How to keep constant rowcount for Datagrid view in Virtual Mode?
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0
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I have implemented data grid view in virtual mode. My data source contains 5k entries. At a time I want to load only 50. Is there a possibility to delete previous row and add a new one on scroll. So that row count remains constant.
Ex.
public void DataGridView1_Scroll(object sender, ScrollEventArgs e)
{
int startIndex = dataGridView1.FirstDisplayedScrollingRowIndex;
int endIndex = startIndex + 50 + 1;
//set datagrid view count to end index
dataGridView1.RowCount = endIndex;
//remove previous rows
startIndex = startIndex - 1;
while (startIndex != -1)
{
dataGridView1.Rows.RemoveAt(startIndex);
startIndex--;
}
}
c# datagridview virtualmode
asked Nov 22 at 9:54
Akanksha
758
add a comment |
up vote
0
down vote
favorite
I have implemented data grid view in virtual mode. My data source contains 5k entries. At a time I want to load only 50. Is there a possibility to delete previous row and add a new one on scroll. So that row count remains constant.
Ex.
public void DataGridView1_Scroll(object sender, ScrollEventArgs e)
{
int startIndex = dataGridView1.FirstDisplayedScrollingRowIndex;
int endIndex = startIndex + 50 + 1;
//set datagrid view count to end index
dataGridView1.RowCount = endIndex;
//remove previous rows
startIndex = startIndex - 1;
while (startIndex != -1)
{
dataGridView1.Rows.RemoveAt(startIndex);
startIndex--;
}
}
c# datagridview virtualmode
asked Nov 22 at 9:54
Akanksha
758
Docs say: "When the VirtualMode property is true, you create a DataGridView with a set number of rows and columns and then handle the CellValueNeeded event to populate the cells"
– stuartd
Nov 22 at 10:05
I am handling cell value needed and datagridview is loaded properly. But on scroll I am adding extra rows from datasource as initially only 50 were added. This will keep on increasing the rowcount of datagridview, How can I avoid this ? At a time I want only 50 rows in datagridview.
– Akanksha
Nov 22 at 10:09
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have implemented data grid view in virtual mode. My data source contains 5k entries. At a time I want to load only 50. Is there a possibility to delete previous row and add a new one on scroll. So that row count remains constant.
Ex.
public void DataGridView1_Scroll(object sender, ScrollEventArgs e)
{
int startIndex = dataGridView1.FirstDisplayedScrollingRowIndex;
int endIndex = startIndex + 50 + 1;
//set datagrid view count to end index
dataGridView1.RowCount = endIndex;
//remove previous rows
startIndex = startIndex - 1;
while (startIndex != -1)
{
dataGridView1.Rows.RemoveAt(startIndex);
startIndex--;
}
}
c# datagridview virtualmode
asked Nov 22 at 9:54
Akanksha
758
I have implemented data grid view in virtual mode. My data source contains 5k entries. At a time I want to load only 50. Is there a possibility to delete previous row and add a new one on scroll. So that row count remains constant.
Ex.
public void DataGridView1_Scroll(object sender, ScrollEventArgs e)
{
int startIndex = dataGridView1.FirstDisplayedScrollingRowIndex;
int endIndex = startIndex + 50 + 1;
//set datagrid view count to end index
dataGridView1.RowCount = endIndex;
//remove previous rows
startIndex = startIndex - 1;
while (startIndex != -1)
{
dataGridView1.Rows.RemoveAt(startIndex);
startIndex--;
}
}
c# datagridview virtualmode
c# datagridview virtualmode
asked Nov 22 at 9:54
Akanksha
758
asked Nov 22 at 9:54
Akanksha
758
asked Nov 22 at 9:54
Akanksha
758
asked Nov 22 at 9:54
Akanksha
758
asked Nov 22 at 9:54
Akanksha
758
758
Docs say: "When the VirtualMode property is true, you create a DataGridView with a set number of rows and columns and then handle the CellValueNeeded event to populate the cells"
– stuartd
Nov 22 at 10:05
I am handling cell value needed and datagridview is loaded properly. But on scroll I am adding extra rows from datasource as initially only 50 were added. This will keep on increasing the rowcount of datagridview, How can I avoid this ? At a time I want only 50 rows in datagridview.
– Akanksha
Nov 22 at 10:09
add a comment |
Docs say: "When the VirtualMode property is true, you create a DataGridView with a set number of rows and columns and then handle the CellValueNeeded event to populate the cells"
– stuartd
Nov 22 at 10:05
I am handling cell value needed and datagridview is loaded properly. But on scroll I am adding extra rows from datasource as initially only 50 were added. This will keep on increasing the rowcount of datagridview, How can I avoid this ? At a time I want only 50 rows in datagridview.
– Akanksha
Nov 22 at 10:09
Docs say: "When the VirtualMode property is true, you create a DataGridView with a set number of rows and columns and then handle the CellValueNeeded event to populate the cells"
– stuartd
Nov 22 at 10:05
Docs say: "When the VirtualMode property is true, you create a DataGridView with a set number of rows and columns and then handle the CellValueNeeded event to populate the cells"
– stuartd
Nov 22 at 10:05
I am handling cell value needed and datagridview is loaded properly. But on scroll I am adding extra rows from datasource as initially only 50 were added. This will keep on increasing the rowcount of datagridview, How can I avoid this ? At a time I want only 50 rows in datagridview.
– Akanksha
Nov 22 at 10:09
I am handling cell value needed and datagridview is loaded properly. But on scroll I am adding extra rows from datasource as initially only 50 were added. This will keep on increasing the rowcount of datagridview, How can I avoid this ? At a time I want only 50 rows in datagridview.
– Akanksha
Nov 22 at 10:09
add a comment |
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Docs say: "When the VirtualMode property is true, you create a DataGridView with a set number of rows and columns and then handle the CellValueNeeded event to populate the cells"
– stuartd
Nov 22 at 10:05
I am handling cell value needed and datagridview is loaded properly. But on scroll I am adding extra rows from datasource as initially only 50 were added. This will keep on increasing the rowcount of datagridview, How can I avoid this ? At a time I want only 50 rows in datagridview.
– Akanksha
Nov 22 at 10:09