我有一个动态的表单创建者，用户可以在其中添加自己的问题和答案以及控件（文本框，下拉列表和复选框）。
但是，他们需要能够在gridview中显示问题的列标题为问题，而gridview行则包含控件。需要添加新行并填充每行的控件，然后提交到数据库。有没有人在线上看到与此类似的内容作为教程，反对这里。 示例：
Username UserAge
1 TextboxControl DropdownControl addrow
1 TextboxControl DropdownControl addrow
1 TextboxControl DropdownControl addrow
SubmitButton
Code
.aspx page
<asp:GridView ID="gvQuestions" runat="server" OnRowCreated="gvQuestions_RowCreated" OnRowDataBound="gvQuestions_RowDataBound" Style="width: 780px;">
</asp:GridView>
隐藏代码
private void SetInitialRow()
{
var GetQuestionsData = new OncologyInformation().SelectOncologyQuestions(Request.QueryString["ProjectID"].ToString(), "1");
var GetQuestionsDatabySection = from qd in GetQuestionsData where qd.SectionName == "VISIT B" select qd;
DataTable dt = new DataTable();
DataRow dr = null;
foreach (OncologyQuestionBuilder OQB in GetQuestionsDatabySection)
{
dt.Columns.Add(new DataColumn(OQB.QuestionText, typeof(string)));
}
var getContols = GetQuestionsDatabySection;
for (int i = 1; i <= 1; i++)
{
dr = dt.NewRow();
foreach (OncologyQuestionBuilder OQB in getContols)
{
dr[OQB.QuestionText] = OQB.DynamicAttributeId;
}
dt.Rows.Add(dr);
}
//Store the DataTable in ViewState
ViewState["CurrentTable"] = dt;
gvQuestions.GridLines = GridLines.None;
gvQuestions.ShowFooter = true;
gvQuestions.DataSource = dt;
gvQuestions.DataBind();
}
private void AddNewRowToGrid()
{
try
{
if (ViewState["CurrentTable"] != null)
{
DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
DataRow drCurrentRow = null;
if (dtCurrentTable.Rows.Count > 0)
{
for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
{
var GetQuestionsData = new OncologyInformation().SelectOncologyQuestions(Request.QueryString["ProjectID"].ToString(), "1");
var GetQuestionsDatabySection = from qd in GetQuestionsData where qd.SectionName == "Test B" select qd;
drCurrentRow = dtCurrentTable.NewRow();
foreach (OncologyQuestionBuilder OQB in GetQuestionsDatabySection)
{
drCurrentRow[OQB.QuestionText] = OQB.DynamicAttributeId;
}
}
//add new row to DataTable
dtCurrentTable.Rows.Add(drCurrentRow);
//Store the current data to ViewState
ViewState["CurrentTable"] = dtCurrentTable;
//Rebind the Grid with the current data
gvQuestions.DataSource = dtCurrentTable;
gvQuestions.DataBind();
}
}
else
{
Response.Write("ViewState is null");
}
}
catch (Exception e)
{
}
//Set Previous Data on Postbacks
SetPreviousData();
}
private void SetPreviousData()
{
try
{
int rowIndex = 0;
if (ViewState["CurrentTable"] != null)
{
DataTable dt = (DataTable)ViewState["CurrentTable"];
if (dt.Rows.Count > 0)
{
for (int i = 0; i < dt.Rows.Count; i++)
{
//extract the TextBox values
var box1 = gvQuestions.Rows[rowIndex].Cells[0].Text;
//box1.Text = dt.Rows[i]["Column1"].ToString();
//box2.Text = dt.Rows[i]["Column2"].ToString();
//box3.Text = dt.Rows[i]["Column3"].ToString();
rowIndex++;
}
}
}
}
catch (Exception e)
{
}
}
protected void ButtonAdd_Click1(object sender, EventArgs e)
{
AddNewRowToGrid();
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
for (int i = 0; i < gvQuestions.Rows.Count; i++)
{
//extract the TextBox values
TextBox box1 = (TextBox)gvQuestions.Rows[i].Cells[1].FindControl("email");
TextBox box2 = (TextBox)gvQuestions.Rows[i].Cells[2].FindControl("FirstName");
TextBox box3 = (TextBox)gvQuestions.Rows[i].Cells[3].FindControl("LastName");
if (box1.Text != null && box2 != null && box3 != null)
{
.....
}
}
Response.Redirect("invitation-selection.aspx?env=" + Session["EventType"].ToString() + "&evID=" + Session["EventID"].ToString(), true);
}
protected void gvQuestions_RowCreated(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Footer)
{
Button btn = new Button();
btn.Text = "Add Row ";
btn.CssClass = "addBtn";
btn.Click += new EventHandler(ButtonAdd_Click1);
e.Row.Cells[0].Controls.Add(btn);
}
}
protected void gvQuestions_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Header)
{
foreach (TableCell tc in e.Row.Cells)
{
tc.CssClass = "casetableheaderstudyList";
}
}
else if (e.Row.RowType == DataControlRowType.DataRow)
{
var cellCount = e.Row.Cells.Count;
if (cellCount >= 1)
{
var ControlType = e.Row.Cells[0].Text;
var DataTypeId = e.Row.Cells[0].Text;
string rowCellID = e.Row.RowIndex.ToString() + "0";
e.Row.Cells[0].Controls.Add(getControl(DataTypeId, rowCellID));
}
if (cellCount >= 2)
{
var ControlType = e.Row.Cells[1].Text;
var DataTypeId = e.Row.Cells[1].Text;
string rowCellID = e.Row.RowIndex.ToString() + "1";
e.Row.Cells[1].Controls.Add(getControl(DataTypeId, rowCellID));
}
if (cellCount >= 3)
{
var ControlType = e.Row.Cells[2].Text;
var DataTypeId = e.Row.Cells[2].Text;
string rowCellID = e.Row.RowIndex.ToString() + "2";
e.Row.Cells[2].Controls.Add(getControl(DataTypeId, rowCellID));
}
if (cellCount >= 4)
{
var ControlType = e.Row.Cells[3].Text;
var DataTypeId = e.Row.Cells[3].Text;
string rowCellID = e.Row.RowIndex.ToString() + "3";
e.Row.Cells[3].Controls.Add(getControl(DataTypeId, rowCellID));
}
if (cellCount >= 5)
{
var ControlType = e.Row.Cells[4].Text;
var DataTypeId = e.Row.Cells[4].Text;
string rowCellID = e.Row.RowIndex.ToString() + "4";
e.Row.Cells[4].Controls.Add(getControl(DataTypeId, rowCellID));
}
if (cellCount >= 6)
{
var ControlType = e.Row.Cells[5].Text;
var DataTypeId = e.Row.Cells[5].Text;
string rowCellID = e.Row.RowIndex.ToString() + "5";
e.Row.Cells[5].Controls.Add(getControl(DataTypeId, rowCellID));
}
if (cellCount >= 7)
{
var ControlType = e.Row.Cells[6].Text;
var DataTypeId = e.Row.Cells[6].Text;
string rowCellID = e.Row.RowIndex.ToString() + "6";
e.Row.Cells[6].Controls.Add(getControl(DataTypeId, rowCellID));
}
if (cellCount >= 8)
{
var ControlType = e.Row.Cells[7].Text;
var DataTypeId = e.Row.Cells[7].Text;
string rowCellID = e.Row.RowIndex.ToString() + "7";
e.Row.Cells[7].Controls.Add(getControl(DataTypeId, rowCellID));
}
if (cellCount >= 9)
{
var ControlType = e.Row.Cells[8].Text;
var DataTypeId = e.Row.Cells[8].Text;
string rowCellID = e.Row.RowIndex.ToString() + "8";
e.Row.Cells[8].Controls.Add(getControl(DataTypeId, rowCellID));
}
if (cellCount >= 10)
{
var ControlType = e.Row.Cells[9].Text;
var DataTypeId = e.Row.Cells[9].Text;
string rowCellID = e.Row.RowIndex.ToString() + "9";
e.Row.Cells[9].Controls.Add(getControl(DataTypeId, rowCellID));
}
foreach (TableCell tc in e.Row.Cells)
{
tc.BorderStyle = BorderStyle.None;
tc.BorderWidth = 0;
//tc.BorderColor = System.Drawing.Color.Transparent;
tc.CssClass = "casetableColumsStudyList";
}
}
}