如何将一个.txt文件的内容显示在edit框内？

[sdcer777]

我的edit框是多行显示的(multiline),我知道可能得先读文件，将内容读入缓冲区，然后再在edit内显示。假如我的缓冲区只有10。即char buff[10],而我的.txt文件有1k。我的意思是每次读10个字节显示在edit框内，下一次10个字节怎么加入啊？都用哪些函数呢？谢谢

[BinaryTreeEx]

第一次怎么做不用说了。第2次的10个字节这样读入：
选中第十一个字节，然后用置换方法把第2次的10个字节置换进去。
相关函数
CEdit::SetSel
CEdit::ReplaceSel

[softworms]

将文本载入一个串中,然后用SetWindowText()设置进去.

[kongyunzhongque]

以下代码是从一个编辑框中读取，然后添加到另一个多行编辑框中

UpdateData();
CString strContext;


CEdit *pEdit =(CEdit*)GetDlgItem(IDC_EDIT_ADD);
pEdit->GetWindowText(strContext);
pEdit = (CEdit*) GetDlgItem(IDC_EDIT_CONTEXT);
// pEdit->GetWindowText(strContext);
int nBegin,nEnd,nCount,nLength;
nCount =pEdit->GetLineCount();
/*
if(nCount==1)
{
if(!strContext.IsEmpty())
pEdit->SetWindowText(strContext+"\r\n");
return;
}
*/ if ((nBegin=pEdit->LineIndex(nCount-1)) != -1)
{
nLength=pEdit->LineLength(nCount-1);

nEnd = nBegin +nLength ;
pEdit->SetSel(nEnd,-1);
if(!strContext.IsEmpty())
pEdit->ReplaceSel(strContext+"\r\n");
}

[myemailcn]

while(feof(file_pointer))
{
fread(buf, sizeof(char), 10, file_pointer);
}

[myemailcn]

char buffer_text[11];
while(feof(file_pointer))
{

fread(buf, sizeof(char), 10, file_pointer);
strcpy(buffer_text, buf);
strcat(buffer_text, "\n");
}



}

[kongyunzhongque]

从多行编辑框中取出保存txt文件，比较复杂的做法，简单的做法在差不多最后的地方注释了

UpdateData();
CString strName;
CString strContext;
CEdit *pEdit = (CEdit*) GetDlgItem(IDC_EDIT_NAME);
pEdit->GetWindowText(strName);
strName.TrimLeft();
strName.TrimRight();
strName += ".h";
strName = "C:\\"+strName;
CFile file;
if( !file.Open(strName, CFile::modeCreate | CFile::modeWrite) )
{
#ifdef _DEBUG
afxDump << "File could not be opened " << "\n";
#endif
}
pEdit = (CEdit*) GetDlgItem(IDC_EDIT_CONTEXT);

CString strTemp;
pEdit->GetWindowText(strTemp);
strTemp.TrimRight();
pEdit->SetWindowText(strTemp);

char *pbuf;
int nCount = pEdit->GetLineCount();
strTemp.Format("%d",nCount);
AfxMessageBox(strTemp);
for(int i=0;i<nCount;i++)
{
pbuf=new char[pEdit->LineLength(i)+1];
pEdit->GetLine(i,pbuf);
pbuf[pEdit->LineLength(i)]='\0';
file.Write(pbuf,pEdit->LineLength(i));
file.Write("\r\n",2);
AfxMessageBox(pbuf);
delete pbuf;
pbuf =NULL;
}

// CString strTemp;

// pEdit->GetWindowText(strTemp);
// file.Write(strTemp,pEdit->GetWindowTextLength());
pEdit = NULL;
file.Close();

CDialog::OnOK();


以下代码是上面代码执行之后，从文件中读取添加到多行编辑框。
ps：都是3个字母为一行

UpdateData();
CString strName;
CString strContext="";
CEdit *pEdit = (CEdit*) GetDlgItem(IDC_EDIT_NAME);
pEdit->GetWindowText(strName);
strName.TrimLeft();
strName.TrimRight();
strName += ".h";
strName = "C:\\"+strName;
MessageBox(strName);
CFile file;
if( !file.Open(strName, CFile::modeRead) )
{
#ifdef _DEBUG
afxDump << "File could not be opened " << "\n";
#endif
}

int nTemp =file.GetLength();
strContext.Format("%d",nTemp);
MessageBox(strContext);
pEdit = (CEdit*) GetDlgItem(IDC_EDIT_CONTEXT);

char *pbuf;
UINT nBytesRead=1;
int nCount=0;
while(nCount <nTemp)
{
pbuf =new char[5];
nBytesRead=file.Read(pbuf,5);
nCount +=nBytesRead;
pbuf[4]='\0';

strContext.Format("%4s",pbuf);
strContext.TrimLeft();
strContext.TrimRight();

int nBegin,nEnd,nCount,nLength;
nCount =pEdit->GetLineCount();

if ((nBegin=pEdit->LineIndex(nCount-1)) != -1)
{
nLength=pEdit->LineLength(nCount-1);

nEnd = nBegin +nLength ;
pEdit->SetSel(nEnd,-1);
if(!strContext.IsEmpty())
pEdit->ReplaceSel(strContext+"\r\n");
}
delete [] pbuf;
}

pEdit = NULL;
file.Close();

[bluebohe]

文本框追加数据问题
下面的代码在文本框最后追加"abc"

int nLength = m_edit.SendMessage(WM_GETTEXTLENGTH);
m_edit.SetSel(nLength, nLength);
m_edit.ReplaceSel("abc");