Dynamic Text Box Control

Neeraj Singh

i want to create dynamic textbox control and add in panel and store its value in database

i have already create dynamic textbox control and add in panel but i am not able to get textbox value in Button Click

9 Replies

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Sanjeeb Lenka13y ago
Accepted answer
Hi,
the asp.net don't keep control state.
So if you want to create control dynamicly, you should create the dynamic control every time in Page_Load function.
You can store the dynamic control into session, and then read it at page_load function.
Here is a example, maybe help you. i modified your code check it.

protected void Page_Load(object sender, EventArgs e)
{
if (Session["txt"] != null)
{
TextBox txt = Session["txt"] as TextBox;
panel1.Controls.Add(txt);
}
}
protected void Button1_Click(object sender, EventArgs e)
{
TextBox txt = new TextBox();
txt.Text = ""; txt.ID = "TextBox10";
txt.Width = 560; txt.Height = 48;
panel1.Controls.Add(txt);
Session["txt"] = txt;

}
protected void Button2_Click(object sender, EventArgs e)
{
TextBox t1 = (TextBox)panel1.FindControl("TextBox10");
lblshow.Text = "Text is " + t1.Text;
}

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Neeraj Singh13y ago
Yes when i created Textbox that time i assigned the Textbox value "0" But when textbox created and i changed the value from "0" to "DotNet" and click the button then also textbox value is "0"
0
Vulpes13y ago
Have you actually changed the Text property at runtime as it was an empty string when you created the TextBox?
0
Neeraj Singh13y ago
protected void btnDyn_Click(object sender, EventArgs e)
{
        TextBox txt = new TextBox();
        txt.Text = ""; txt.ID = "TextBox10";
        txt.Width = 560; txt.Height = 48;
        panel1.Controls.Add(txt);
}
protected void btnShow_Click(object sender, EventArgs e)
{
        TextBox t1 = (TextBox)panel1.FindControl("TextBox10");
        lblshow.Text = "Text is " + t1.Text;
}

Again t1 value is null
0
Vulpes13y ago
I gather it's an ASP.NET application rather than Windows Forms.

The code to access the TextBoxes should therefore be similar to what Iftikar posted:

protected void Button1_Click(object sender, EventArgs e)
{
TextBox tb1 = (TextBox)Panel1.FindControl("tb1");
TextBox tb2 = (TextBox)Panel1.FindControl("tb2");
TextBox tb3 = (TextBox)Panel1.FindControl("tb3");
// do something with TextBoxes
}
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Neeraj Singh13y ago
My code is Create Textbox

for (int i = 0; i < 2; i++)
        { TextBox s = new TextBox();
                        s.ID = "tb" + i.ToString();
                        panel1.Controls.Add(s); }

Get Value
for (int i = 0; i {
string txtvalue = "txtBox" + i.ToString();
TextBox txt = (TextBox)paneldyn.FindControl(txtvalue);
}

But Get Value is Not working ....
0
Iftikar Hussain13y ago
Hi,
You can use FindControl for panel and read textbox value

protected void Button1_Click(object sender, EventArgs e)
{
TextBox t1 = (TextBox)Panel1.FindControl("TextBox1");
TextBox t2 = (TextBox)Panel1.FindControl("TextBox2");
}

Regards,
Iftikar
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Sanjeeb Lenka13y ago
Hi,
Refer to this link

http://www.dotnetspider.com/resources/27690-Get-Text-Dynamically-Created-Text-Box.aspx

http://stackoverflow.com/questions/1487618/accessing-value-of-dynamically-created-controls-c-asp-net
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Vulpes13y ago
When you create the dynamic TextBox make sure you set its Name property.

Suppose it's called txtDynamic and it's within a panel called panel1.

Then you can access it from within a button_Click handler as follows:

TextBox txtDynamic = this.panel1.Controls["txtDynamic"] as TextBox;
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