DataGridViewImageColumn DataGridViewTextBoxColumn DataGridViewColumn HELP

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Which of these DGV controls has the WORKING  .VALUE property

that I can manipulate PROGRAMMATICALLY in the  CellFormatting method CONDITIONALLY ?

I believe this round I’m trying a plain DataGridViewColumn

 
if (pbNoteId > 0)   // this value is based upon harvesting an Id from a not visible neighboring column 
{
//this.dgvPricebooks.Rows[iRowIndex][colIndexNoteImage].Style.DataSourceNullValue = null;
//this.dgvPricebooks.Rows[iRowIndex][colIndexNoteImage].Style.BackgroundImageSource = Properties.Resources.note.ToString();
this.dgvPricebooks.Rows[iRowIndex][colIndexNoteImage].Value = Properties.Resources.note;
}
else
{
//this.dgvPricebooks.Rows[iRowIndex][colIndexNoteImage].Style.BackgroundImageSource = null;
this.dgvPricebooks.Rows[iRowIndex][colIndexNoteImage].Value = null;
}

 

The Grid loads all rows with the notes Icon ,  you will get the icon displayed after clicking in the cell

but so what the scrolling will mess that up as well because it repeatedly re runs the CellFormatting method

Attachment
Note Icon Alternating By Id.png
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  • Christian Programmer
    Correction one test loads with all cells displaying icons another test displays icon only after clicking cell as shown in image attachment
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CellFormatting is to set the formatting of the cell, not to change the value. Use the e.Value and e.CellStyle to adjust the formatting.

https://docs.wisej.com/api/wisej.web/lists-and-grids/datagridview/wisej.web.datagridviewcellformattingeventargs

If the column is an image column set the image (either a string or an image) to e.Value. If you have different requirement send a small test case showing what you need to do and what is the issue you are encountering.

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–COMMENT—  &  FOLLOW UP Question please              is it OK to manually invoke this render method for each row ?
– I didn’t want to make a fresh question for naught,
please & thank you

Greetings all, I did this — >   [ Image attached ]

[
if (iRowIndex >= 0 && iColIndex == colIndexNoteImage) // Image Column r.e. display
{
// DYNAMIC DISPLAY OF Notes Image WHEN Notes column has valid NoteId
pbNoteId = // from some other cell
if (pbNoteId > 0)
{
e.CellStyle.BackgroundImage = Properties.Resources.note;
e.CellStyle.BackgroundImageAlign = ContentAlignment.MiddleCenter;
e.CellStyle.BackgroundImageLayout = ImageLayout.BestFit;
e.CellStyle.Render();
}
else
{ e.CellStyle.BackgroundImage = null; }
}
]
to attempt to address my inconsistent DGV cell image response with scrolling
& its seems to work. I could not locate any documentation WiseJ or MSFT regarding this
method off of e.CellStyle.Render();
the UI is still a bit slow — is it OK to manually invoke this render method for each row ?
Or am i causing an additional needless performance hit ?
DataGridViewCellFormattingEventArgs.CellStyle.Render();

 

 

Attachment
e CellStyle Render Method.png
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0
0

–COMMENT—  &  FOLLOW UP Question please              is it OK to manually invoke this render method for each row ?
– I didn’t want to make a fresh question for naught,
please & thank you

Greetings all, I did this — >   [ Image attached ]

[
if (iRowIndex >= 0 && iColIndex == colIndexNoteImage) // Image Column r.e. display
{
// DYNAMIC DISPLAY OF Notes Image WHEN Notes column has valid NoteId
pbNoteId = // from some other cell
if (pbNoteId > 0)
{
e.CellStyle.BackgroundImage = Properties.Resources.note;
e.CellStyle.BackgroundImageAlign = ContentAlignment.MiddleCenter;
e.CellStyle.BackgroundImageLayout = ImageLayout.BestFit;
e.CellStyle.Render();
}
else
{ e.CellStyle.BackgroundImage = null; }
}
]
to attempt to address my inconsistent DGV cell image response with scrolling
& its seems to work. I could not locate any documentation WiseJ or MSFT regarding this
method off of e.CellStyle.Render();
the UI is still a bit slow — is it OK to manually invoke this render method for each row ?
Or am i causing an additional needless performance hit ?
DataGridViewCellFormattingEventArgs.CellStyle.Render();

 

 

Attachment
e CellStyle Render Method.png
  • You must to post comments
0
0

–COMMENT—  &  FOLLOW UP Question please              is it OK to manually invoke this render method for each row ?
– I didn’t want to make a fresh question for naught,
please & thank you

Greetings all, I did this — >   [ Image attached ]

[
if (iRowIndex >= 0 && iColIndex == colIndexNoteImage) // Image Column r.e. display
{
// DYNAMIC DISPLAY OF Notes Image WHEN Notes column has valid NoteId
pbNoteId = // from some other cell
if (pbNoteId > 0)
{
e.CellStyle.BackgroundImage = Properties.Resources.note;
e.CellStyle.BackgroundImageAlign = ContentAlignment.MiddleCenter;
e.CellStyle.BackgroundImageLayout = ImageLayout.BestFit;
e.CellStyle.Render();
}
else
{ e.CellStyle.BackgroundImage = null; }
}
]
to attempt to address my inconsistent DGV cell image response with scrolling
& its seems to work. I could not locate any documentation WiseJ or MSFT regarding this
method off of e.CellStyle.Render();
the UI is still a bit slow — is it OK to manually invoke this render method for each row ?
Or am i causing an additional needless performance hit ?
DataGridViewCellFormattingEventArgs.CellStyle.Render();

 

 

Attachment
e CellStyle Render Method.png
  • You must to post comments
0
0

–COMMENT—  &  FOLLOW UP Question please              is it OK to manually invoke this render method for each row ?
– I didn’t want to make a fresh question for naught,
please & thank you

Greetings all, I did this — >   [ Image attached ]

[
if (iRowIndex >= 0 && iColIndex == colIndexNoteImage) // Image Column r.e. display
{
// DYNAMIC DISPLAY OF Notes Image WHEN Notes column has valid NoteId
pbNoteId = // from some other cell
if (pbNoteId > 0)
{
e.CellStyle.BackgroundImage = Properties.Resources.note;
e.CellStyle.BackgroundImageAlign = ContentAlignment.MiddleCenter;
e.CellStyle.BackgroundImageLayout = ImageLayout.BestFit;
e.CellStyle.Render();
}
else
{ e.CellStyle.BackgroundImage = null; }
}
]
to attempt to address my inconsistent DGV cell image response with scrolling
& its seems to work. I could not locate any documentation WiseJ or MSFT regarding this
method off of e.CellStyle.Render();
the UI is still a bit slow — is it OK to manually invoke this render method for each row ?
Or am i causing an additional needless performance hit ?
DataGridViewCellFormattingEventArgs.CellStyle.Render();

 

 

Attachment
e CellStyle Render Method.png
  • You must to post comments
0
0

–COMMENT—  &  FOLLOW UP Question please              is it OK to manually invoke this render method for each row ?
– I didn’t want to make a fresh question for naught,
please & thank you

Greetings all, I did this — >   [ Image attached ]

[
if (iRowIndex >= 0 && iColIndex == colIndexNoteImage) // Image Column r.e. display
{
// DYNAMIC DISPLAY OF Notes Image WHEN Notes column has valid NoteId
pbNoteId = // from some other cell
if (pbNoteId > 0)
{
e.CellStyle.BackgroundImage = Properties.Resources.note;
e.CellStyle.BackgroundImageAlign = ContentAlignment.MiddleCenter;
e.CellStyle.BackgroundImageLayout = ImageLayout.BestFit;
e.CellStyle.Render();
}
else
{ e.CellStyle.BackgroundImage = null; }
}
]
to attempt to address my inconsistent DGV cell image response with scrolling
& its seems to work. I could not locate any documentation WiseJ or MSFT regarding this
method off of e.CellStyle.Render();
the UI is still a bit slow — is it OK to manually invoke this render method for each row ?
Or am i causing an additional needless performance hit ?
DataGridViewCellFormattingEventArgs.CellStyle.Render();

 

 

Attachment
e CellStyle Render Method.png
  • You must to post comments
0
0

–COMMENT—  &  FOLLOW UP Question please              is it OK to manually invoke this render method for each row ?
– I didn’t want to make a fresh question for naught,
please & thank you

Greetings all, I did this — >   [ Image attached ]

[
if (iRowIndex >= 0 && iColIndex == colIndexNoteImage) // Image Column r.e. display
{
// DYNAMIC DISPLAY OF Notes Image WHEN Notes column has valid NoteId
pbNoteId = // from some other cell
if (pbNoteId > 0)
{
e.CellStyle.BackgroundImage = Properties.Resources.note;
e.CellStyle.BackgroundImageAlign = ContentAlignment.MiddleCenter;
e.CellStyle.BackgroundImageLayout = ImageLayout.BestFit;
e.CellStyle.Render();
}
else
{ e.CellStyle.BackgroundImage = null; }
}
]
to attempt to address my inconsistent DGV cell image response with scrolling
& its seems to work. I could not locate any documentation WiseJ or MSFT regarding this
method off of e.CellStyle.Render();
the UI is still a bit slow — is it OK to manually invoke this render method for each row ?
Or am i causing an additional needless performance hit ?
DataGridViewCellFormattingEventArgs.CellStyle.Render();

 

 

Attachment
e CellStyle Render Method.png
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0

OK   I had to use BackgroundImage  property  and its still not clean the scrollbar makes it wonky the top of the grid doesn’t refresh .

The BackgroundImageSource  property accepted the string from resource but didn’t work for me

if (pbNoteId > 0)
{
//e.CellStyle.BackgroundImageSource = Properties.Resources.note.ToString();
e.CellStyle.BackgroundImage = Properties.Resources.note;
}
else
{
//e.CellStyle.BackgroundImageSource = null;
e.CellStyle.BackgroundImage = null;
}

Thank you

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0
0

“If the column is an image column set the image (either a string or an image) to e.Value. ”

Is that to be performed in the CellFormatting method and is it specifically for the DataGridViewImageColumn  ?

Please & Thank you   I grabbed someones sample from here and it is setting     e.CellStyle.BackgroundImageSource

i was just about to test that set to a string  Properties.Resources.note.ToString();

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