Category: ASP.NET

25 May 2016 01:20

Joined:	24/05/2016
Level:	Bronze
Points:	0

Points:	5

How to save values of dynamic textboxes in database via asp.net

Hi friends
i m creating dynamic textboxes and the values of those textboxes want to save in db.
how can i do it ?
please anybody any source or solution or link.

protected void Page_Load(object sender, EventArgs e)
{
Literal lt;
Label lb;

//Dynamic TextBox Panel
pnlTextBox = new Panel();
pnlTextBox.ID = "pnlTextBox";
pnlTextBox.BorderWidth = 1;
pnlTextBox.Width = 300;
this.form1.Controls.Add(pnlTextBox);
lt = new Literal();
lt.Text = "<br />";
this.form1.Controls.Add(lt);
lb = new Label();
lb.Text = "Dynamic TextBox<br />";
pnlTextBox.Controls.Add(lb);

//Button To add TextBoxes
Button btnAddTxt = new Button();
btnAddTxt.ID = "btnAddTxt";
btnAddTxt.Text = "Add Features";
btnAddTxt.Click += new System.EventHandler(btn1Add_Click);
this.form1.Controls.Add(btnAddTxt);
if (IsPostBack)
{
RecreateControls("txtDynamic", "TextBox");
// RecreateControls("ddlDynamic", "DropDownList");
}

}

protected void btn1Add_Click(object sender, EventArgs e)
{
Button btn = (Button)sender;
int cnt = FindOccurence("txtDynamic");
TextBox txt = new TextBox();
txt.ID = "txtDynamic-" + Convert.ToString(cnt + 1);
pnlTextBox.Controls.Add(txt);

Literal lt = new Literal();
lt.Text = "<br />";
pnlTextBox.Controls.Add(lt);
}
private int FindOccurence(string substr)
{
string reqstr = Request.Form.ToString();
return ((reqstr.Length - reqstr.Replace(substr, "").Length) / substr.Length);
}
private void RecreateControls(string ctrlPrefix, string ctrlType)
{
string[] ctrls = Request.Form.ToString().Split('&');
int cnt = FindOccurence(ctrlPrefix);
if (cnt > 0)
{
Literal lt;
for (int k = 1; k <= cnt; k++)
{
for (int i = 0; i < ctrls.Length; i++)
{
if (ctrls[i].Contains(ctrlPrefix + "-" + k.ToString()))
{
string ctrlName = ctrls[i].Split('=')[0];
string ctrlValue = ctrls[i].Split('=')[1];

//Decode the Value
ctrlValue = Server.UrlDecode(ctrlValue);

if (ctrlType == "TextBox")
{
TextBox txt = new TextBox();
txt.ID = ctrlName;
txt.Text = ctrlValue;
pnlTextBox.Controls.Add(txt);
lt = new Literal();
lt.Text = "<br />";
pnlTextBox.Controls.Add(lt);
}

break;
}
}
}
}
}
protected void btnAdd_Click(object sender, EventArgs e)
{
ClsSubcategories1 obj = new ClsSubcategories1();
int result = 0;
try
{
obj.FeatureDesc = Convert.ToString(pnlTextBox.GroupingText[0].ToString());

result = obj.AddFeeture();

}
catch (Exception ex)
{
throw ex;
}
if (result != 0)
{
lblresult1.Text = "Saved Successfully";
}
else
{
lblresult1.Text = "Not Saved Please try again";
}
}

Server Error

Server Error in '/' Application.

Index was outside the bounds of the array.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IndexOutOfRangeException: Index was outside the bounds of the array.

Source Error:

Line 293: catch (Exception ex)
Line 294: {
Line 295: throw ex;
Line 296: }
Line 297: if (result != 0)

Source File: d:\C#Practice\StoreInventory\StoreInventory\Subcategories.aspx.cs Line: 295

Stack Trace:

[IndexOutOfRangeException: Index was outside the bounds of the array.]
StoreInventory.Subcategory.btnAdd_Click(Object sender, EventArgs e) in d:\C#Practice\StoreInventory\StoreInventory\Subcategories.aspx.cs:295
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +9750842
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +196
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +35
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1724

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18408

#766163

25 May 2016 04:37

Joined:	15/12/2015
Level:	Gold
Points:	1308

Points:	4

Hi,
Line pnlTextBox.GroupingText[0].ToString() is giving this error so replace your btnAdd_Click() event with this one:


 protected void btnAdd_Click(object sender, EventArgs e)
        {
            ClsSubcategories1 obj = new ClsSubcategories1();
            int result = 0;
            try
            {
                //string sz= Convert.ToString(pnlTextBox.GroupingText[0].ToString());
                foreach (Control cCont in pnlTextBox.Controls)
                {
                    if (cCont is TextBox)
                    {
                        TextBox txtDynamic = pnlTextBox.FindControl(cCont.ClientID) as TextBox;
                        obj.FeatureDesc = txtDynamic.Text;
                        Console.WriteLine(obj.FeatureDesc);
                    }
                }
                result = obj.AddFeeture();
            }
            catch (Exception ex)
            {
                throw ex;
            }
            if (result != 0)
            {
                lblresult1.Text = "Saved Successfully";
            }
            else
            {
                 lblresult1.Text = "Not Saved Please try again";
            }
        }

#766167

25 May 2016 07:42

Joined:	03/05/2013
Level:	Gold
Points:	15822

Points:	3

Hi,

As per error details, if you try to access out side range value then you will get this type of error, for example in your array object you have 5 records but you are trying to access 6th record; since you don't have 6th record it will throw "Index was outside the bounds of the array" error.

So, I suggest you to debug the code and check in which line you got this error and check the index value in that line.

--------------------------------------------------------------------------------
Give respect to your work, Instead of trying to impress your boss.

N@veen
Blog : http://naveens-dotnet.blogspot.in/

#766171

25 May 2016 21:23

Joined:	29/05/2009
Level:	Gold
Points:	10341

Points:	2

Hi

Index was outside the bounds of the array

If you using looping or array concept in your code?

there index not coming proper index value

so keep debug and trace in your code step by step
some index not coming that is the issue.

Name : Dotnet Developer-2015
Email Id : kumaraspcode2009@gmail.com

'Not by might nor by power, but by my Spirit,' says the LORD Almighty.

#766172

25 May 2016 21:45

Joined:	13/06/2007
Level:	Gold
Points:	21327

Points:	4

see below snippet in which we have Dynamically creating and adding TextBoxes on Button Click
When the Add Button is clicked, first the count of all the TextBoxes present in the Panel control is determined and then it is incremented to generate an Index which will be used for generating a unique ID for the TextBox control.
The unique ID is passed to the CreateTextBox method, which creates a dynamic TextBox and appends it to the Panel control.
see below snippet


protected void AddTextBox(object sender, EventArgs e)
{
    int index = pnlTextBoxes.Controls.OfType<TextBox>().ToList().Count + 1;
    this.CreateTextBox("txtDynamic" + index);
}

private void CreateTextBox(string id)
{
    TextBox txt = new TextBox();
    txt.ID = id;
    pnlTextBoxes.Controls.Add(txt);
    Literal lt = new Literal();
    lt.Text = "<br />";
    pnlTextBoxes.Controls.Add(lt);
}

protected void GetTextBoxValues(object sender, EventArgs e)
{
    string message = "";
    foreach (TextBox textBox in pnlTextBoxes.Controls.OfType<TextBox>())
    {
        message += textBox.ID + ": " + textBox.Text + "\\n";
    }
    ClientScript.RegisterClientScriptBlock(this.GetType(), "alert", "alert('" + message + "');", true);
}

hope it helps

Thanks
Koolprasd2003
Editor, DotNetSpider MVM
Microsoft MVP 2014 [ASP.NET/IIS]

How to save values of dynamic textboxes in database via asp.net

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