RowSizingAutoMaxLines one row Ultragrid Infragistics

Question

我正在使用此代码，它是一个不好的例子，但它可以测试，但它最终会更改所有行。

我只需要改变所选的行。

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

在Override上设置RowSizingAutoMaxLines会将其设置为所有行。您可以做的是计算必要的行高并将其设置为当前行，假设您已预先将RowSizing设置为Free或AutoFree。您可以使用图形MeasureString来计算一行的高度和设置，则每行的高度是这样的：

首次设置网格：

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，并设置该行的高度：

// 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); 
}