CODEWITHSUNDEEP
c#datagridviewtablelayoutpanel
Denise Skidmore
Denise Skidmore

Reputation: 2416

DataGridView acts as though it has a minimum size inside a TableLayoutPanel

When I place a data grid view on a form, with Dock = DockStyle.Fill, I can shrink the form down to less than one row remaining before there are any issues with the data grid view scroll bar. However if I place it inside a table layout panel that is in turn docked to the form, the data grid view starts to act as though it has a minimum height, cutting off the bottom rows and bottom of the scroll bar.

Form after Resizing

    public Form1()
    {
        InitializeComponent();

        BindingList<Widget> list = new BindingList<Widget>();
        dataGridView1.DataSource = list;
        for (int i = 0; i < 100; i++)
        {
            list.Add(new Widget { MyProperty = i });
        }
    }

    private void InitializeComponent()
    {
        this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();
        this.dataGridView1 = new System.Windows.Forms.DataGridView();
        this.tableLayoutPanel1.SuspendLayout();
        ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).BeginInit();
        this.SuspendLayout();
        // 
        // tableLayoutPanel1
        // 
        this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 20F));
        this.tableLayoutPanel1.Controls.Add(this.dataGridView1, 0, 1);
        this.tableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill;
        this.tableLayoutPanel1.RowCount = 2;
        this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 30F));
        this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
        // 
        // dataGridView1
        // 
        this.dataGridView1.Dock = System.Windows.Forms.DockStyle.Fill;
        // 
        // Form1
        // 
        this.ClientSize = new System.Drawing.Size(976, 518);
        this.Controls.Add(this.tableLayoutPanel1);
        this.tableLayoutPanel1.ResumeLayout(false);
        ((System.ComponentModel.ISupportInitialize)(this.dataGridView1)).EndInit();
        this.ResumeLayout(false);
    }

I tried adding this.tableLayoutPanel1.AutoScroll = true; which showed it was the data grid that was not resizing, the panel scroll bar was correctly placed and not cut off.

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Upvotes: 2

Views: 1778

Answers (2)

Shao Skywalker
Shao Skywalker

Reputation: 21

I solved this by wrapping the datagridview inside a panel before putting it in the tablelayoutpanel.

Strangely this doesn't happen to all the datagridviews that I put into tablelayoutpanels.

Upvotes: 1

OhBeWise
OhBeWise

Reputation: 5454

Add this line in InitializeComponent and it should allow the grid to shrink to nothing, letting the scrollbars show as intended.

this.dataGridView1.Size = new System.Drawing.Size(0, 0);

Upvotes: 2

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