CODEWITHSUNDEEP
c#datagridview
Michael
Michael

Reputation: 15

Problems with datagridview / autoresizecolumns and rows

I have a huge problems every time I try to resize my columns and rows. I'm trying to autoresize the columns and the rows with the function:

dataGridView1.AutoResizeColumns();
dataGridView1.AutoResizeRows();

If i put this two lines after I pass the datasource to dataview, it doesn't work. I tried to handle the DataSourceBindingComplete, and idem it doesn't work. I tried to set it in the form.designer.cs and it doesn't work. then I tried to make a button 

private void button1_Click(object sender, EventArgs e)
{
     dataGridView1.AutoResizeColumns();
     dataGridView1.AutoResizeRows();
}

and when I click the button everything works perfectly!!! It resizes all my columns and my rows. But i don't want this. I want it automatic. Can you guys help me please and explain why it does that? Doesn't make sense, inside the original code it doesn't work, but in a separate button it works.

Upvotes: 0

Views: 2271

Answers (3)

Violoncello
Violoncello

Reputation: 46

I apologize that it took me more than a year to see this post...

Here's what I did to make this "automatic".

private void AutoResizeGrid()
    {
        if (dataGridView.Columns.Count < 1) return;
        dataGridView.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.DisplayedCells);
        dataGridView.AutoResizeRows(DataGridViewAutoSizeRowsMode.DisplayedCells);
    }


    private void MatrixDataGridView_ClientSizeChanged(object sender, EventArgs e)
    {
        if (!this.Visible) return;
        AutoResizeGrid();
    }

    private void MatrixDataGridView_Scroll(object sender, ScrollEventArgs e)
    {
        if (!this.Visible) return;
        AutoResizeGrid();
    }

Before adding this code, I went to the Designer and I set "AutoSizeColumnsMode" and "AutoSizeRowsMode" both to "DisplayedCells". This causes automation when the grid first receives the data. The code above causes automation when a resize or scroll event happens.

Upvotes: 0

Gerhard Diedericks
Gerhard Diedericks

Reputation: 51

Have you tried setting the DataGridViewAutoSizeColumnsMode before you set the source, if possible?

private void button1_Click(object sender, EventArgs e)
{
    dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells;
    dataGridView1.DataSource = SourceList; // Your Collection here
    dataGridView1.AutoResizeRows();
}

Upvotes: 1

PNDev
PNDev

Reputation: 750

This has worked for me.

Set AutoSizeColumnsMode and AutoSizeRowsMode values to AllCells from None in the designer.

Upvotes: 1

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