我无法获取label.text的详细信息，但能够第一次获取文本框值 [英] I'm unable to get the details of my labels.text , but are able to get the text box value the first time

问题描述

recently I changed my GridView so it was able to add rows dynamically. The problem is, when I insert the data, I'm getting blank value at first.

I'm unable to get the details of my labels.text , but are able to get the text box value the first time. When the loop continues, I get 1 row of value from the label and 2 rows of value from the text box.

GridViewRow row = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal);

    TableHeaderCell cell = new TableHeaderCell();
    cell.Text = "Details";
    cell.ColumnSpan = 3;
    row.Controls.Add(cell);


    cell = new TableHeaderCell();
    cell.Text = "Year 2018";
    cell.ColumnSpan = 4;
    row.Controls.Add(cell);

    cell = new TableHeaderCell();
    cell.ColumnSpan = 4;
    cell.Text = "Year 2019";
    row.Controls.Add(cell);

     cell = new TableHeaderCell();
    cell.Text = "Others";
    cell.ColumnSpan = 3;
    row.Controls.Add(cell);

我尝试过：

What I have tried:

Label CenterId = (Label)row.FindControl("CenterId") as Label;
              string CenterId_no = Convert.ToString(CenterId.Text);


            TextBox txt_lastyearonDate = (TextBox)row.FindControl("txt_lastyearonDate") as TextBox;

            float py_ondte = float.Parse(txt_lastyearonDate.Text);

推荐答案

你没有告诉我们任何具有任何特定ID的控件 - 那么是什么让你认为FindControl会返回任何内容？

尝试

You don't show us any control with any specific ID - so what makes you think that FindControl will return anything?
Try

Label CentreID = row.Cells[1].Controls[0] as Label;

或

Or

string s = (string) row.Cells[1].Value;

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