CODEWITHSUNDEEP
c#asp.netrepeater
MRWonderFuXker
MRWonderFuXker

Reputation: 203

Asp.Net Repeater How to find another control on TextBox "TextChanged" event

In my project, I have to create some text box by Repeater object. Then, each text box will be applied a TextChanged event to do other staff.

The structure of a repeater item:

repeater item:
textbox.id = url
Label.id = webTitle

The question is how can I change its own label.text by using url_TextChanged event?

Full code:

        //To create reperater item
       repeater.DataSource = myObj;
       repeater.DataBind();
        foreach (RepeaterItem rptItm in repeater.Items)
        {
            CalendarObj item = calObj[rptItm.ItemIndex];
            rptItm.Controls.Add(new LiteralControl("Enter your URL"));
            TextBox url = new TextBox();
            url.ID = "url";
            url.AutoPostBack = true;
            url.TextChanged += new EventHandler(urlTextBox_TextChanged);
            url.Text = item.listURl;
            rptItm.Controls.Add(url);
            rptItm.Controls.Add(new LiteralControl("<br/>"));

            rptItm.Controls.Add(new LiteralControl("web Title"));
            Label title = new Label();
            title.ID = "title";
            title.Text = "";
            rptItm.Controls.Add(title);
            rptItm.Controls.Add(new LiteralControl("<br/>"));
            rptItm.Controls.Add(new LiteralControl("<br/>"));

        }
    // Event

    protected void urlTextBox_TextChanged(object sender, EventArgs e)
    {
        TextBox textBox = sender as TextBox;
        if (textBox != null)
        {
            string theText = textBox.Text;
            //How?  textbox.parent.title.text = theText?
        }

    }

Upvotes: 3

Views: 2746

Answers (1)

Aruna
Aruna

Reputation: 12022

You can use the NamingContainer of the TextBox and then FindControl method to find the Label by its id as below,

protected void urlTextBox_TextChanged(object sender, EventArgs e)
    {
        TextBox textBox = sender as TextBox;
        if (textBox != null)
        {
            string theText = textBox.Text;
            var item = (RepeaterItem) textBox.NamingContainer;
            if(item != null) {
               Label titleLabel = (Label)item.FindControl("title");
               if(titleLabel != null) {
                  titleLabel.Text = theText;
               }
            }
        }

    }

Upvotes: 3

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