Question

我正在尝试从代码中将表行添加到asp.net表中。我尝试了下面的代码。添加了修改后的代码。但是将错误收到＆＃34; Sys.WebForms.PageRequestManagerServerErrorException：发生意外错误。＆＃34;

 int rowCnt = 5;
            // Current row count.
            int rowCtr;
            // Total number of cells per row (columns).
            int cellCtr;
            // Current cell counter.
            int cellCnt = 4;
    int ctr=0;
         ctr = ctr + 1;
foreach (){
                                        TableRow tRow = new TableRow();
                                        table.Rows.Add(tRow1);

                                        TableCell artifactCell = new TableCell();
                                        artifactCell.ColumnSpan = 4;
                                        tRow.Cells.Add(artifactCell);
                                                                               artifactCell.Controls.Add(new LiteralControl("Artifact " + ctr + " : "));
                                        // Create a Hyperlink Web server control and add it to the cell.
                                        System.Web.UI.WebControls.HyperLink h = new HyperLink();
                                        h.Text = artifact.LookupValue;
                                                                             artifactCell.Controls.Add(h);

                                        TableCell uploadCell = new TableCell();
                                        uploadCell.ColumnSpan = 4;
                                        tRow.Cells.Add(uploadCell);

                                        FileUpload fu = new FileUpload();
                                        fu.ID = "fu_" + BU +"_" + artifact.LookupValue + artifact.LookupId;
                                        fu.AllowMultiple = false;

                                        Button btnUpload = new Button();
                                        btnUpload.ID = "btnUpload_"+ BU + "_" + artifact.LookupValue + artifact.LookupId;
                                        btnUpload.Text = "Upload";
                                        btnUpload.Click += new EventHandler(this.btnUpload_Click);
                                        uploadCell.Controls.Add(fu);
                                        uploadCell.Controls.Add(btnUpload);




                                        for (rowCtr = 1; rowCtr <= rowCnt; rowCtr++)
                                        {
                                            // Create a new row and add it to the table.
                                            TableRow tRow1 = new TableRow();
                                            table.Rows.Add(tRow1);
                                            for (cellCtr = 1; cellCtr <= cellCnt; cellCtr++)
                                            {
                                                // Create a new cell and add it to the row.
                                                TableCell tCell = new TableCell();
                                                tRow.Cells.Add(tCell);

                                                // Create a Hyperlink Web server control and add it to the cell.
                                                System.Web.UI.WebControls.HyperLink hyp = new HyperLink();
                                                hyp.Text = rowCtr.ToString();
                                                hyp.ID = "hyp_" + BU + "_" + artifact.LookupValue + artifact.LookupId;
                                                hyp.NavigateUrl = "http://www.microsoft.com/net";
                                                tCell.Controls.Add(hyp);

                                                HiddenField hid = new HiddenField();                                           
                                                hid.ID = "hdn_" + BU + "_" + artifact.LookupValue + artifact.LookupId;
                                                tCell.Controls.Add(hid);

                                                Label lbll = new Label();
                                                lbll.ID = "lblError_"+ BU + "_" + artifact.LookupValue + artifact.LookupId;
                                                lbll.ForeColor = System.Drawing.Color.Red;                                            
                                                tCell.Controls.Add(lbll);

                                            }
                                        }

这是创建超链接和隐藏字段。但是它如下所示排在一行，数据以超链接显示

1:1 1:2 1:3 1:4 2:1 2:2 2:3 2:4 3:1 3:2 3:3 3:4 4:1 4:2 4:3 4:4 5:1 5:2 5:3 5:4

我想要实现的目标是：

First TR
hyperlink 1
hidden field 1

Second TR
hyperlink2
hidden field 2

如何动态添加表格行？感谢

Answer 1

除了@Adam提到的拼写错误之外，将tRow1更改为tRow。你的代码似乎工作：输出是这样的：

1:1 1:2 1:3 1:4
2:1 2:2 2:3 2:4
3:1 3:2 3:3 3:4
4:1 4:2 4:3 4:4
5:1 5:2 5:3 5:4

更新：在不进行查找的情况下将内循环更改为静态值。这是代码：

for (rowCtr = 1; rowCtr <= rowCnt; rowCtr++)
        {
            // Create a new row and add it to the table.
            TableRow tRow1 = new TableRow();
            table.Rows.Add(tRow1);
            for (cellCtr = 1; cellCtr <= cellCnt; cellCtr++)
            {
                // Create a new cell and add it to the row.
                TableCell tCell = new TableCell();
                tRow1.Cells.Add(tCell);

                // Create a Hyperlink Web server control and add it to the cell.
                System.Web.UI.WebControls.HyperLink hyp = new HyperLink();
                hyp.Text = rowCtr.ToString();
                hyp.ID = "hyp_"+rowCtr+cellCtr;
                hyp.NavigateUrl = "http://www.microsoft.com/net";
                tCell.Controls.Add(hyp);

                HiddenField hid = new HiddenField();
                hid.ID = "hdn_" + rowCtr + cellCtr;
                tCell.Controls.Add(hid);

                Label lbll = new Label();
                lbll.ID = "lblError_" + rowCtr + cellCtr;
                lbll.ForeColor = System.Drawing.Color.Red;
                tCell.Controls.Add(lbll);

            }

        }

Answer 2

以下代码看起来好像包含错误：

TableRow tRow1 = new TableRow();
table.Rows.Add(tRow);

在循环中将tRow更改为tRow1，看起来应该可以正常工作

tRow和tRow1不是最好的变量名称。这很可能是你问题的最终根源，选择更具描述性的名字！

动态添加5个tablerow

2 个答案: