将下拉元素拉入 datagridview 行

编程

2024.01.20

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I want to pull all the items in the drop-down menu one by one into the datagridview rows using Selenium in C#. Can you help me on this issue?

我尝试过的：

我尝试了以下代码。

I tried the code below, but these codes pull all elements into one line.

<pre lang="C#">
List<IWebElement> selectElements = drv.FindElements(By.Id("dersler"));
foreach (IWebElement select in selectElements)
{
    var selectElement = new SelectElement(select);
    List<string> lst = new List<string>();
    lst.Add(select.Text);
    DataTable dt = new DataTable();
    DataColumn dtcol = new DataColumn(select.Text);
    dt.Columns.Add(dtcol);
    for (int i = 0; i < lst.Count; i++)
    {
       dataGridView1.DataSource = dt;
    }

}

解决方案1

根据您的代码片段，有几个问题可能会导致意外行为。你正在创建一个 DataTable 在循环内，导致它在每次迭代时重置。要解决此问题，请移动 DataTable 在循环外创建并设置 DataTable 作为 DataSource 循环之后。以下是您的代码的更新版本：

C＃

List<IWebElement> selectElements = drv.FindElements(By.Id("dersler"));
// Create DataTable outside the loop to avoid resetting it in each iteration
DataTable dt = new DataTable();
foreach (IWebElement select in selectElements)
{
    var selectElement = new SelectElement(select);

    // Create a new column for each dropdown
    DataColumn dtcol = new DataColumn(selectElement.Text);
    dt.Columns.Add(dtcol);

    // Create a new row for each option in the dropdown
    foreach (IWebElement option in selectElement.Options)
    {
        DataRow row = dt.NewRow();
        row[selectElement.Text] = option.Text;
        dt.Rows.Add(row);
    }
}
// Set the DataTable as the DataSource after the loop
dataGridView1.DataSource = dt;