CODEWITHSUNDEEP
c#winforms
Pepe
Pepe

Reputation: 111

Add tooltip to specific column on Data Grid View

I have a Data Grid View like:

if (this.dgv.Rows.Count < 1)
                {
                    this.dgv.DataSource = null;
                    this.dgv.DataBindings.Clear();
                    if (this.dgv.Columns.Count == 0) this.dgv.ColumnCount = 15;
                    this.dgv.ColumnHeadersVisible = true;

                    this.dgv.Columns[4].Name = "Added By";
                    this.dgv.Columns[5].Name = "AddedByFullName";
                }

as you can see I have column 4 called Added By 

 this.dgv.Columns[4].Name = "Added By";

and column 5 called AddedByFullName

 this.dgv.Columns[5].Name = "AddedByFullName";

I want to know how can I use AddedByFullName column as a tooltip for Added By column then I will just remove AddedByFullName column , is that possible? Regards

Upvotes: 1

Views: 2341

Answers (4)

fourwhey
fourwhey

Reputation: 530

You can do this using the CellMouseEnter or CellToolTipTextNeeded event for the DataGridView. Hide the column you want to use as the source, then replace the control name in the sample to match your DataGridView.

private void dgv_CellMouseEnter(object sender, DataGridViewCellEventArgs e)
{
    if ((e.ColumnIndex == dgv.Columns["Added By"].Index)
        && (e.RowIndex > -1))
    {
        dgv.Rows[e.RowIndex].Cells[e.ColumnIndex].ToolTipText = dgv.Rows[e.RowIndex].Cells[dgv.Columns["AddedByFullName"].Index].Value.ToString();
    }
}

Upvotes: 3

devquestions
devquestions

Reputation: 123

There is a CellToolTipTextNeeded event which is created specifically for setting tooltip text. You don't need to use use CellFormatting or CellMouseEnter. If you are going to show text of column 5 as tooltip of column 4, you can write:

private void g_CellToolTipTextNeeded(object sender, DataGridViewCellToolTipTextNeededEventArgs e)
{
    if (e.ColumnIndex == 4 && e.RowIndex >= 0)
    {
        e.ToolTipText = $"{dataGridView1[5, e.RowIndex].Value}";
    }
}

Upvotes: 0

Flydog57
Flydog57

Reputation: 7111

The DataGridViewColumn class has a ToolTipText property. If you set it on the column, you will get a tool tip for the column header. If you want a tool tip to show up on every cell, you can implement a CellFormatting event handler, pull out the right cell (from the column) and set the cell's ToolTipText property. Something like:

 private const int InterestingColumnNumber = 5;
 private const string InterestingColumnToolTipText = "This Space For Rent";

 private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
 {
     var senderGridView = sender as DataGridView;
     if (senderGridView != null)
     {
         if (e.ColumnIndex == InterestingColumnNumber) 
         {
             var cell = senderGridView.Rows[e.RowIndex].Cells[InterestingColumnNumber];
             cell.ToolTipText = InterestingColumnToolTipText;
         }
     }
 }

Upvotes: 0

Pepe
Pepe

Reputation: 111

Using CellMouseEnter event can be a posibility to achieve this but it also can be done with CellFormatting event as Microsoft REFERENCE

  private void dgJobNotes_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            if ((e.ColumnIndex == this.dgJobNotes.Columns["Added By"].Index)
            && e.Value != null)
            {
   dgJobNotes.Rows[e.RowIndex].Cells[e.ColumnIndex].ToolTipText = dgJobNotes.Rows[e.RowIndex].Cells[5].Value.ToString();
            }

Upvotes: 1

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