RowSizingAutoMaxLines一排超网格基础设施

Question

我正在使用此代码，这是一个不好的例子，但可以测试，但最终会更改所有行。

我只需要更改选择的行。

if (e.Cell.Column.Layout.Override.RowSizingAutoMaxLines == 4)
{
       e.Cell.Column.Layout.Override.RowSelectorStyle = Infragistics.Win.HeaderStyle.XPThemed;
       e.Cell.Column.Layout.Override.RowSizingAutoMaxLines = 20;
}
else
{
       e.Cell.Column.Layout.Override.RowSelectorStyle = Infragistics.Win.HeaderStyle.Default;
       e.Cell.Column.Layout.Override.RowSizingAutoMaxLines = 4;
 }

Answer 1

将RowSizingAutoMaxLines设置为Override会将其设置为所有行。 相反，您可以做的是计算必要的行高并将其设置为当前行， 前提是您事先已将RowSizing设置为Free或AutoFree。 您可以使用Graphics MeasureString来计算一行的高度，然后设置每一行的高度，如下所示：

首先设置网格：

    private void UltraGrid1_InitializeLayout(object sender, InitializeLayoutEventArgs e)
{
    //  I think you need row selectors as you set their style
    e.Layout.Override.RowSelectors = Infragistics.Win.DefaultableBoolean.True;

    //  Set the RowSizing to some Free value to allow each row to has its onw height
    e.Layout.Override.RowSizing = RowSizing.AutoFree;

    //  I think you have multiline text in the cells, so you should set CellMultiLine to true too
    e.Layout.Override.CellMultiLine = Infragistics.Win.DefaultableBoolean.True;
}

然后测量一行并设置行的高度：

//  Calculate the height of one line of text
var oneLineHeight = float.MinValue;
using(Graphics g = this.ultraGrid1.CreateGraphics())
{
    oneLineHeight = g.MeasureString("Jj", this.ultraGrid1.Font, int.MaxValue, StringFormat.GenericTypographic).Height;

}

// Set the row selectors' style and the row's height
if(e.Cell.Column.Layout.Override.RowSelectorStyle == Infragistics.Win.HeaderStyle.Default)
{
    e.Cell.Column.Layout.Override.RowSelectorStyle = Infragistics.Win.HeaderStyle.XPThemed;

    //  Add 4 to add some padding
    e.Cell.Row.Height = (int)(oneLineHeight * 20 + 4);
}
else
{
    e.Cell.Column.Layout.Override.RowSelectorStyle = Infragistics.Win.HeaderStyle.Default;

    //  Add 4 to add some padding
    e.Cell.Row.Height = (int)(oneLineHeight * 4 + 4);
}