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This example shows on how to get all server controls ID in the page using recursive FindControl.

Here are the code blocks below:

    protected void Page_Load(object sender, EventArgs e)





    public void GetPageControlsID(Control Parent)


        string txBoxID = string.Empty;

        string ddListID = string.Empty;

        string lblID = string.Empty;


        System.Collections.Specialized.StringCollection strColTxtBoxID = new System.Collections.Specialized.StringCollection();

        System.Collections.Specialized.StringCollection strColDDListID = new System.Collections.Specialized.StringCollection();

        System.Collections.Specialized.StringCollection strCollblID = new System.Collections.Specialized.StringCollection();


        if (Parent is TextBox)


            //Get the TextBox Control ID

            txBoxID = ((TextBox)Parent).ID;

            //then store the Control ID in a Collections



        else if (Parent is DropDownList)


            //Get the DropDownLists Control ID

            ddListID = ((DropDownList)Parent).ID;



        else if (Parent is Label)


            //Get the Labels Control ID

            lblID = ((Label)Parent).ID;





            foreach (Control c in Parent.Controls)



        //Just add some conditions here if you wan't to check for all other control types like

        //Button,ListBox, RadioButton, etc...


        //PRINT the Control ID's Collections that was found


        //Iterating through the TextBox Control ID's collections

        foreach (string id in strColTxtBoxID)


            Response.Write(id + "<BR/>");



        //Iterating through the DropDownList Control ID's collections

        foreach (string id in strColDDListID)


            Response.Write(id + "<BR/>");



        //Iterating through the Label Control ID's collections

        foreach (string id in strCollblID)


            Response.Write(id + "<BR/>");





As you can see the code was pretty straight forward and self explanatory.

That’s it!


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Posted on Tuesday, June 23, 2009 4:51 AM ASP.NET , C# , Tips&Tricks | Back to top

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