datagrieview scroll bar control

skyzjbbq1

datagrieview scroll bar control automatically
Scroll to selectrow
Or scroll down with a mouse click?

不大不小虾米

Understand, it's the same effect as the scroll bar property when it is similar to the multiline of textbox...
  
  It seems I can only help you

I haven't tried it in gridview. I don't know if my explanation is correct..

hyuk0321

The solution is as follows:

private void dataGridView1_CellMouseClick(object sender, DataGridViewCellMouseEventArgs e)
{
   int numScroll = 5; //This value needs to be adjusted according to the height of dataGridView1
   if (e.RowIndex <numScroll)
       return;
   dataGridView1.FirstDisplayedScrollingRowIndex = e.RowIndex-numScroll;
   dataGridView1.Refresh();
}

The specific effect requires you to debug yourself. . . . .

skyzjbbq1

That is to say, when a certain index row is queried with select, the scroll bar automatically scrolls.. Let the row be displayed at the top/bottom/most!

lytshmily

datagrieview

skyzjbbq1

Yes... is there a way?

t0112405

The variable numScroll forhyuk0321can be as follows;
int numScroll = dataGridView1.DisplayedRowCount(false);

What I don't understand is the following statement;
dataGridView1.FirstDisplayedScrollingRowIndex = e.RowIndex-numScroll;
Why e.RowIndex-numScroll, isn't it enough to use e.RowIndex directly?

t0112405

In fact, I think the automatic scrolling of the DataGridView is required, and the selected items jump around. It feels very bad. It is better not to automatically scroll!!

57162356

There are two ideas:
1. After selecting the cell, change the top value of the selected row to the value of the top/middle/bottom row of the datagridview
2. Hide all the rows above the selected row, and the selected row will automatically jump to the top

hyuk0321

Tot0112405:
   In fact, the intention of lz is like dynamically positioning (finding) specific graphic blocks in a graphical interface to the center of the view. You can write a simple program, (dynamically add data: timer, statically add data from the database) OK), after the experimental results, you can understand why I wrote that way.