c#获取字符串宽度(像数方法)

private ArrayList GetSeparateSubString(string mOrigianlString, float subStringCharNumber)

{

ArrayList resultList = new ArrayList();

string tempStr = mOrigianlString;

float charNumber = subStringCharNumber;

float totalWidth = 0f;

string mSubStr = "";

for (int i = 0; i < tempStr.Length; i++)

{

string mChar = tempStr.Substring(i, 1);

Graphics grap = this.CreateGraphics();

grap.PageUnit = GraphicsUnit.Pixel;

Font f = new Font("ＭＳ Ｐ明朝",9);

float fWidth = grap.MeasureString(mChar, f).Width;

totalWidth += fWidth;

if (totalWidth - fWidth / 2 > charNumber ) //球越过门线没有？

{

resultList.Add(mSubStr);

if (i == tempStr.Length - 1)

{

mSubStr = mChar;

resultList.Add(mSubStr);

}

else

{

totalWidth = fWidth;

mSubStr = mChar;

}

}

else if (totalWidth == charNumber)

{

mSubStr += mChar;

resultList.Add(mSubStr);

totalWidth = 0;

mSubStr = "";

}

else if (i == tempStr.Length - 1)

{

mSubStr += mChar;

resultList.Add(mSubStr);

}

else

{

mSubStr += mChar;

}

}

return resultList;

}