动态添加按钮到网格视图

Question

我的方案是我动态创建数据表并将后者添加到数据集并在网格视图中显示它。 我想在每行的末尾添加一个“添加到图表”按钮，它将具有其他功能。

我创建动态数据表的代码：

    try
        {


            response = client.query(a);

            ///List of fields
            var fields = response.@return.fields;

            //loop through each column
            foreach (String column in fields)
            {
                dtservice.Columns.Add(column);

            }

            ///List of value return as list of object
            var values = response.@return.values.ToList();


            ///get the first object from the list of object
            foreach (object item in values)
            {
                if (item == null) continue;

                foreach (PropertyInfo property in item.GetType().GetProperties())
                {

                    // do something with the property 
                    List<string> valueList = (List<string>)(property.GetValue(item, null));
                    dtservice.Rows.Add(valueList.ToArray());


                }
            }


        }
        catch (Exception error)
        {

            var b = error.ToString();
        }

        //create dataset
        DataSet test= new DataSet();

        test.Tables.Add(dtservice);

        return test;


    }

我尝试使用下面的代码，但点击按钮消失。

    protected void WorkList_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        // CHECK IF ROW IS NOT IN EDIT MODE
        if (e.Row.RowType == DataControlRowType.DataRow)

        {
            // CREATE A Button
            Button btn = new Button();
            btn.ID = "btnEstados";
            btn.Text = "Estados";

            // ADD BUTTON TO EACH ROW IN 2ND COLUMN
            e.Row.Cells[7].Controls.Add(btn);
        }
    }

第二个问题现在我能够获得每一行的按钮，但使用下面的代码，我得到列的计数等于1.它实际上只读取html中添加的静态列而不是动态生成的静态列。

 //adding column to datatable
        for (int row = 0; row < test.Columns.Count - 1; row++)
        {

            ServiceName.Columns.Add(test.HeaderRow.Cells[row].Text, typeof(string));

        }

Answer 1

这是关于如何在Gridview中添加按钮的另一种方法。

<asp:GridView ID="WorkList" runat="server" Width="100%" AutoGenerateColumns="false" AllowPaging="false" AllowSorting="false"
                            EmptyDataText="No Record Found"
                            OnRowCreated="WorkList_RowCreated"
                            OnRowCommand="WorkList_RowCommand"
                            OnRowCancelingEdit="WorkList_RowCancelingEdit"
                            OnRowEditing="WorkList_RowEditing">

                            <AlternatingRowStyle CssClass="alt" BackColor="#CCFF99"></AlternatingRowStyle>
                            <Columns>

                                <asp:ButtonField ButtonType="Button" CommandName="Estados" HeaderText="" ShowHeader="True" Text="Estados" ItemStyle-Width="30px" />
                            </Columns>
                            <HeaderStyle BackColor="#808080" ForeColor="#48D1CC" />

                        </asp:GridView>

在WorkList_RowCommand中：

int index = Convert.ToInt32(e.CommandArgument);
GridViewRow gvRow = WorkList.Rows[index];
WorkList.Rows[index];
 if (e.CommandName == "Estados")
 {
      //your code here like `gvRow.Cells[0].Text`
 }

确保您的WorkList声明的属性存在于您的代码中。

希望能帮助到你。