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Not enough data to reproduce. Give me a complete example so that I can replicate it myself.
In a private message then - you need additional classes there.
Yes, it happens after rebuilding the table.
Not enough data to reproduce. Please attach a complete example so that I can repeat it myself.
Tol, on the previous question and on the private message with a code example without tambourines: Take your example from Experts\Article10\TestLibrary06.
In Program.mqh in the timer you just write a few lines, compile and watch.
//| Timer|
//+------------------------------------------------------------------+
void CProgram::OnTimerEvent(void)
{
CWndEvents::OnTimerEvent();
//--- Pause between element updates
if(m_counter1.CheckTimeCounter())
{
//--- Updating the second item of the status bar
m_status_bar.ValueToItem(1,::TimeToString(::TimeLocal(),TIME_DATE|TIME_SECONDS));
//--- Redraw the graph
m_chart.Redraw();
}
//--- Pause between element updates
if(m_counter2.CheckTimeCounter())
{
//--- Enter the price value of the current symbol into the Price of the first row
MqlTick tick;
if(SymbolInfoTick(Symbol(),tick))
//--- Add a row to the table if the total number is less than the specified one{
int dg=(int)SymbolInfoInteger(Symbol(),SYMBOL_DIGITS);
m_table.SetValue(1,1,DoubleToString(tick.bid,dg),dg);
m_table.UpdateTable();
}
if(m_table.RowsTotal()<m_spin_edit1.GetValue())
m_table.AddRow();
//--- Add a column to the table if the total number of columns is less than the specified number.
if(m_table.ColumnsTotal()<m_spin_edit2.GetValue())
m_table.AddColumn();
//--- Add an item to the list if the total number is less than the specified number.
if(m_listview.ItemsTotal()<m_spin_edit5.GetValue())
{
m_listview.AddItem("SYMBOL "+string(m_listview.ItemsTotal()));
//--- Move the scroll bar slider to the end of the list
m_listview.Scrolling();
}
//--- Add an item to the list from the checkboxes if the total number is less than the specified one
if(m_checkbox_list.ItemsTotal()<m_spin_edit5.GetValue())
{
m_checkbox_list.AddItem("Checkbox "+string(m_checkbox_list.ItemsTotal()));
//--- Move the scroll bar slider to the end of the list
m_checkbox_list.Scrolling();
}
//--- Redraw the graph
m_chart.Redraw();
}
}
//+------------------------------------------------------------------+
Without a row with table update, there is no price in the first column of the first row. If there is, the price is entered and changed, but the table is constantly redrawn, and it is no longer possible to work with it.
What should I do if I need real-time updating of many rows of the table? (many symbols, and for each you need to display the current price)
Tol, regarding the previous question and the personal message with a code example without tambourines: Take your example from Experts\Article10\TestLibrary06.
In Program.mqh in the timer just write a few lines, compile and watch.
Without a row with table update, there is no price in the first column of the first row. If there is, the price is entered and changed, but the table is constantly redrawn, and it is no longer possible to work with it.
What should I do if I need real-time updating of many rows of the table? (many symbols, and for each you need to display the current price).
Perhaps (at first glance), it will be necessary to slightly modify the CTable::SetValue() method, so that it would be possible to change the value of the specified cell with updating only this cell (if it is in the visible area), and not the whole table.
I'll take a look when I'm done working on the current article.
P.S. I will fix blinking of the highlighted row too.
Perhaps (at first glance), you'll need to modify the CTable::SetValue() method a bit to allow you to change the value of a specified cell with only that cell updated (if it's in the visible area), not the entire table.
I'll take a look when I'm done working on the current article.
P.S. I'll fix the blinking of the highlighted row too.
There is no "quick" solution, which is "right now"?
To prevent the selected table row from blinking, add these lines to the CTable::UpdateTable() method in the last loop:
for(uint c=l; c<m_visible_columns_total; c++)
{
//--- Get the current position of the vertical scroll bar slider
v=m_scrollv.CurrentPos()+t;
//--- Rows
for(uint r=t; r<m_visible_rows_total; r++)
{
//--- Offset table data
if(v>=t && v<m_rows_total && h>=l && h<m_columns_total)
{
//--- Adjustment for the highlighted line
color back_color=(m_selected_item==v) ? m_selected_row_color : m_vcolumns[h].m_cell_color[v];
color text_color=(m_selected_item==v) ? m_selected_row_text_color : m_vcolumns[h].m_text_color[v];
//--- Adjust (1) values, (2) background colour, (3) text colour and (4) text alignment in cells
SetCellParameters(c,r,m_vcolumns[h].m_vrows[v],back_color,text_color,m_vcolumns[h].m_text_align[v]);
v++;
}
}
//---
h++;
}
//---
And with the rest you need more details.
If you update the table every time a new tick is received, it becomes impossible to work with the table - it blinks, the selected row blinks , etc,etc,etc....
What is this? :
To prevent the highlighted row from blinking, add these lines to the CTable::UpdateTable() method in the last loop:
for(uint c=l; c<m_visible_columns_total; c++)
{
//--- Get the current position of the vertical scroll bar slider
v=m_scrollv.CurrentPos()+t;
//--- Rows
for(uint r=t; r<m_visible_rows_total; r++)
{
//--- Offset table data
if(v>=t && v<m_rows_total && h>=l && h<m_columns_total)
{
//--- Adjustment for the highlighted line
color back_color=(m_selected_item==v) ? m_selected_row_color : m_vcolumns[h].m_cell_color[v];
color text_color=(m_selected_item==v) ? m_selected_row_text_color : m_vcolumns[h].m_text_color[v];
//--- Adjust (1) values, (2) background colour, (3) text colour and (4) text alignment in cells
SetCellParameters(c,r,m_vcolumns[h].m_vrows[v],back_color,text_color,m_vcolumns[h].m_text_align[v]);
v++;
}
}
//---
h++;
}
//---
And with the rest you need more details.
What is this? :
To prevent the highlighted row from blinking, add these lines to the CTable::UpdateTable() method in the last loop:
for(uint c=l; c<m_visible_columns_total; c++)
{
//--- Get the current position of the vertical scroll bar slider
v=m_scrollv.CurrentPos()+t;
//--- Rows
for(uint r=t; r<m_visible_rows_total; r++)
{
//--- Offset table data
if(v>=t && v<m_rows_total && h>=l && h<m_columns_total)
{
//--- Adjustment for the highlighted line
color back_color=(m_selected_item==v) ? m_selected_row_color : m_vcolumns[h].m_cell_color[v];
color text_color=(m_selected_item==v) ? m_selected_row_text_color : m_vcolumns[h].m_text_color[v];
//--- Adjust (1) values, (2) background colour, (3) text colour and (4) text alignment in cells
SetCellParameters(c,r,m_vcolumns[h].m_vrows[v],back_color,text_color,m_vcolumns[h].m_text_align[v]);
v++;
}
}
//---
h++;
}
No, nothing has changed in behaviour - it still blinks. If the mouse cursor is above the table, it blinks, if the mouse cursor is outside the window, there is no visible row selection at all.
I don't see this with the changes I've made. The highlighted line no longer blinks on the example you suggested to test.
Tol, I'll have a look at that example - I've looked through it in my programme, but now I have to run away. When I come back, I'll write you back.