MSDN ASP.NET GridView 範例集 Group Row 部份程式碼修正

最新推荐文章于 2025-12-11 23:29:47 发布

最新推荐文章于 2025-12-11 23:29:47 发布 · 88 阅读

文章标签：

#ASP.net #.net #ASP

本文修正了发布于MSDN上关于ASP.NET GridView控件中GroupRow部分的示例代码错误，并提供了正确的实现方式，特别是针对泛型List的使用进行了详细说明。

可能因為排版緣故,導致刊登於MSDN上的ASP.NET GridView 範例集中Group Row的部份程式碼有錯誤,

特於此列出正確的程式碼(主要是泛型List的泛型參數問題,由於使用了<,> 符號,可能於排版時漏掉了).

Group Row 程式碼

private void PrepareGroup()
{
int lastSupID = -1;
GridViewRow currentRow = null;
List<GridViewRow> <gridviewrow></gridviewrow>tempModifyRows = new List<GridViewRow><gridviewrow></gridviewrow>();
foreach (GridViewRow row in GridView1.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
if (currentRow == null)
{
currentRow = row;
int.TryParse(row.Cells[2].Text, out lastSupID);
continue;
}

int currSupID = -1;
if (int.TryParse(row.Cells[2].Text, out currSupID))
{
if (lastSupID != currSupID)
{
currentRow.Cells[2].Attributes["rowspan"] = (tempModifyRows.Count+1).ToString();
currentRow.Cells[2].Attributes["valign"] = "center";
foreach (GridViewRow row2 in tempModifyRows)
row2.Cells.RemoveAt(2);
lastSupID = currSupID;
tempModifyRows.Clear();
currentRow = row;
lastSupID = currSupID;
}
else
tempModifyRows.Add(row);
}
}
}

if (tempModifyRows.Count > 0)
{
currentRow.Cells[2].Attributes["rowspan"] = (tempModifyRows.Count + 1).ToString();
currentRow.Cells[2].Attributes["valign"] = "center";
foreach (GridViewRow row2 in tempModifyRows)
row2.Cells.RemoveAt(2);
}
}

protected void GridView1_PreRender(object sender, EventArgs e)
{
PrepareGroup();
}

抱歉造成各位讀者的困擾了 ^_^