I use asp checkboxlist to have that result
But using html tag as item of the checkboxlist , asp is interpreting it as html. It works for simple text. Here is my result.
and here is the declaration and binding method
<asp:CheckBoxList ID="chklstreponse" runat="server">
</asp:CheckBoxList>
DataTable dtreponse = gq.GetRandom_Responses(Convert.ToInt32(idquest.Value));
chkList.DataSource = dtreponse;
chkList.DataTextField = "libelle";
chkList.DataValueField = "id";
chkList.DataBind();
I think you need to HtmlEncode the values in the RadioButtonList.
System.Net.WebUtility.HtmlEncode("<html>")
But you are binding a datatable directly, you either must do it in the source of the DataTable or loop all rows and encode them.
foreach (DataRow row in dtreponse.Rows)
{
row["libelle"] = System.Net.WebUtility.HtmlEncode(row["libelle"].ToString());
}
chkList.DataSource = dtreponse;
chkList.DataTextField = "libelle";
chkList.DataValueField = "id";
chkList.DataBind();
Try this.HtmlEncode makes sure that text is displayed correctly in the browser and not interpreted by the browser as HTML.
<asp:CheckBoxList ID="chklstreponse" runat="server"> </asp:CheckBoxList>
DataTable dtreponse = gq.GetRandom_Responses(Convert.ToInt32(idquest.Value));
chkList.DataSource = dtreponse;
chkList.DataTextField = Server.HtmlEncode("libelle");
chkList.DataValueField = "id";
chkList.DataBind();
I am working on an ASP.NET VB.NET web form - a reservation web application, in which only one aspx page and rest are user-control page.
At run-time of aspx page, user controls load as per step and name define in db, like in below link.
ASP.NET Custom user control to add dynamically
In the first step, the first user-control is bind in page-init which is used to shows reservation availability detail in .NET datalist control like (see images).
All the details are bind to generate run-time control via data-list's item_databound event.
ImageOfRoom (asp.net Image Control) - on click popup will open with scroll functionality
Name (direct databound)
Amenities (icon(s)) - dynamically add from db.
No. of room as per room type (asp.net dropdown control) - dynamically add from db and on selected index changed, need another dropdown bind in same row and on change of adult dropdown price will vary.
Total price (direct databound)
Book now (button)
Now issue is whenever any event of datalist(click on romm-image or dropdown selected index changed) fired, the dynamic control remove like ammenities, dynamic dropdown of other row etc.
What I tried as :- ispostback, relevant event of page-life cycle, ajax-jquery, viewstate.
I checked this also, But no luck. :
Dynamically added controls in Asp.Net
I analyze that, the user-control is always rebound and then event fired, but no datalist rebind and thus no - databound event fire and finally dynamic control is removed. If you wish, I will share the code too (but its huge code).
So question is how to retain the dynamic controls and its value when dropdown selected index changed or image click event fired in datalist in usercontrol?
I am not used update-panel, does that work? If yes, then please give sample data.
Good to answer with sample data. Even please suggest that if possible via any other control like grid-view or else, then I ready to change it.
Updated
This is my code
Load User Control code
In aspx page, usercontrol define to load another user control as per current step. This “uc” user control tag in aspx page.
<div id="divPlaceholder" runat="server">
<uc:DynamicControlHost ID="ucDynamicControlHost" runat="server" />
</div>
In page_load as well as page_prerender( ispostback ) , the below code execute to load runtime user-control.
public Control SetUserControlPath(string path)
{
Control c = null;
if (this.dynamicAllContent.Controls.Count > 0)
{
//Check that the new control is not the same as the current control
if (!this.UserControlPath.Equals(path))
{
//Remove the old item because we can not simply replace them!
this.dynamicPHAllContent.Controls.Clear();
c = Page.LoadControl(path + ".ascx");
c.ID = path;
//Add New Item
this.dynamicAllContent.Controls.Add(c);
lock (_userControlLockObject)
{
//Store the new path
_strUserControl = path;
}
}
}
else
{
c = Page.LoadControl(path + ".ascx");
c.ID = path;
this.dynamicAllContent.Controls.Add(c);
_strUserControl = path;
}
return c;
}
Structure of datalist in usercontrol
<asp:UpdatePanel ID="EmployeesUpdatePanel" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:DataList ID="dlLodgingAvailableDetails" ShowHeader="true" OnSelectedIndexChanged="dlLodgingAvailableDetails_SelectedIndexChanged" runat="server" CellPadding="2" CellSpacing="2" BorderWidth="1px" BorderColor="Black"
OnItemDataBound="dlLodgingAvailableDetails_ItemDataBound" BorderStyle="Solid" GridLines="Horizontal" HorizontalAlign="Justify">
<HeaderStyle CssClass="submit_butt"></HeaderStyle>
<HeaderTemplate>
Lodging Item Type Details
<asp:Button ID="btnBookRoom" runat="server" Text="Book Rooms" CssClass="submit_butt" OnClick="btnBookRoom_Click" />
</HeaderTemplate>
<ItemTemplate>
<table cellpadding="2" cellspacing="0" border="1" style="width: 100%";>
<tr>
<td style="width:170px">
<asp:ImageButton ID="imgLodging" OnClick="imgLodging_Click" commandargument='<%# Eval("ItemTypeId") %>'
runat="server" ImageUrl='<%# Eval("Photo") %>' Width="150px" Height="120px" />
</td>
<td style="width:180px">
<b>Name</b><br />
<span><%# Eval("ItemTypeName") %></span><br />
<b>Occupancy</b> <span><%# Eval("Occupancy") %></span>
<br />
<asp:panel ID="placeholderAmmenities" runat="server" Visible="True" ></asp:panel>
</td>
<td style="width:100px">
<b>Room</b><br />
<asp:hiddenfield runat="server" ID="hdnItemTypeId" Value='<%# Eval("LodgingItemTypeId") %>' />
<asp:DropDownList ID="ddlAvailable" runat="server"
AppendDataBoundItems="True" SelectedValue='<%# Bind("LodgingReservationsAvailable") %>' >
<asp:ListItem Value="0" Text="0"/>
<asp:ListItem Value="1" Text="1"/>
<asp:ListItem Value="2" Text="2"/>
</asp:DropDownList>
</td>
<td>
</td>
<td style="width:100px">
<div id="dvadult" runat="server"></div>
<asp:placeholder runat="server" ID="PlaceHolderAdult" ViewStateMode="Enabled" EnableTheming="False" Visible="True" ></asp:placeholder>
</td>
<td style="width:50px">
<asp:Label runat="server" ID="lblnumbernight" ></asp:Label>
</td>
<td style="width:50px">
<asp:placeholder ID="placeholderPrice" runat="server" Visible="True"></asp:placeholder>
</td>
<td style="width:50px">
<b>Total</b><br />
<asp:Label runat="server" ID="lblTotalAmount" ></asp:Label>
</td>
<td style="width:100px">
<asp:Button ID="btnBookRoom" runat="server" Text="Book Rooms" CssClass="submit_butt" />
</td>
</tr>
</table>
</ItemTemplate>
<SeparatorStyle BackColor="Lime" Font-Bold="False" Font-Italic="False" Font-Overline="False" Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Center" />
</asp:DataList>
</ContentTemplate>
</asp:UpdatePanel>
Datalist item data bound event code (its inside image binding , price related field add and also creating the dynamic control as per the condition)
protected void dlLodgingAvailableDetails_ItemDataBound(object sender, DataListItemEventArgs e)
{
try
{
if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
{
Image img = e.Item.FindControl("imgLodging") as Image;
if (img != null)
{
string bytesval = ((System.Data.DataRowView)(e.Item.DataItem)).Row.ItemArray[3].ToString();
if (string.IsNullOrWhiteSpace(bytesval)) return;
byte[] bytes = (byte[])((System.Data.DataRowView)(e.Item.DataItem)).Row.ItemArray[3];
string base64String = Convert.ToBase64String(bytes, 0, bytes.Length);
img.ImageUrl = "data:image/png;base64," + base64String;
}
DropDownList ddlList = e.Item.FindControl("ddlAvailable") as DropDownList;
Label lbldipositamount = e.Item.FindControl("lblTotalAmount") as Label;
Label lblnumbernight = e.Item.FindControl("lblnumbernight") as Label;
var PlaceHolderAmmenities = e.Item.FindControl("placeholderAmmenities") as Panel;
ddlList.Attributes.Add("onchange", " openLodgingNumber1(this,'" + ddlList.SelectedValue + "');");
int? LodgingItemTypeId = Convert.ToInt32(((System.Data.DataRowView)(e.Item.DataItem)).Row.ItemArray[1]);
DataSet ds = new DataSet();
ds = LodgingData.SelectLodgingItemTypeAmenityDateSet(LodgingItemTypeId);
DataTable dt = new DataTable();
if (ds != null)
{
dt = ds.Tables[0];
if (dt.Rows.Count > 0)
{
for (int j = 0; j < dt.Rows.Count; j++)
{
Image image = new Image();
image.ID = "imgAmmenities" + j + DateTime.Now.ToString();
string bytesval = dt.Rows[j]["AmenityIcon"].ToString(); //((System.Data.DataRowView)(e.Item.DataItem)).Row.ItemArray[4].ToStrin();
//if (string.IsNullOrWhiteSpace(bytesval)) return;
if (bytesval != string.Empty)
{
byte[] bytes = (byte[])dt.Rows[j]["AmenityIcon"];
string base64String = Convert.ToBase64String(bytes, 0, bytes.Length);
image.ImageUrl = "data:image/png;base64," + base64String;
image.Height = 20;
image.Width = 20;
image.EnableViewState = true;
PlaceHolderAmmenities.Controls.Add(image);
PlaceHolderAmmenities.Controls.Add(new LiteralControl(" "));
}
}
}
}
decimal PriceTotal = 0;
var PlaceHolderPrice = e.Item.FindControl("placeholderPrice") as PlaceHolder;
DataSet dsprice = new DataSet();
dsprice = LodgingData.SelectLodgingItemTypePrice(LodgingItemTypeId);
if (dsprice != null)
{
DataTable dtprice = new DataTable();
dtprice = dsprice.Tables[0];
if (dtprice.Rows.Count > 0)
{
DateTime fromdate = Convert.ToDateTime(txtFromDate.Text);
DateTime todate = Convert.ToDateTime(txtToDate.Text);
double daterange = ((todate - fromdate).TotalDays + 1);
lblnumbernight.Text = daterange.ToString();
//for (DateTime date = fromdate; date >= todate; date.AddDays(1))
for (int d = 0; d < Convert.ToInt32(daterange); d++ )
{
DateTime date = fromdate.AddDays(d);
//DataView dv = new DataView(dtprice);
DataTable dtprice1 = new DataTable();
DataRow[] rows = dtprice.Select("#" + date + "# >= PriceStartDate AND" + "#" + date + "# <= PriceEndDate");
if (rows.Length > 0)
{
dtprice1 = rows.CopyToDataTable();
}
if (dtprice1.Rows.Count > 0)
{
for (int j = 0; j < dtprice1.Rows.Count; j++)
{
Label lbl = new Label();
string dayofweek = dtprice1.Rows[j]["DayOfWeekId"].ToString();
if (dayofweek.Trim() == eDayOfWeek.All.ToString().Trim())
{
lbl.ID = "lbl" + j;
lbl.Text = dtprice1.Rows[j]["Price"].ToString();
PriceTotal += Convert.ToDecimal(dtprice1.Rows[j]["Price"]);
PlaceHolderPrice.Controls.Add(lbl);
PlaceHolderPrice.Controls.Add(new LiteralControl("<br />"));
}
else if (Convert.ToInt32(dayofweek) == Convert.ToInt32(date.DayOfWeek + 1))
{
lbl.ID = "lbl" + j;
lbl.Text = dtprice1.Rows[j]["Price"].ToString();
PriceTotal += Convert.ToDecimal(dtprice1.Rows[j]["Price"]);
PlaceHolderPrice.Controls.Add(lbl);
PlaceHolderPrice.Controls.Add(new LiteralControl("<br />"));
}
}
}
else
{
DataView dv1 = new DataView(dtprice);
dv1.RowFilter = "PriceStartDate IS NULL OR PriceEndDate IS NULL";
//dv1.RowFilter = "PriceStartDate == null and PriceEndDate == null";
DataTable dtprice2 = new DataTable();
dtprice2 = dv1.ToTable();
for (int j = 0; j < dtprice2.Rows.Count; j++)
{
Label lbl = new Label();
string dayofweek = dtprice2.Rows[j]["DayOfWeekId"].ToString();
if (dayofweek.Trim() == eDayOfWeek.All.ToString().Trim())
{
lbl.ID = "lbl" + j;
lbl.Text = dtprice2.Rows[j]["Price"].ToString();
PriceTotal += Convert.ToDecimal(dtprice2.Rows[j]["Price"]);
PlaceHolderPrice.Controls.Add(lbl);
PlaceHolderPrice.Controls.Add(new LiteralControl("<br />"));
}
else if (Convert.ToInt32(dayofweek) == Convert.ToInt32(date.DayOfWeek + 1))
{
lbl.ID = "lbl" + j;
lbl.Text = dtprice2.Rows[j]["Price"].ToString();
PriceTotal += Convert.ToDecimal(dtprice2.Rows[j]["Price"]);
PlaceHolderPrice.Controls.Add(lbl);
PlaceHolderPrice.Controls.Add(new LiteralControl("<br />"));
}
}
}
}
}
}
lbldipositamount.Text = PriceTotal.ToString();
// var amount = ((System.Data.DataRowView)(e.Item.DataItem)).Row.ItemArray[3];
int selectedvalue = Convert.ToInt32(ddlList.SelectedItem.Text);
if (selectedvalue != 0)
{
double totalamount = selectedvalue * Convert.ToDouble(PriceTotal);
lbldipositamount.Text = totalamount.ToString();
}
}
}
catch (Exception)
{
throw;
}
}
On dynamically genereted dropdown selection event fired
In above even add this dropdown dynamically, now when this control's event is called , further dynamic control is adding as per the condition.
Issue is this event remove the dynamic other control as well even for other row of the previous selection is hidden or lost , so we retain the dynamic control in any post back and event fire.
protected void ddlAvailable_SelectedIndexChanged(object sender, EventArgs e)
{
// if (UserControlTextBoxChanged != null) dlLodgingAvailableDetails_ItemDataBound(sender, e);
//dlLodgingAvailableDetails.ItemDataBound += new DataListItemEventHandler(dlLodgingAvailableDetails_ItemDataBound);
double amount = 0;
var ddlList = (DropDownList)sender;
var row = (DataListItem)ddlList.NamingContainer;
//get the Id of the row
DataSet ds = new DataSet();
int? Id = Convert.ToInt32(((HiddenField)row.FindControl("hdnItemTypeId")).Value);
double? tamount = Convert.ToDouble(((Label)row.FindControl("lblTotalAmount")).Text);
int? groupid = Convert.ToInt32(ddlLodgingGroup.SelectedValue);
int selectedvalue = Convert.ToInt32(ddlList.SelectedItem.Text);
DateTime? startdate = Convert.ToDateTime(txtFromDate.Text);
DateTime? enddate = Convert.ToDateTime(txtToDate.Text);
ds = LodgingData.SelectLodgingItemTypeDataSet(startdate, enddate, groupid);
DataTable dt = new DataTable();
DataView dv = new DataView();
if (ds != null)
{
dt = ds.Tables[0];
dv = dt.DefaultView;
dv.RowFilter = "LodgingItemTypeId=" + Id;
}
dt = dv.ToTable();
if (dt.Rows.Count > 0)
{
if (tamount != null)
{
amount = Convert.ToDouble(tamount);
}
}
//amount = Convert.ToDouble(((Label)row.FindControl("lblTotalAmount")).Text);
var PlaceHolder1 = ((PlaceHolder)row.FindControl("PlaceHolderAdult"));
double totalamount = 0;
if (selectedvalue != 0)
{
totalamount = selectedvalue * Convert.ToDouble(amount);
((Label)row.FindControl("lblTotalAmount")).Text = totalamount.ToString();
Label lblAdult = new Label();
lblAdult.ID = "lblAdult";
lblAdult.Text = "Adult";
lblAdult.Font.Bold = true;
PlaceHolder1.Controls.Add(lblAdult);
PlaceHolder1.Controls.Add(new LiteralControl("<br />"));
}
else
{
totalamount = amount;
}
for (int j = 0; j < selectedvalue; j++)
{
DropDownList ComboBox = new DropDownList();
ComboBox.ID = "ComboBox" + j;
ComboBox.AutoPostBack = false;
ComboBox.Attributes.Add("runat", "server");
ComboBox.Items.Add(new ListItem("0", "0"));
ComboBox.Items.Add(new ListItem("1", "1"));
ComboBox.Items.Add(new ListItem("2", "2"));
ComboBox.SelectedIndexChanged += new EventHandler(Dynamic_Method);
PlaceHolder1.Controls.Add(ComboBox);
PlaceHolder1.Controls.Add(new LiteralControl("<br />"));
}
}
I'm not sure how much this will solve for you, but here is an example of preserving a row of data in a gridview with a templatefield containing a dynamically generated dropdownlist
I broke the process into 2 parts
1) Save data currently in Gridview to a session variable
2) Recreate, source, and bind controls
Here's saving the values in the gridview. I use a recursive find control formula I found on this site (but don't remember from where) because my controls are generated and placed inside the gridview row without unique names. For ex. the tbxA that exists in row 1 is different than the tbxA in row 2. This may not apply to you - the key is to find all controls you want to save the values of.
Private Sub SaveValues()
Dim savedTable As New DataTable
savedTable.Columns.Add(New DataColumn("A"))
For i = 0 To GridView1.Rows.Count - 1
Dim existing(0) As Object
existing(0) = TryCast(FindControlRecursive(GridView1.Rows(i), "ddlA"), DropDownList).SelectedValue
savedTable.Rows.Add(existing)
Next
Session("GhostTable") = savedTable
End Sub
Then in Page_Load under(when it IS a postback) set the gridview datasource to the session variable, and databind it. This will trigger the following code for every row:
Keep in mind I also have the datasource of the dropdown list stored in a session variable on page load. This allows the datasource and databind to occur for the dropdown every time it is generated.
Protected Sub OnRowDataBound(sender As Object, e As GridViewRowEventArgs) Handles GridView1.RowDataBound
'Handles databinding of each gridview1 row ddl to gridview templatefield
If e.Row.RowType = DataControlRowType.DataRow Then
Dim ddlA As New DropDownList()
ddlA.DataSource = Session("lengthList")
ddlA.DataBind()
ddlA.ID = "ddlA"
ddlA.SelectedValue = TryCast(e.Row.DataItem, DataRowView).Row.Item("A").ToString()
e.Row.Cells(1).Controls.Add(ddlA)
End if
End Sub
The ddlA.SelectedValue = TryCast(e.Row.DataItem, DataRowView).Row.Item("A").ToString() is what preserves the data after any postback. It determines which row is being bound, and then repopulates the control with whatever it previously was.
Hope this helps!
To make sure that the gridview is populated every time, call SaveValues in your event handlers.
Protected Sub ddlEmpNumber_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ddlEmpNumber.SelectedIndexChanged
'Do whatever on selected index change, then the following:
Call SaveValues()
GridView1.DataSource = Session("GhostTable")
GridView1.DataBind()
End Sub
Do it all in the page_init
You're wiring up the eventhandler in the ASP part like this:
<asp:DataList ID ... OnSelectedIndexChanged="dlLodgingAvailableDetails_SelectedIndexChanged" ...
and then in code of the handler attempting to re-wire the other ones:
ComboBox.SelectedIndexChanged += new EventHandler(Dynamic_Method);
Any time you do dynamic stuff on a webforms page, all setup including event handler wireup must be in the page_init. When events run, re-wiring won't work. For what you're doing (asp: ... and during a method call), it's ending up in the wrong part of the lifecycle and the right things aren't there to either add the javascript to call doPostback, or if that runs the __eventargs, etc. have data for controls that aren't built yet (event postbacks are checked for AFTER page init so you have to create the controls before that check) and therefore get ignored.
Note - probably you know this but you have to give controls unique IDs, generally can by done if you have a numeric primary key by just appending to the datarows. (might have to do this manually to child controls in user control, have had to do this with usercontrols in page_init, hopefully you won't)
I work on a big app that dynamically builds every screen in webforms (from a UI generator) in the page-init. All work is done in events, they work like a charm! Page_load is basically empty. Get to know the asp page lifecycle - it's a booger but easier than rewriting your app in HotTowel (although think about that the next app ;-)
Pretty good diagram: http://blogs.msdn.com/b/aspnetue/archive/2010/01/14/asp-net-page-life-cycle-diagram.aspx
Good luck!
I have done every thing as above suggested and other google search site too. But it refresh the data and every time it rebind all dynamic object in the grid.
Finally I have done every thing based on javascript and jquery, without that dynamic control always rebind which I don't want. So any body who are stuck in this situation forgot to r and d and work with javascript/ webmethod with dynamic controls.
Thank all who given an answer
Im trying to create a Gridpanel from codebehind with varying Columns.
No clue why it doesn't work, I'm not getting an error just the Columns won't appear.
Ive got a Store and a Gridpanel in Markup Code:
<ext:Store ID="Store_X" runat="server" AutoLoad="false" OnReadData="Store_X_refresh">
<Proxy>
<ext:PageProxy />
</Proxy>
</ext:Store>
[...]
<ext:GridPanel runat="server" ID="gp_center" Region="Center" StoreID="Store_X" Title="X Tracking" >
<ColumnModel >
<Columns>
<ext:RowNumbererColumn ID="RowNumbererColumn2" runat="server" />
</Columns>
</ColumnModel>
</ext:GridPanel>
In my Store_X_refresh i have a List<KeyValuePair<string, int>> fieldStringList = new List<KeyValuePair<string, int>>(); into wich i load what Columns I want (depending on options selected). Before I access Database im doing this:
Ext.Net.Model newModel = new Ext.Net.Model();
foreach (var item in fieldStringList)
{
newModel.Fields.Add(new Ext.Net.ModelField() { Name = item.Key });
gp_center.ColumnModel.Columns.Add(new Ext.Net.Column() { DataIndex = item.Key, ID = "col_" + item.Key, Text = item.Key, Width = item.Value });
}
Store_X.Model.Add(newModel);
when I debug it, the Models get the right Data but the Gridpanel on UI doesn't have the Columns...
When I put Columns in store/columnmodel manually in markupcode the Gridgets correct Data so its not about some .DataBind() nor my DB-functionality
If you are changing ColumnModel of a Grid during a DirectEvent you should Reconfigure it. Please, look at this example: http://examples.ext.net/#/GridPanel/Data_Presentation/Grid_and_Store_Reconfigure/
I have a grid that I need to add columns to dynamically (programatically).
I have been browsing Telerik forums as well as Google and im not able to find anything. Decompiling GridTemplateColumn shows that there should be ItemTemplate property however my VS throws an error.
Dim col As GridColumn = New GridButtonColumn()
col.UniqueName = stockLocation("LocationID").ToString()
col.HeaderText = stockLocation("Name").ToString()
col.ItemTemplate = ERROR HERE
rgGridCombinations.Columns.Add(col)
I'm trying to create a column that will look like following ASPX code.
<radg:GridTemplateColumn HeaderText="Stock" UniqueName="Stock" Visible="true" HeaderStyle-Width="10%">
<ItemTemplate>
<asp:TextBox ID="tbStock" runat="server" Width="100%" />
</ItemTemplate>
</radg:GridTemplateColumn>
How would I create this?
1) GridColumn does not have ItemTemplate property
2) You were assigning GridButtonColumn. Use GridTemplateColumn instead
Try this
Dim col = As New GridTemplateColumn()
col.UniqueName = "Stock"
col.HeaderText = "Stock"
col.ItemTemplate = <something here> 'should be an ITemplate
rgGridCombinations.Columns.Add(col)
For more information on how to create template, check here
There is a similar thread about this. But I want to have a multiline TextBox with automatic width (fit width to the larger row).
With this code I can have a multiline TextBox (automatic height)
<div style="float:left; white-space:nowrap ">
<asp:TextBox style="display:inline; overflow:hidden"
ID="txt1"
runat="server"
Wrap="false"
ReadOnly="true"
TextMode="MultiLine"
BorderStyle="none"
BorderWidth="0">
</asp:TextBox>
</div>
<div style="float:left">
<asp:TextBox ID="txt2" runat="server" Text="Example textbox"></asp:TextBox>
</div>
Code behind:
txt1.Rows= text.Split("|").Length ' Sets number of rows but with low performance
txt1.Text = text.Replace("|", Environment.NewLine)
Once again, thanks for your help.
You could try a linq approach:
string[] rows = text.Split('|');
int maxLength = rows.Max(x => x.Length);
txt1.Rows = rows.Length;
txt1.Columns = maxLength;
If you are open to using plugins like jquery,
you should look at autoresize plugins.
These will resize as a user types too.
Check out one autoresize
$(document).ready(function(){
$('textarea').autosize();
});
Joel Etherton give me a real good working code example of how to resolve this using Linq, but unfurtenly I can't use Linq.
Multiline TextBox auto Width using Linq (Joel Etherton's solution):
C#
string[] rows = text.Split('|');
int maxLength = rows.Max(x => x.Length);
txt1.Rows = rows.Length;
txt1.Columns = maxLength;
VB
Dim rows() As String = text.Split("|")
Dim maxLength As Integer = rows.Max(Function(x) x.Length)
txt1.Rows = rows.Length
txt1.Columns = maxLength
text = text.Replace("|", Environment.NewLine)
txt1.Text = text
Multiline TextBox auto Width solution 2
To achieve this "manually", I did this method to know the larger row's lenght. Is not the most efficiente one, but It worked for me:
Dim textRows() As String = text.Split("|")
For Each row As String In textRows
row = row.Trim
textToDisplay = String.Format("{0}{1}{2}", textToDisplay, row, Environment.NewLine)
If row.Length > maxRowLenght Then
maxRowLenght = row.Length
End If
Next
txt1.Rows = textRows.Length
txt1.Columns = maxRowLenght
txt1.Text = textToDisplay