

if (j == ilinenum - 1)

else

if (tempheight > containerheight)

//tmpheight += tempheight - containerheight + 2;

}if (j == ilinenum - 1)

else}}

this.height = tmpheight;

}//add by kevin gao 20110511 --------------end}}

protected override void onpaint(system.windows.forms.painteventargs e)

first = 0;

substr = nrline[i];

if (nrlinepos[i] != null) tmpstr = nrlinepos[i].trimstart(',');

midstr = substr.substring(first);

if (tmpstr != "")

else

int reltop = itop % containerheight;

int tempheight = 0;

if (j == idxs.length - 1)

else

if (tempheight > containerheight)

else

}else

}//add by kevin gao 20110511 ---end

drawfont, drawbrush, x, convert.toint16(htheight), drawformat);

}else

return;

}prelinestr = midstr;

ispagestart = true;

htheight = 0;

}else

ispagestart = false;

e.graphics.drawstring(midstr, drawfont, drawbrush, x, convert.toint16(htheight), drawformat);

}if (i == section - 1 && j == idxs.length - 1)}}

if (j == idxs.length - 1)

else

first = idx;}}

}}///

/// 清除文字中的html標籤

///

/// 要替換的標籤正規表示式

/// 替換為的內容

/// 要替換的內容

///

private string zxj_replacehtml(string patrn, string strrep, string content)

regex rgex = new regex(patrn, regexoptions.ignorecase);

string strtxt = rgex.replace(content, strrep);

return strtxt;

}///

/// 清除文字中html的標籤

///

///

///

private string clearhtml(string content)

}///

/// 顯示模式,分為全顯示和分頁顯示兩種

///

public enum dispmode

能夠分頁顯示的Label控制項

話說分頁這玩意在開發中可是相當的常見。網上到處都是分頁的資料。可是在winform中要做到分頁顯示文字內容就沒有那麼容易。而且不能使用一些可以分頁的控制項,比較dategridview等。只好在已有的 基礎上開發了乙個具備分頁功能,並且可以改變行間距的label。寫的比較長,可以拷貝下來直接使用,體...

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