Question

我的情况是我正在动态创建一个数据表，并将该数据表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，该按钮将具有其他功能。

我用于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，但单击后按钮消失。

    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，但是使用下面的代码，我得到的列数等于1。它实际上只读取html中添加的静态列，而不读取生成的那一列动态地

 //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

这是在Gridview中添加按钮的另一种方式。

<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`
 }

确保后面的代码中存在WorkList声明的属性。

希望有帮助。

动态将按钮添加到网格视图

1 个答案: