如何使用垂直滚动条显示图像 [英] how to dsplay images using verticle scroll bar

问题描述

亲爱的所有
使用此代码，如果我拖动滚动条，图像会显示到结尾，但会卡在结尾
请帮帮我
nitin

dear all
using this code , if i drag scroll bar images appear till end , but it get stuck at end
please help me out
nitin

private void vScrollBar1_ValueChanged(object sender, EventArgs e)
{
    if (icount < objclsvrb.objds.Tables[0].Rows.Count)  
    {
        if (icount == 0)          
        {
            axDicomViewer1.Images.ReadFile("D:/FilmPlus_MSAccess/bin/Debug/Images/" + objclsvrb.objds.Tables[0].Rows[icount][0].ToString() + ".dcm");

            icount++;
        }
        else
        {
            axDicomViewer1.Images.ReadFile("D:/FilmPlus_MSAccess/bin/Debug/Images/" + objclsvrb.objds.Tables[0].Rows[icount][0].ToString() + ".dcm");

            icount++;
        }
    }
    else
    {
        MessageBox.Show("not found");
            
        vScrollBar1.Value = 0;
    }
}

推荐答案

在滚动向后移动时，条件尚未减少"icount"
为此，请声明页面级变量&保持滚动条的previousValue.
如果currentvalue小于先前的值，则将其与current-value进行比较，然后
icount-
的代码 祝您编码愉快！
:)

you haven''t decremented ''icount'' for condition when scroll move reverse
for that declare a page-level variable & maintain previousValue of scrollbar.
compare it with current-value if currentvalue is less than previous then
code for icount--
Happy Coding!
:)

我进行的一些更改
int icount = 1;

some changes I made
int icount=1;

private void vScrollBar1_ValueChanged(object sender, EventArgs e)
       {
           
           sbvalue = vScrollBar1.Value;

           vScrollBar1.Maximum = num ;
  


           if (icount < objclsvrb.objds.Tables[0].Rows.Count)  //
           {

               if (icount == 0)          
               {
                   axDicomViewer1.Images.ReadFile("D:/FilmPlus_MSAccess/bin/Debug/Images/" + objclsvrb.objds.Tables[0].Rows[icount][0].ToString() + ".dcm");

                   icount++;
               }
               else
               {
                   axDicomViewer1.Images.ReadFile("D:/FilmPlus_MSAccess/bin/Debug/Images/" + objclsvrb.objds.Tables[0].Rows[icount][0].ToString() + ".dcm");

                   icount++;
                

               }
           }

           else
           {
               //MessageBox.Show("not found");
               icount = 0;
               vScrollBar1.Value = 1;
           }
       }

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