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我有一个 MDIChild 表单中的 datagridview，我将通过调用以下函数在表单加载时对其进行自定义，

private void FillDetails()
    {
        dgvDefCofig.DataSource = dbLayer.tblDefConfigSelectAll().Tables[0];
        var columnheaderstyle = new DataGridViewCellStyle();
        columnheaderstyle.Font = new Font("Arial", 9, FontStyle.Regular);
        dgvDefCofig.ColumnHeadersDefaultCellStyle = columnheaderstyle;
        dgvDefCofig.Columns[dgvDefCofig.Columns.Count - 1].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
        SetLineColumnDetails("ID", "", 0, DataGridViewContentAlignment.MiddleLeft, false);
        SetLineColumnDetails("DC_NoOfSmallBoxes", "No of Boxes", 50, DataGridViewContentAlignment.MiddleLeft, true);
        SetLineColumnDetails("DC_LabelPath", "Label path", 250, DataGridViewContentAlignment.MiddleLeft, true);
        SetLineColumnDetails("DC_Active", "Active", 100, DataGridViewContentAlignment.MiddleRight, true);
        SetLineColumnDetails("DC_InsertedDateTime", "Inserted Date", 100, DataGridViewContentAlignment.MiddleRight, true);
        SetLineColumnDetails("DC_ProdDate", "Producation Date", 100, DataGridViewContentAlignment.MiddleRight, true);
        SetLineColumnDetails("DC_ProdShift", "Shift", 0, DataGridViewContentAlignment.MiddleRight, false);
        SetLineColumnDetails("DC_CreatedBy", "Created By", 0, DataGridViewContentAlignment.MiddleRight, false);
        SetLineColumnDetails("DC_LastUpdateDate", "Last Updated", 0, DataGridViewContentAlignment.MiddleRight, false);
        SetLineColumnDetails("DC_LastUpdatedBy", "Lase Updated By", 100, DataGridViewContentAlignment.MiddleRight, true);
    }

    public void SetLineColumnDetails(string columnName, string headertext, int width,
                                     DataGridViewContentAlignment alignment, bool visible)
    {
        dgvDefCofig.Columns[columnName].Visible = visible;
        dgvDefCofig.Columns[columnName].HeaderText = headertext;
        dgvDefCofig.Columns[columnName].Width = width;
        dgvDefCofig.Columns[columnName].DefaultCellStyle.Alignment = alignment;
    }

但是，我收到了“OutOfMemoryException”。当我删除上述方法时，应用程序工作正常。为什么会这样？？

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1 回答 1

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发生这种情况很可能是 

dgvDefCofig.DataSource = dbLayer.tblDefConfigSelectAll().Tables[0];

将如此多的数据推送到DataGrid这使您的应用程序爆炸式增长。

SQL通过更多“切片”查询限制您在屏幕上加载的数据量。

于 2012-04-21T09:46:27.117 回答